# Changes
# Version 2.3.11
Release Date: 2018-07-23
# Bugfix and Enhancements
Fix the getting config REST API which throws exceptions.
Support to restart listeners when emqttd is running.
Specify a fixed tag for the dependency libraries.
# emq-auth-jwt
Fix token verification with jwerl 1.0.0
# emq-auth-mongo
Support $all variable in ACL query. (emq-auth-mongo#123)
Support both clientid and username variables in all queries. (emq-auth-mongo#123)
# Version 2.3.10
Release Date: 2018-06-27
# Bugfix and Enhancements
Upgrade the esockd library to v5.2.2
# emq-auth-http
Ignore auth on ignore in body, allows for chaining methods
# Version 2.3.9
Release Date: 2018-05-20
# Bugfix and Enhancements
Bugfix: check params for REST publish API (#1599)
Upgrade the mongodb library to v3.0.5
# esockd
Bugfix: proxy protocol - set socket to binary mode (#78)
# Version 2.3.8
Release Date: 2018-05-11
# Bugfix and Enhancements
Bugfix: unregister users CLI when unload emq_auth_username (#1588)
Bugfix: Should be an info level when change CleanSession (#1590)
Bugfix: emqttd_ctl crashed when emq_auth_usename doesn't exist (#1588)
# emq-auth-mongo
Improve: Support authentication database (authSource) (#116)
# Version 2.3.7
Release Date: 2018-04-22
# Bugfix and Enhancements
Bugfix: fixed spec of function setstats/3 (#1575)
Bugfix: clean dead persistent session on connect (#1575)
Bugfix: dup flag not set when re-deliver (#1575)
Bugfix: Upgrade the lager_console_backend config (#1575)
Improve: Support set k8s namespace (#1575)
Upgrade the ekka library to v0.2.3 (#1575)
Improve: move PIPE_DIR dir from /tmp/${WHOAMI}_erl_pipes/$NAME/ to /$RUNNER_DATA_DIR/${WHOAMI}_erl_pipes/$NAME/ (emq-relx#188)
# emq-auth-http
Improve: Retry 3 times when httpc:request occurred socket_closed_remotely error (emq-auth-http#70)
# Version 2.3.6
Release Date: 2018-03-25
# Bugfix and Enhancements
Security: LWT message checking the ACL (#1524)
Bugfix: Retain msgs should not be sent to existing subscriptions (#1529)
# emq-auth-jwt
Validate JWT token using a expired field (#29)
# Version 2.3.5
Release Date: 2018-03-03
# Bugfix and Enhancements
Feature: Add etc/ssl_dist.conf file for erlang SSL distribution (emq-relx#178)
Feature: Add node.ssl_dist_optfile option and etc/ssl_dist.conf file (#1512)
Feature: Support Erlang Distribution over TLS (#1512)
Improve: Tune off the 'tune_buffer' option for external MQTT connections (#1512)
# emq-sn
Clean registered topics if mqtt-sn client send a 2nd CONNECT in connected state (#76)
Upgrade the esockd library to v5.2.1 (#76)
# emq-auth-http
Remove 'password' param from ACL and superuser requests (#66)
# Version 2.3.4
Release Date: 2018-01-29
# Bugfix and Enhancements
Feature: Forward real client IP using a reverse proxy for websocket (#1335)
Feature: EMQ node.name with link local ipv6 address not responding to ping (#1460)
Feature: Add PROTO_DIST_ARG flag to support clustering via IPv6 address. (#1460)
Bugfix: retain bit is not set when publishing to clients (when it should be set). (#1461)
Bugfix: Can't search topic on web dashboard (#1473)
# emq-sn
Bugfix: CONNACK is not always sent to the client (emq-sn#67)
Bugfix: Setting the port to ::1:2000 causes error (emq-sn#66)
# Version 2.3.3
Release Date: 2018-01-08
# Bugfix and Enhancements
Add a full documentation for emq.conf and plugins.
Repair a dead link in README - missing emq-lwm2m. (#1430)
Subscriber with wildcard topic does not receive retained messages with sub topic has $ sign (#1398)
Web Interface with NGINX Reverse Proxy not working. (#953)
# emq-dashboard
Add dashboard.default_user.login , dashboard.default_user.password options to support configuring default admin.
# emq-modules
The emq-modules rewrite config is not right. (#35)
# emq-docker
Upgrade alpine to 3.7 (#31)
# emq-packages
Support ARM Platform (#12)
# Version 2.3.2
Release Date: 2017-12-26
# Bugfix and Enhancements
Support X.509 certificate based authentication (#1388)
Add proxy_protocol, proxy_protocol_timeout options for ws/wss listener.
Cluster discovery etcd nodes key must be created manually. (#1402)
Will read an incorrect password at the last line of emq_auth_username.conf (#1372)
How can i use SSL/TLS certificate based client authentication? (#794)
Upgrade the esockd library to v5.2.
# esockd
Improve the parser of proxy protocol v2.
Add 'send_timeout', 'send_timeout_close' options.
Rename esockd_transport:port_command/2 function to async_send/2.
Add test case for esockd_transport:async_send/2 function.
Add esockd_transport:peer_cert_subject/1, peer_cert_common_name/1 functions.
# emq-auth-mysql
Update depends on emqtt/mysql-otp.
Fixed the issue that Cannot connect to MySQL 5.7 (#67).
# emq-relx
Fix mergeconf/3 appending line break error. (#152)
# emq-sn
Fix crash in emq_sn_gateway:transform() function which handles SUBACK. (#57)
Define macro SN_RC_MQTT_FAILURE. (#59)
# emq-web-hook
Filter auth_failure client for disconnected hook. (#30)
# Version 2.3.1
Release Date: 2017-12-03
# Bugfix and Enhancements
Remove the unnecessary transactions to optimize session management.
Should not exit arbitrarily when clientid conflicts in mnesia.
Change the default value of 'mqtt.session.enable_stats' to 'on'.
The DUP flag should be set to 0 for all QoS0 messages. (emqttd#1319)
Fix the 'no function clause' exception. (emqttd#1293)
The retained flags should be propagated for bridge. (emqttd#1293)
The management API should listen on 0.0.0.0:8080. (emqttd#1353)
Fast close the invalid websocket in init/1 function.
erlang:demonitor/1 the reference when erasing a monitor. (emqttd#1340)
# emq-retainer
Don't clean the retain flag after the retained message is stored.
Add three CLIs for the retainer plugin. (emq-retainer#38)
# emq-dashboard
Refactor(priv/www): improve the routing page. (emq-dashboard#185)
# emq-modules
Turn off the subscription module by default. (emq-modules#26)
# emq-sn
Add an integration test case for sleeping device.
Do not send will topic if client is kicked out.
Prevent crash information in log when emq_sn_gateway getting timeout, since it is a possible procedure.
# emq-relx
Support node cookie value with = characters. (emq-relx#146)
# mochiweb
Improve Req:get(peername) funciton to support x-forwarded-for and x-remote-port . (emqtt/mochiweb#9)
# Version 2.3.0 "Passenger's Log"
Release Date: 2017-11-20
EMQ 2.3.0 is available now! EMQ R2.3.0 improved the PubSub design to avoid race-condition issue and optimized the message routing efficiency. The self-signed certificates for SSL released with EMQ has been updated. This release also comes with a new dashboard theme and improvement of API design.
# Bugfix and Enhancements
Fixed the issue that Retained message is not sent for Subscribe to existing topic. (emqttd#1314)
Fixed the issue that The DUP flag MUST be set to 0 for all QoS0 messages.(emqttd#1319)
Improve the pubsub design and fix the race-condition issue. (emqttd#PR1342)
Crash on macOS High Sierra (emqttd#1297)
# emq-dashboard Plugin (emq-dashboard#PR174)
Upgraded the 'subscriptions' RESTful API.
Improvement of the auth failure log. (emq-dashboard#59)
# emq-coap Plugin (emq-coap#PR61)
Replaced coap_client with er_coap_client.
Fixed: correct the output format of coap_discover() to enable ".well-known/core".
Refactor the coap_discover method.
# emq-relx
Upgraded the bin/nodetool script to fix the rpcterms command.
# emq-web-hook Plugin
Fixed the emq_web_hook plugin getting username from client.connected hook. (emq-web-hook#19)
# emq-auth-jwt Plugin(emq-auth-jwt#PR15)
Added test cases for emq_auth_jwt.
Fixed jwt:decode/2 functions's return type.
# emq-auth-mongo Plugin(emq-auth-mongo#PR92)
Updated the default MongoDB server configuration.
# Version 2.3-rc.2
Release Date: 2017-10-22
# Bugfix
Change the default logging level of trace CLI. (emqttd#1306)
# emq-dashboard Plugin (emq-dashboard#164)
Fix the 'Status' filters of plugins's management.
Fix the URL Redirection when deleting an user.
Compatible with IE,Safari,360 Browsers.
# Version 2.3-rc.1
Release Date: 2017-10-12
# Bugfix
Fixed the issue that invalid clients can publish will message. (emqttd#1230)
Fixed Dashboard showing no stats data (emqttd#1263)
Fixed a rare occurred building failure (emqttd#1284)
Support Persistence Logs for longer time (emqttd#1275)
Fix for users APIs (emqttd#1289)
Changed passwd_hash/2 function's return type (emqttd#1289)
# emq-dashboard Plugin (emq-dashboard#154)
Improved the Dashboard Interface of Monitoring/Management/Tools.
Allow switching dashboard themes.
Supoort both EN and CN languages.
# Version 2.3-beta.4
Release Date: 2017-09-13
# Highlights
Released a new sexy dashboard.
Add more RESTful APIs for manangement and monitoring.
Configuring the broker through CLI or API without having to restart.
# Bugfix
Job for emqttd.service failed because the control process exited with error code. (emqttd#1238)
Travis-CI Build Failing (emqttd#1221)
Https listener of Dashboard plugin won't work (emqttd#1220)
Service not starting on Debian 8 Jessie (emqttd#1228)
# emq-dashboard
- Support switching to other clustered node.
- Configure and reboot the plugins on the dashboard.
- A login page to replace the basic authentication popup window.
# emq-coap
1.Try to clarify the relationship between coap and mqtt in EMQ. (emq-coap#54).
2.Fix crashes in coap concurrent test(gen-coap#3).
# Version 2.3-beta.3
Release Date: 2017-08-21
# Enhancements
Add HTTP API for hot configuration.
# Bugfix
- Parse 'auth.mysql.password_hash' error when hot configuration reload (emq-auth-mysql#68)
- Set 'auth.pgsql.server' error when hot configuration reload (emq-auth-pgsql#67)
- Set 'auth.redis.server' and 'auth.redis.password_hash' error when hot configuration reload (emq-auth-redis#47)
- Fixed the issue that when deleting retained message subscribed clients are not notified (emqttd#1207)
- Support more parameters for hot configuration reload:
- mqtt.websocket_protocol_header = on
- mqtt.mqueue.low_watermark = 20%
- mqtt.mqueue.high_watermark = 60%
- mqtt.client.idle_timeout = 30s
- mqtt.client.enable_stats = off
# Version 2.3-beta.2
Release Date: 2017-08-12
EMQ R2.3-beta.2, a development release, is available now! This release introduces new HTTP Managment API, and supports Hot configuration of some parameters and plugins.
The plugins which support Hot configuration:
- emq-stomp
- emq-coap
- emq-sn
- emq-lwm2m
- emq-dashboard
- emq-retainer
- emq-recon
- emq-web-hook
- emq-auth-jwt
- emq-auth-http
- emq-auth-mongo
- emq-auth-mysql
- emq-auth-pgsql
- emq-auth-redis
# Enhancements
- Introduce new HTTP management API.
- Add ClientId parameter for HTTP Publish API.
- Allow configuring keepalive backoff.
- Remove the fullsweep_after option to lower CPU usage.
- Authorize HTTP Publish API with clientId.
# emq-sn Plugin (emq-sn#49)
- Support CONNECT message in connected/wait_for_will_topic/wait_for_will_msg states.
- Clean registered topic for a restarted client.
- Bug fix of not clearing buffered PUBLISH messages received during asleep state as those messages are sent to client when client wakes up.
# emq-auth-ldap Plugin (emq-auth-ldap#21)
Improve the design LDAP authentication.
# emq-coap Plugin (emq-coap#51)
Support CoAP PubSub Specification ( https://www.ietf.org/id/draft-ietf-core-coap-pubsub-02.txt (opens new window) )
# Version 2.3-beta.1
Release Date: 2017-07-24
EMQ R2.3-beta.1 is available now! This release supports automatic cluster node discovery and network partition autoheal. It supports automatically forming clusters of Erlang nodes using different strategies, such as IP Multicast, Etcd and Kubernetes.
# Node Discovery and Autocluster
EMQ R2.3 supports node discovery and autocluster with various strategies:
Strategy | Description |
---|---|
static | Autocluster by static node list |
mcast | Autocluster by UDP Multicast |
dns | Autocluster by DNS A Record |
etcd | Autocluster using etcd |
k8s | Autocluster on Kubernetes |
# Network Partition and Autoheal
Enable autoheal of Network Partition by default:
cluster.autoheal = on
When network partition occurs, the following steps are performed to heal the cluster if autoheal is enabled:
- Node reports the partitions to a leader node which has the oldest guid.
- Leader node create a global netsplit view and choose one node in the majority as coordinator.
- Leader node requests the coordinator to autoheal the network partition.
- Coordinator node reboots all the nodes in the minority side.
# Node down and Autoclean
A down node will be removed from the cluster if autoclean is enabled:
cluster.autoclean = 5m
# LWM2M Protocol Support
EMQ-LWM2M is a gateway plugin for EMQ,which implements most LWM2M features. MQTT client is able to access LWM2M device through emq-lwm2m plugin, by sending a command and reading its response.
Lightweight M2M (LWM2M) is a set of protocols defined by the Open Mobile Alliance (OMA) for machine-to-machine (M2M) or Internet of Things (IoT) device management and communications
# JWT Authentication
EMQ R2.3 supports JWT(JSON Web Token) Authentication with emq-auth-jwt (opens new window) plugin.
# Retainer Plugin
Retainer Plugin support 'disc_only' mode to store MQTT retained messages.
# Debian 9 Package
EMQ R2.3 released binary package for Debian 9.
# Erlang/OTP R20
EMQ R2.3 is compatible with Erlang/OTP R20, and all the binary packages are built on Erlang/OTP R20.
# Version 2.2 "Nostalgia"
Release Date: 2017-07-08
Release Name: Nostalgia
EMQ 2.2.0 is available now! EMQ R2.2 supports CoAP(RFC 7252), MQTT-SN protocols completely, and it is extensible with Web Hook, Lua Hook and Elixir Hook.
Feature: Add 'listeners restart/stop' CLI command (emqttd#1135)
Bugfix: Exit Code from emqttd_ctl (emqttd#1133)
Bugfix: Fix spec errors found by dialyzer (emqttd#1136)
Bugfix: Catch exceptions thrown from rpc:call/4 (emq-dashboard#128)
Bugfix: Topic has been decoded by gen-coap, no conversion needed (emq-coap#43)
# Version 2.2-rc.2
Release Date: 2017-07-03
Warning
2.2-rc.2 requires Erlang/OTP R19.3+ to build.
# Bugfix and Enhancements
Compatible with Erlang/OTP R20 (emq-relx#77)
CoAP gateway plugin supports coap-style publish & subscribe pattern. (emq_coap#33)
MQTT-SN gateway plugin supports sleeping device (emq_sn#32)
Upgrade esockd and mochiweb libraries to support restarting a listener
# Version 2.2-rc.1
Release Date: 2017-06-14
# Bugfix and Enhancements
Add a new listener for HTTP REST API (emqttd#1094)
Fix the race condition issue caused by unregister_session/1 (emqttd#1096)
Fix the issue that we cannot remove a down node from the cluster (emqttd#1100)
Passed org.eclipse.paho.mqtt_sn.testing/interoperability tests (emq_sn#29)
Fixed the issue that send http request and return non-200 status code, but AUTH/ACL result is denied (emq-auth-http#33)
Fixed the issue that fail to stop listener (emq_stomp#24)
Support using systemctl to manage emqttd service on CentOS
# Version 2.2-beta.3
Release Date: 2017-05-27
# Bugfix and Enhancements
Call emit_stats when force GC (emqttd#1071)
Update the default value of 'mqtt.mqueue.max_length' to 1000 (emqttd#1074)
Update emq-auth-mongo READEME (emq-auth-mongo#66)
Update default password field (emq-auth-mongo#67)
Upgrade the mongodb library to v3.0.3
Remove ‘check password===undefined && userName!== undefined’ (emq-dashboard#120)
# emq_auth_redis Plugin
Support 'HGET mqtt_user:%u password' for authentication query
# emq_auth_mongo Plugin
Support mongodb Cluster, Replica Set
# Documentation
Add 'Build on Windows' chapter
# Version 2.2-beta.2
Release Date: 2017-05-20
# Bugfix and Enhancements
Add a 'websocket_protocol_header' option to handle WebSocket connection from WeChat (emqttd#1060)
Assign username and password to MQTT-SN's CONNECT message (emqttd#1041)
Allow for Content-Type:application/json in HTTP Publish API (emqttd#1045)
emqttd_http.erl:data conversion (emqttd#1059)
Seperate emq_sn from emqttd (emq-sn#24)
Check St0's type, making it easier to debug crash problems (emq-lua-hook#6)
Fix error: load xxx.lua (emq-lua-hook#8)
Leave luerl alone as a rebar project (emq-lue-hook#9)
Display websocket data in reverse order (emq-dashboard#118)
priv/www/assets/js/dashboard.js:Fixed a typo (emq-dashboard#118)
# Update README
Update README of emq-auth-pgsql: add the 'ssl_opts' configuration (emq-auth-pgsql#56)
Update README of emq-auth-mysql: fix the 'passwd_hash' typo (emq-auth-mysql#54)
Update README of emq-auth-mongo: change 'aclquery' to 'acl_query' (emq-auth-mongo#63)
# Elixir Plugin
Add a new plugin emq-elixir-plugin (opens new window) to support Elixir language.
# Version 2.2-beta.1
Release Date: 2017-05-05
EMQ 2.2-beta.1 is now available. Many new features including Web Hook, Lua Hook and Proxy Protocol have been released in this version.
# MQTT Listeners
Support to configure multiple MQTT TCP/SSL listeners for one EMQ node. For example:
-------
-- External TCP 1883 --> | |
| EMQ | -- Internal TCP 2883 --> Service
-- External SSL 8883--> | |
-------
Configure a listener in etc/emq.conf:
listener.tcp.${name}= 127.0.0.1:2883
listener.tcp.${name}.acceptors = 16
listener.tcp.${name}.max_clients = 102400
# Proxy Protocol V1/2
The EMQ cluster is usually deployed behind a Load Balancer, such as HAProxy or NGINX:
-----
| |
| L | --TCP 1883--> EMQ
--SSL 8883--> | | |
| B | --TCP 1883--> EMQ
| |
-----
The LB can pass the source IP, port of the TCP connection on to EMQ cluster by Proxy Protocol.
Enable Proxy Protocol support for MQTT Listener:
## Proxy Protocol V1/2
## listener.tcp.${name}.proxy_protocol = on
## listener.tcp.${name}.proxy_protocol_timeout = 3s
# Web Hook Plugin
The Web Hook plugin emq-web-hook (opens new window) can trigger a webhook callback when a MQTT client connected to or disconnected from the broker, a MQTT message is published or acked.
# Lua Hook Plugin
The Lua Hook plugin emq-lua-hook (opens new window) make it possible to extend the broker and write business logic with Lua script.
# Improve the Auth/ACL Chain
We improved the Auth/ACL chain design in 2.2 release. The Auth request will be forwarded to next auth module if it is ignored by the current auth module:
-------------- ------------- --------------
Client --> | Redis Auth | -ignore-> | HTTP Auth | -ignore-> | MySQL Auth |
-------------- ------------- --------------
| | |
\|/ \|/ \|/
allow | deny allow | deny allow | deny
# Support bcrypt password hash
Enable the bcrypt password hash in auth module, for example:
auth.redis.password_hash = bcrypt
# API Breaking Change
etc/emq.conf: 'mqtt.queue. ' changed to 'mqtt.mqueue. '
# emq-dashboard
Support 'Unsubscribe' action on WebSocket Page.
# Version 2.1.2
Release Date: 2017-04-21
Fix emqttd_ctl sessions list CLI
Newline character in emq.conf causing error;(emqttd#1000)
Fix crash caused by duplicated PUBREC packet (emqttd#1004)
Unload the 'session.created' and 'session.teminated' hooks (emq-plugin-template)
# Version 2.1.1
Release Date: 2017-04-14
Localhost:8083/status returns 404 when AWS LB check the health of EMQ (emqttd#984)
Https listener not working in 2.1.0 as in 2.0.7 (emq-dashboard#105)
Fix mqtt-sn Gateway not working (emq-sn#12)
Upgrade emq-sn Plugin (emq-sn#11)
Upgrade emq-coap Plugin (emq-coap#21)
# Version 2.1.0
Release Date: 2017-04-07
The stable release of 2.1 version.
Trouble with auth.mysql.acl_query (emq-auth-mysql#38)
Filter the empty fields in ACL table (emq-auth-mysql#39)
# Version 2.1.0-rc.2
Release Date: 2017-03-31
Support pbkdf2 hash (emq-auth-mongo#46)
Kickout the conflict WebSocket connection (emqttd#963)
Correct licence in app.src (emqttd#958)
SSL options to connect to pgsql (emq-auth-pgsql#41)
# Version 2.1.0-rc.1
Release Date: 2017-03-24
EMQ fails to start if run under a different linux user than that which first ran it (emqttd#842)
Depend on emqtt/pbkdf2 to fix the building errors of Travis CI (emqttd#957)
Depend on goldrush and emqtt/pbkdf2 to resolve the building errors (emqttd#956)
Fix 'rebar command not found' (emq-relx#33)
Compile error in v2.1.0-beta.2 (emq-relx#32)
Support salt with passwords (emq-auth-mongo#11)
Change the default storage_type to 'ram' (emq-retainer#13)
# Version 2.1.0-beta.2
Release Date: 2017-03-13
Cannot find AwaitingAck (emqttd#597)
EMQ V2.1 crash when public with QoS = 2 (emqttd#919)
Support pbkdf2 hash (emqttd#940)
Add src/emqttd.app.src to be compatible with rebar3 (emqttd#920)
Add more test cases (emqttd#944)
CRASH REPORT Process <0.1498.0> with 0 neighbours crashed with reason: {ssl_error,{tls_alert,"certificate unknown"}} in esockd_connection:upgrade (emqttd#915)
auth.redis.password_hash = plain by default (emq-auth-redis#20)
# Version 2.1.0-beta.1
Release Date: 2017-02-24
EMQ v2.1.0-beta.1 is now available.
Warning
EMQ 2.1+ Requires Erlang/OTP R19+ to build.
Since 2.1.0 release, we will tag EMQ versions accoding to the Semantic Versioning 2.0.0 (opens new window) principles. And we will release EMQ versions monthly, odd number releases for bugfix and optimization, and even number releases for bugfix and new features.
# Tuning GC
- All the WebSocket, Client, Session processes will hiberante and GC after a period of idle time.
- Add 'mqtt.conn.force_gc_count' configuration to force the Client, Session processes to GC when high message throughput.
- Tune the 'fullsweep_after' option of WebSocket, Client, Session processes.
# Hooks API
Hooks module now support to register the same function with different tags.
# Bugfix
emqttd#916: Add 'mqtt_msg_from()' type
emq-auth-http#15: ACL endpoint isnt called
# Version 2.1-beta
# Version 2.1-beta
Release Date: 2017-02-18
EMQ v2.1-beta is now available. We improved the design of Session/Inflight and use one timer to redeliver the inflight QoS1/2 messages, and improved the GC mechanism of MQTT connection process to reduce CPU usage at the high rate of messages.
# Per Client, Session Statistics
Support Per Client, Session Statistics. Enable by configuration in etc/emq.conf:
mqtt.client.enable_stats = 60s
mqtt.session.enable_stats = 60s
# Add 'missed' Metrics
The 'missed' metrics will be increased when EMQ broker received PUBACK, PUBREC, PUBREL, PUBCOMP packets from clients, but missing in inflight window:
packets/puback/missed
packets/pubrec/missed
packets/pubrel/missed
packets/pubcomp/missed
# Integrate Syslog
Output EMQ log to syslog:
## Syslog. Enum: on, off
log.syslog = on
## syslog level. Enum: debug, info, notice, warning, error, critical, alert, emergency
log.syslog.level = error
# Upgrade QoS
Support to upgrade QoS accoding to the subscription:
mqtt.session.upgrade_qos = on
# Add 'acl reload' CLI
Reload acl.conf without restarting emqttd service (#885)
# etc/emq.conf Changes
- Rename mqtt.client_idle_timeout to mqtt.client.idle_timeout
- Add mqtt.client.enable_stats
- Add mqtt.session.upgrade_qos
- Delete mqtt.session.collect_interval
- Add mqtt.session.enable_stats
- Rename mqtt.session.expired_after to mqtt.session.expiry_interval
# Merge modules to emq_modules
Merge the emq_mod_presence, emq_mod_subscription, emq_mod_rewrite into emq_modules
Rename emq_mod_retainer to emq_retainer project
# Dashboard Plugin
Overview page: Add 'missed' metrics Client page: Add 'SendMsg', 'RecvMsg' Fields Session page: Add DeliverMsg, EnqueueMsg Fields
# recon Plugin
Change the datatype of 'recon.gc_interval' to duration
# reloader Plugin
Change the datatype of 'reloader.interval' to duration
# Version 2.0.7
Release Date: 2017-01-20
The Last Maintenance Release for EMQ 2.0, and support to build RPM/DEB Packages.
Create the emq-package project: https://github.com/emqtt/emq-package (opens new window)
emq-auth-http#9: Update the priv/emq_auth_http.schema, cuttlefish:unset() if no super_req/acl_req config exists
emq-auth-mongo#31: cuttlefish:unset() if no ACL/super config exists
emq-dashboard#91: Fix the exception caused by binary payload
emq-relx#21: Improve the binemqttd.cmd batch script for windows platform
emqttd#873: Documentation: installing-from-source
emqttd#870: Documentation: The word in Documents is wrong
emqttd#864: Hook 'client.unsubscribe' need to handle 'stop'
emqttd#856: Support variables in etc/emq.conf: , ,
# Version 2.0.6
Release Date: 2017-01-08
Upgrade the esockd (opens new window) library to v4.1.1
esockd#41: Fast close the TCP socket if ssl:ssl_accept failed
emq-relx#15: The EMQ 2.0 broker cannot run on Windows.
emq-auth-mongo#31: Mongodb ACL Cannot work?
# Version 2.0.5
Release Date: 2016-12-24
emq-auth-http#9: Disable ACL support
emq-auth-mongo#29: Disable ACL support
emq-auth-mongo#30: {datatype, flag}
# Version 2.0.4
Release Date: 2016-12-16
emqttd#822: Test cases for SSL connections
emqttd#818: trap_exit to link WebSocket process
emqttd#799: Can't publish via HTTPS
# Version 2.0.3
Release Date: 2016-12-12
emqttd#796: Unable to forbidden tcp lisener
emqttd#814: Cannot remove a 'DOWN' node from the cluster
emqttd#813: Change parameters order
emqttd#795: Fix metrics of websocket connections
emq-dashboard#88: Rename the default topic from “/World” to “world”
emq-dashboard#86: Lookup all online clients
emq-dashboard#85: Comment the default listener port
emq-mod-retainer#3: Retained messages get lost after EMQTT broker restart.
# Version 2.0.2
Release Date: 2016-12-05
emqttd#787: Stop plugins before the broker stopped, clean routes when a node down
emqttd#790: Unable to start emqttd service if username/password contains special characters
emq-auth-clientid#4: Improve the configuration of emq_auth_clientid.conf to resolve emqttd#790
emq-auth-username#4: Improve the configuration of emq_auth_username.conf to resolve emqttd#790
# Version 2.0.1
Release Date: 2016-11-30
emqttd#781: Update README for EMQ 2.0
emq_dashboard#84: Show the Cluster Status of Node
emq_dashboard#79: disc_copies to store mqtt_admin table
emq_auth_clientid: disc_copies to store mqtt_auth_clientid table
emq_auth_username: disc_copies to store mqtt_auth_username table
emq_mod_subscription#3: Remove emq_mod_subscription table and module.subscription.backend config
emq_plugin_template#5: Unregister Auth/ACL modules when the plugin unloaded
# Version 2.0 "West of West Lake"
Release Date: 2016-11-24
Release Name: West of West Lake
The EMQ Version 2.0, named "West of West Lake", has been released with a lot of improvements and enhancements, and is ready to deploy in production now.
- First of all, the EMQ broker now supports Shared Subscription and Local Subscription .
- Supports CoAP(RFC 7252) and MQTT-SN protocol/gateway.
- Adopt a more user-friendly k = v syntax for the new configuration file.
- Add more hooks and new plugins, integrate with HTTP, LDAP, Redis, MySQL, PostgreSQL and MongoDB.
- Cross-platform Builds and Deployment. Run the broker on Linux, Unix, Windows, Raspberry Pi and ARM platform.
# Shared Subscription
Shared Subscription supports Load balancing to distribute MQTT messages between multiple subscribers in the same group:
---------
| | --Msg1--> Subscriber1
Publisher--Msg1,Msg2,Msg3-->| EMQ | --Msg2--> Subscriber2
| | --Msg3--> Subscriber3
---------
Create a shared subscription with $queue/ or $share/<group>/ prefix:
Prefix | Examples |
---|---|
$queue/ | mosquitto_sub -t '$queue/topic |
$share/<group>/ | mosquitto_sub -t '$share/group/topic |
# Local Subscription
The Local Subscription will not create global routes on clustered nodes, and only dispatch MQTT messages on local node.
Usage: subscribe a topic with $local/ prefix.
# erlang.mk and relx
The EMQ 2.0 adopts erlang.mk (opens new window) and relx (opens new window) tools to build the whole projects on Linux, Unix and Windows.
# CoAP Support
The EMQ 2.0 supports CoAP(RFC7252) protocol/gateway now, and supports communication between CoAP, MQTT-SN and MQTT clients.
CoAP Protocol Plugin: https://github.com/emqtt/emqttd_coap (opens new window)
# MQTT-SN Support
The EMQ 2.0 now supports MQTT-SN protocol/gateway.
MQTT-SN Plugin: https://github.com/emqtt/emq_sn (opens new window)
# New Configuration File
The release integrated with cuttlefish library, and adopted a more user-friendly k = v syntax for the new configuration file:
## Node name
node.name = emqttd@127.0.0.1
...
## Max ClientId Length Allowed.
mqtt.max_clientid_len = 1024
...
The new configuration files will be preprocessed and translated to an Erlang app.config before the EMQ broker started:
---------------------- 2.0/schema/*.schema -------------------
| etc/emq.conf | ----------------- \|/ | data/app.config |
| + | --> mergeconf --> | data/app.conf | --> cuttlefish generate --> | |
| etc/plugins/*.conf | ----------------- | data/vm.args |
---------------------- -------------------
# OS Environment Variables
EMQ_NODE_NAME | Erlang node name |
---|---|
EMQ_NODE_COOKIE | Cookie for distributed erlang node |
EMQ_MAX_PORTS | Maximum number of opened sockets |
EMQ_TCP_PORT | MQTT TCP Listener Port, Default: 1883 |
EMQ_SSL_PORT | MQTT SSL Listener Port, Default: 8883 |
EMQ_HTTP_PORT | HTTP/WebSocket Port, Default: 8083 |
EMQ_HTTPS_PORT | HTTPS/WebSocket Port, Default: 8084 |
# Docker Image
We released an official Docker Image for EMQ 2.0. The open source project for Dockerfile: https://github.com/emqtt/emq_docker (opens new window) .
# Full Support for Windows
The EMQ 2.0 fully supports Windows platform. You can run 'emqttd_ctl' command and cluster two nodes on Windows now.
# Bugfix and Enhancements
#764: add mqtt.cache_acl option
#667: Configuring emqttd from environment variables
#722: mqtt/superuser calls two times emqtt_auth_http
#754: "-heart" option for EMQ 2.0
#741: emq_auth_redis cannot use hostname as server address
# Plugins
# Version 2.0-rc.3
Release Date: 2016-11-01
- Change the three modules(Presence, Retainer, Subscription) to standalone plugins:
emq_mod_retainer (opens new window) | Retained Message Storage |
---|---|
emq_mod_presence (opens new window) | Publish presence message to $SYS topics when client connected or disconnected |
emq_mod_subscription (opens new window) | Subscribe topics automatically when client connected |
- Update the SSL certificates under the etc/certs/ folder.
- Bugfix: Fixed a typo (#716)
- Bugfix: emqttd_http can not use emq_auth_http? #739
- Bugfix: emq_auth_redis cannot use hostname as server address (#741)
- Upgrade Redis, MySQL, Postgre and MongoDB plugins to support hostname.
# Version 2.0-rc.2
Release Date: 2016-10-19
A more user-friendly configuration for the EMQ broker. Integrate with cuttlefish library and adopt K = V syntax:
node.name = emqttd@127.0.0.1 ... mqtt.listener.tcp = 1883 ...
Support OS Environments:
EMQ_NODE_NAME EMQ_NODE_COOKIE EMQ_MAX_PORTS EMQ_TCP_PORT EMQ_SSL_PORT EMQ_HTTP_PORT EMQ_HTTPS_PORT
Refactor all the modules and plugins, and adopt new configuration syntax.
# Version 2.0-rc.1
Release Date: 2016-10-03
mqtt/superuser POST called two times in emqtt_auth_http (#696)
Close MQTT TCP connection if authentication failed (#707)
Improve the plugin management. Developer don't need to add plugin's config to rel/sys.config
Add BUILD_DEPS in the plugin's Makefile:
BUILD_DEPS = emqttd dep_emqttd = git https://github.com/emqtt/emqttd emq20
Improve the design of Redis ACL.
# Version 2.0-beta.3
Release Date: 2016-09-18
# New Features
Shared Suscriptions (#639, #416):
mosquitto_sub -t '$queue/topic'
mosquitto_sub -t '$share/group/topic'
Local Subscriptions that will not create global routes:
mosquitto_sub -t '$local/topic'
# Bugfix
Error on Loading emqttd_auth_http (#691)
Remove 'emqttd' application from dependencies (emqttd_coap PR#3)
# Version 2.0-beta.2
Release Date: 2016-09-10
# CoAP Support
Release an experimental CoAP Gateway: https://github.com/emqtt/emqttd_coap (opens new window)
# API Breaking Changes
'$u', '$c' variables in emqttd.conf and modules/acl.conf changed to '%u', '%c'
Improve the design of mqtt retained message, replace emqttd_retainer with emqttd_mod_retainer.
Add 'session.subscribed', 'session.unsubscribed' hooks, remove 'client.subscribe.after' hook
Tab 'retained_message' -> 'mqtt_retained'
# Bugfix
[2.0 beta1] FORMAT ERROR: "~s PUBLISH to ~s: ~p" (PR #671)
Fixing issues in cluster mode. (PR #681)
Fixing issues with unsubscribe hook (PR #673)
# Version 2.0-beta.1
Release Date: 2016-08-30
Release Name: West of West Lake
# EMQ - Shortened Project Name
Adopt a shortened project name: EMQ(Erlang/Enterprise/Elastic MQTT Broker), E means Erlang/OTP, Enterprise and Elastic.
# Improve the Release Management
In order to iterate the project fast, we will adopt a new release management strategy since 2.0. There will be two or three 'Preview Release' named beta1, beta2 or beta3, and then one or two 'Release Candidate' named rc1, rc2 before a Major version is production ready.
# Seperate Rel from Application
We split the emqttd 1.x project into two projects since 2.0-beta1 release to resolve the plugins' dependency issue.
A new project named emqttd-relx (opens new window) is created and responsible for buiding the emqttd application and the plugins:
git clone https://github.com/emqtt/emqttd-relx.git
cd emqttd-relx && make
cd _rel/emqttd && ./bin/emqttd console
# erlang.mk and relx
The rebar which is used in 1.x release is replaced by erlang.mk (opens new window) and relx (opens new window) tools since 2.0-beta1 release.
You can check the 'Makefile' and 'relx.config' in the release project of the borker: emqttd-relx (opens new window) .
# Improve Git Branch Management
stable | 1.x Stable Branch |
---|---|
master | 2.x Master Branch |
emq10 | 1.x Developement Branch |
emq20 | 2.x Development Branch |
emq30 | 3.x Development Branch |
issue#{id} | BugFix Branch |
# New Config Syntax
Since 2.0-beta1 release the configuration file of the broker and plugins adopt a new syntax like rebar.config and relx.config:
etc/emqttd.conf for example:
%% Max ClientId Length Allowed.
{mqtt_max_clientid_len, 512}.
%% Max Packet Size Allowed, 64K by default.
{mqtt_max_packet_size, 65536}.
%% Client Idle Timeout.
{mqtt_client_idle_timeout, 30}. % Second
# MQTT-SN Protocol Plugin
The MQTT-SN Protocol Plugin emqttd_sn (opens new window) has been ready in 2.0-beta1 release. The default UDP port of MQTT-SN is 1884.
Load the plugin:
./bin/emqttd_ctl plugins load emqttd_sn
# Improve the PubSub Design
# Improve the Plugin Management
The plugin of EMQ 2.0 broker is a normal erlang application which depends on and extends 'emqttd'. You can create a standalone plugin application project, and add it to emqttd-relx (opens new window) Makefile as a DEP.
All the plugins' config files will be copied to emqttd/etc/plugins/ folder when making emqttd brinary packages in emqttd-relx (opens new window) project:
▾ emqttd/
▾ etc/
▸ modules/
▾ plugins/
emqtt_coap.conf
emqttd.conf
emqttd_auth_http.conf
emqttd_auth_mongo.conf
emqttd_auth_mysql.conf
emqttd_auth_pgsql.conf
emqttd_auth_redis.conf
emqttd_coap.conf
emqttd_dashboard.conf
emqttd_plugin_template.conf
emqttd_recon.conf
emqttd_reloader.conf
emqttd_sn.conf
emqttd_stomp.conf
# EMQ 2.0 Documentation
https://developer.emqx.io/docs/emq/v2/en/index.html (opens new window)
# Version 1.1.3
Release Date: 2016-08-19
Support './bin/emqttd_ctl users list' CLI (#621)
Cannot publish payloads with a size of the order 64K using WebSockets (#643)
Optimize the procedures that retrieve the Broker version and Borker description in the tick timer (PR#627)
Fix SSL certfile, keyfile config (#651)
# Version 1.1.2
# Version 1.1.2
Release Date: 2016-06-30
Upgrade mysql-otp driver to 1.2.0 (#564, #523, #586, #596)
Fix WebSocket Client Leak (PR #612)
java.io.EOFException using paho java client (#551)
Send message from paho java client to javascript client (#552)
Compatible with the Qos0 PUBREL packet (#575)
Empty clientId with non-clean session accepted (#599)
Update docs to fix typos (#601, #607)
# Version 1.1.1
Release Date: 2016-06-04
Compatible with the Qos0 PUBREL packet (#575)
phpMqtt Client Compatibility (#572)
java.io.EOFException using paho java client (#551)
# Version 1.1
Release Date: 2016-06-01
# Highlights
Upgrade eSockd library to 4.0 and Support IPv6
Support to listen on specific IP Address:
{mqtt, {"192.168.1.20", 1883}, [
...
]},
Add MongoDB, HTTP Authentication/ACL Plugins
Upgrade MySQL, PostgreSQL, Redis Plugins to support superuser authentication and avoid SQL Injection
# Enhancements
Allow human-friendly IP addresses (PR#395)
File operation error: emfile (#445)
emqttd_plugin_mongo not found in emqttd (#489)
emqttd_plugin_mongo Error While Loading in emqttd (#505)
Feature request: HTTP Authentication (#541)
Compatible with the Qos0 PUBREL packet (#575)
# Bugfix
Bugfix: function_clause exception occurs when registering a duplicated authentication module (#542)
Bugfix: ./emqttd_top msg_q result: {"init terminating in do_boot",{undef,[{etop,start,[],[]},{init,start_it,1,[]},{init,start_em,1,[]}]}} (#557)
# Tests
111 common test cases.
# Dashboard Plugin
WebSocket Page: Support 'Clean Session', Qos, Retained parameters (emqttd_dashboard#52)
Upgrade eSockd library to 4.0, Show OTP Release on Overview Page (emqttd_dashboard#61)
Changing dashboard credentials for username authentication (emqttd_dashboard#56)
Add './bin/emqttd_ctl admins' CLI, support to add/delete admins
# HTTP Auth Plugin
Authentication/ACL by HTTP API: https://github.com/emqtt/emqttd_auth_http (opens new window)
# MongoDB Plugin
Upgrade Erlang MongoDB driver to v1.0.0
Support superuser authentication
Support ACL (emqttd_plugin_mongo#3)
# MySQL Plugin
Support superuser authentication
Use parameterized query to avoid SQL Injection
# Postgre Plugin
Support superuser authentication
Use parameterized query to avoid SQL Injection
# Redis Plugin
Support superuser authentication
Support ClientId authentication by '%c' variable
# Reloader Plugin
Reload modified modules during development automatically.
# Version 1.0.3
Release Date: 2016-05-23
eSockd 3.2
MochiWeb 4.0.1
# Version 1.0.2
Release Date: 2016-05-04
Issue#534 - './bin/emqttd_ctl vm' - add 'port/count', 'port/limit' statistics
Issue#535 - emqttd_client should be terminated properly even if exception happened when sending data
PR#519 - The erlang '-name' requires the fully qualified host name
emqttd_reloader plugin - help reload modified modules during development.
# Version 1.0.1
Release Date: 2016-04-16
PR#515 - Fix '$queue' pubsub, add 'pubsub_queue' test and update docs
# Version 1.0 (The Seven Mile Journey)
Release Date: 2016-04-13
Release Name: The Seven Mile Journey
We finally released Version 1.0 (The Seven Mile Journey) with full documentation after two years' development and more than fifty iterations.
The emqttd 1.0 implements a fully-featured, scalable, distributed and extensible open-source MQTT broker for IoT, M2M and Mobile applications:
- Full MQTT V3.1/3.1.1 Protocol Specifications Support
- Massively scalable - Scaling to 1 million connections on a single server
- Distributed - Route MQTT Messages among clustered or bridged broker nodes
- Extensible - LDAP, MySQL, PostgreSQL, Redis Authentication/ACL Plugins
# Bugfix and Enhancements
Possible race condition using emqttd_cm (#486)
Improve the design of retained message expiration (#503)
Do not expire the retained messages from $SYS/# topics (#500)
# Documentation
https://developer.emqx.io/docs (opens new window)
http://docs.emqtt.com/ (opens new window)
# Thanks
Thank Ericsson for the Great Erlang/OTP Platform ( http://erlang.org/ (opens new window) )!
Contributors on GitHub: @callbay @lsxredrain @hejin1026 @desoulter @turtleDeng @Hades32 @huangdan @phanimahesh @dvliman @Prots @joaohf
Partners: EACG ( http://eacg.de/ (opens new window) )
Favorite Band: The Seven Mile Journey ( http://www.thesevenmilejourney.dk/ (opens new window) )
# Version 0.17.1-beta
Release Date: 2016-03-22
# Enhancements
Time unit of session 'expired_after' changed to minute. (#479)
# Dashboard
Code Review and improve the design of Dashboard.
# Version 0.17.0-beta
Release Date: 2016-03-15
# Highlights
Installation and Configuration Guide released on http://docs.emqtt.com (opens new window)
Improve and Consolidate the design of Hook, Server, PubSub and Router
Upgrade the [Web Dashboard]( https://github.com/emqtt/emqttd_dashboard (opens new window) ) to support pagination
Bridge emqttd broker to another emqttd broker & emqttd to mosquitto bridge (#438)
# Enhancements
emqttd_ctl: better error message (#450)
./bin/emqttd_ctl: add 'routes' command:
routes list # List all routes
routes show <Topic> # Show a route
Add 'backend_subscription' table and support static subscriptions (emqttd_backend)
Add 'retained_message' table and refactor emqttd_retainer module (emqttd_backend)
A New Hook and Callback Design (emqttd_hook)
Add PubSub, Hooks APIs to emqttd module (emqttd)
Move start_listeners/0, stop_listeners/0 APIs to emqttd_app module (emqttd_app)
# Tests
Add 100+ common test cases.
# Plugins
Upgrade Dashboard, Redis, Stomp and Template Plugins
# Version 0.16.0-beta
Release Date: 2016-02-16
# Highlights
Licensed under the Apache License, Version 2.0 Now.
Improve the design of cluster, support to join or leave the cluster (#449):
$ ./bin/emqttd_ctl cluster
cluster join <Node> #Join the cluster
cluster leave #Leave the cluster
cluster remove <Node> #Remove the node from cluster
cluster status #Cluster status
Improve the design of Trie and Route, only the wildcard topics stored in Trie.
Common Test to replace EUnit.
# Enhancements
mqtt_message record: add 'sender' field (#440)
refactor the emqttd, emqttd_time, emqttd_opts, emqttd_node modules.
# Bugfix
noproc error when call to gen_server2:call(false, {add_route,Topic,<0.685.0>}, infinity) (#446)
# Plugins
Changed the license of all plugins.
# Version 0.15.0-beta
Release Date: 2016-01-31
# Highlights
Optimize for Push Application, 500K+ Subscribers to a Topic.
Optimization for Route ETS insertion (#427)
Priority Message Queue for Persistent Session (#432)
Add Redis, MongoDB Plugins (#417)
# Enhancements
Username/Password Authentication: Support to configure default users (#428)
Improve CLI Commands: pubsub, bridges, trace (#429)
emqttd_mod_subscription: fix client_connected/3
emqttd_auth_mod: add passwd_hash/2 function
priority_queue: add plen/2, out/2 functions
# Bugfix
Fix dequeue/1 of emqttd_bridge...
Add emqttd:seed_now/0 function
# Plugins
emqttd_plubin_mysql: Changed mysql driver to mysql-otp
emqttd_plugin_pgsql: Integrate with ecpool
emqttd_plugin_redis: First release
emqttd_plugin_mongo: First release
# Version 0.14.1-beta
Release Date: 2015-12-28
Bugfix: emqttd_ws_client.erl: Unexpected Info: {'EXIT',<0.27792.18>,{shutdown,destroy}} (#413)
Improve: fix spec errors found by dialyzer
# Version 0.14.0-beta
Release Date: 2015-12-18
# Highlights
Scaling to 1.3 Million Concurrent MQTT Connections on a 12 Core, 32G CentOS server.
New PubSub, Router Design (#402). Prepare for scaling to 10 millions on one cluster.
# Enhancements
Improve the gproc_pool usage with a general emqttd_pool_sup
Improve the design of emqttd_pubsub, add a new emqttd_router module
Improve the design of the whole supervisor tree
Route aging mechanism to remove the topics that have no subscriptions
Improve the dashboard, mysql, pgsql, stomp, sockjs plugins
Add 'topics', 'subscriptions' admin commands
Avoid using mnesia table index and mnesia:index_read API to lower CPU usage
Subscribe timeout exception (#366)
Long Delay on Multiple Topic Subscription (#365)
Subscriptions persistence (#344)
emqttd_ctl: 'subscriptions' command to force clients to subscribe some topics (#361)
# Bugfix
emqttd_sm: spec of lookup_session/1 is not right BUG (#411)
Observer application should be removed from reltool.config for 'wx' app is not available (#410)
# Benchmark
1.3 million concurrent MQTT connections on a 12 Core, 32G CentOS Server, consume about 15G Memory and 200% CPU.
# Version 0.13.1-beta
Release Date: 2015-11-28
Bugfix: Plugin pathes error under windows (#387)
Improve: Too many error logs "[error] Session ..... Unexpected EXIT: client_pid=<0.14137.35>, exit_pid=<0.30829.22>, reason=nop..." (#383)
Improve: Define QOS0/1/2, Pooler Error (PR#382)
Improve: High CPU load when 400K unstable mobile connections (#377)
BugFix: emqttd_plugin_pgsql - error using same query with latest update plugin (pgsql#5)
# Version 0.13.0-beta
Release Date: 2015-11-08
# Highlights
Rate Limiting based on [Token Bucket]( https://en.wikipedia.org/wiki/Token_bucket (opens new window) ) and [Leaky Bucket]( https://en.wikipedia.org/wiki/Leaky_bucket#The_Leaky_Bucket_Algorithm_as_a_Meter (opens new window) ) Algorithm
Upgrade eSockd and MochiWeb libraries to support Parameterized Connection Module
Improve emqttd_client to support fully asynchronous socket networking
# Enhancements
Protocol Compliant - Session Present Flag (#163)
Compilation fails if repo is cloned with a different name (#348)
emqttd_client: replace gen_tcp:send with port_command (#358)
TCP sndbuf, recbuf, buffer tuning (#359)
emqttd_client.erl to handle 'inet_async', 'inet_reply' properly (#360)
Refator the [client/session management design]( https://github.com/emqtt/emqttd/blob/master/doc/design/ClientSession.md (opens new window) )
# Bugfix
Cannot kick transient client out when clientId collision (#357)
Fix the order of emqttd_app:start_server/1 (#367)
emqttd_ session:subscribe/2 will crash (#374)
# Benchmark
[benchmark for 0.13.0 release]( https://github.com/emqtt/emqttd/wiki/benchmark-for-0.13.0-release (opens new window) )
3.1G memory and 50+ CPU/core:
Connections: 250K
Subscribers: 250K
Topics: 50K
Qos1 Messages/Sec In: 4K
Qos1 Messages/Sec Out: 20K
Traffic In(bps): 12M+
Traffic Out(bps): 56M+
# Version 0.12.3-beta
Release Date: 2015-10-22
Bugfix: emqttd_sysmon crasher for 'undefined' process_info (#350)
Bugfix: emqttd_client: catch parser exception (#353)
# Version 0.12.2-beta
Release Date: 2015-10-16
Bugfix: Retained messages should not be expired if 'broker.retained.expired_after = 0' (#346)
# Version 0.12.1-beta
Release Date: 2015-10-15
Highlight: Release for Bugfix and Code Refactor.
Feature: Retained message expiration (#182)
Improve: '$SYS/#' publish will not match '#' or '+/#' (#68)
Improve: Add more metrics and ignore '$SYS/#' publish (#266)
Improve: emqttd_sm should be optimized for clustered nodes may be crashed (#282)
Improve: Refactor emqttd_sysmon and suppress 'monitor' messages (#328)
Task: benchmark for 0.12.0 release (#225)
Benchmark: About 900K concurrent connections established on a 20Core, 32G CentOS server.
# Version 0.12.0-beta
Release Date: 2015-10-08
# Highlights
Enhance the emqttd_ctl module to allow plugins to register new commands (#256)
Add [emqttd_recon plugin]( https://github.com/emqtt/emqttd_recon (opens new window) ) to debug/optimize the broker (#235)
Add './bin/emqttd_ctl broker pubsub' command to check the status of core pubsub processes
Add './bin/emqttd_top' command(like etop) to show the top 'msg_q', 'reductions', 'memory' or 'runtime' processes
'rel/files/emqttd.config.production' for production deployment(default)
'rel/files/emqttd.config.development' for development deployment
# Enhancements
Qos1/2 messages will not be dropped under unstable mobile network (#264)
emqttd_session:subscribe/2, emqttd_session:unsubscribe/2 APIs should be asynchronous (#292)
etc/emqttd.config : 'idle_timeout' option to close the idle client(socket connected but no 'CONNECT' frame received)
etc/emqttd.config : 'unack_retry_interval' option for redelivering Qos1/2 messages
How to monitor large 'message_queue_len' (#283)
# Bugfix
Behaviour emqttd_auth_mod is missing init callback (#318)
# Benchmark
Write a new [benchmark tool]( https://github.com/emqtt/emqtt_benchmark (opens new window) ) to benchmark this release
Hw requirements - 5K users, 25-50 msgs/sec, QoS=1 (#209)
Supported Number of Connections Greatly Reduced When Clients are Subscribing (#324)
# Version 0.11.0-beta
Release Date: 2015-09-25
Highlight: Rebar to manage plugin dependencies.
Highlight: [Stomp]( https://github.com/emqtt/emqttd_stomp (opens new window) ) and [SockJS]( https://github.com/emqtt/emqttd_sockjs (opens new window) ) Plugins!
Improve: add rel/files/emqttd.config.development|production.
Improve: rel/reltool.config.script to release deps of plugin.
Improve: persist mnesia schema on slave nodes.
Improve: use timer:seconds/1 api.
Improve: The binary release will be compiled with R18.1 now.
Bugfix: issue#306 - emqttd_cm should unregister the duplicated client
Bugfix: issue#310 - usage of emqttd_ctl error: 'session list' should be 'sessions list'
Bugfix: issue#311 - './bin/emqttd_ctl sessions list' error
Bugfix: issue#312 - unsubcribe will lead to crash if emqttd_plugin_template plugin loaded
# Version 0.10.4-beta
Release Date: 2015-09-18
Optimize session management and upgrade eSockd library to 2.7.1
[Benchmark for 0.10.4 release]( https://github.com/emqtt/emqttd/wiki/benchmark-for-0.10.4-release (opens new window) )
Improve: issue#294 - [error] failed to start connection on 0.0.0.0:1883 - enotconn
Improve: issue#297 - How do I allow user with some pattern to access topic with some pattern?
Bugfix: issue#291 - "./bin/emqttd attach ..." cannot work
Bugfix: issue#284 - Should not use erlang:list_to_atom/1 in emqttd_vm.erl
# Version 0.10.3-beta
Release Date: 2015-08-30
Bugfix: issue#271 - add emqttd_ws_client:subscribe/2 function
Bugfix: issue#269 - bin/emqttd Syntax error on ubuntu
Improve: issue#265 - client under unstable mobile network generate a lot of logs
# Version 0.10.2-beta
Release Date: 2015-08-26
Improve: issue#257 - After the node name changed, the broker cannot restart for mnesia schema error.
# Version 0.10.1-beta
Release Date: 2015-08-25
Bugfix: issue#259 - when clustered the emqttd_dashboard port is close, and the 'emqttd' application cannot stop normally.
Feature: issue#262 - Add ' http://host:8083/mqtt/status (opens new window) ' Page for health check
# Version 0.10.0-beta
Release Date: 2015-08-20
[Web Dashboard]( https://github.com/emqtt/emqttd_dashboard (opens new window) ) and [MySQL]( https://github.com/emqtt/emqttd_plugin_mysql (opens new window) ), [PostgreSQL]( https://github.com/emqtt/emqttd_plugin_pgsql (opens new window) ) Authentication/ACL Plugins!
Highlight: Web Dashboard to monitor Statistics, Metrics, Clients, Sessions and Topics of the broker.
Highlight: JSON/HTTP API to query all clients connected to broker.
Highlight: A new [Plugin Design]( https://github.com/emqtt/emqttd/wiki/Plugin%20Design (opens new window) ) and a [Template project]( https://github.com/emqtt/emqttd_plugin_template (opens new window) ) for plugin development.
Highlight: Authentication/ACL with MySQL, PostreSQl databases (#194, #172)
Feature: Session Statistics including inflight_queue, message_queue, message_dropped, awaiting_rel, awaiting_ack, awaiting_comp (#213)
Feature: Cookie based authentication for MQTT over websocket connections (#231)
Feature: Get all clients connected to the broker (#228, #230, #148, #129)
Feature: "./bin/emqttd_ctl clients show ClientId" to query client status (#226)
Feature: "./bin/emqttd_ctl clients kick ClientId" to kick out a client
Feature: "./bin/emqttd_ctl sessions list" to show all sessions
Feature: "./bin/emqttd_ctl sessions show ClientId" to show a session
Feature: Erlang VM metrics monitor with Web Dashboard (#59)
Improve: Too many "inflight queue is full!" log when session is overloaded (#247)
Improve: There are two many "MQueue(~s) drop ~s" logs if the message queue of session is small (#244)
Improve: gen_server2(from RabbitMQ) to improve emqttd_session, emqttd_pubsub
Improve: Makefile to build plugins
Bugfix: emqttd_broker:unhook/2 cannot work (#238)
Bugfix: emqttd plugin cannot include_lib("emqttd/include/emqttd.hrl") (#233)
Bugfix: Too many 'Session ~s cannot find PUBACK' logs (#212)
Bugfix: emqttd_pooler cannot work
# Version 0.9.3-alpha
Release Date: 2015-07-25
Wiki: [Bridge]( https://github.com/emqtt/emqttd/wiki/Bridge (opens new window) )
Improve: emqttd_protocol.hrl to define 'QOS_I'
Improve: emqttd_pubsub to add subscribe/2 API
Improve: ./bin/emqttd_ctl to support new bridges command
Bugfix: issue #206 - Cannot bridge two nodes
# Version 0.9.2-alpha
Release Date: 2015-07-18
Improve: issue #196 - Add New Hook 'client.subscribe.after'
# Version 0.9.1-alpha
Release Date: 2015-07-10
Bugfix: issue #189 - MQTT over WebSocket(SSL) cannot work?
Bugfix: issue #193 - 'client.ack' hook should be renamed to 'message.acked', and called by emqttd_broker:foreach_hooks
# Version 0.9.0-alpha
Release Date: 2015-07-09
[Session, Queue, Inflight Window, Hooks, Global MessageId and More Protocol Compliant]( https://github.com/emqtt/emqttd/releases/tag/0.9.0-alpha (opens new window) ) Now!
Feature: Session/Queue/Inflight Window Design (#145).
Feature: Support to resume a persistent session on other clustered node.
Feature: Support alarm management.
Feature: emqttd_guid to generate global unique message id.
Feature: Hooks for message pub/ack.
Feature: Protocol compliant - message ordering, timeout and retry.
Improve: Every client will start_link a session process, whether or not the client is persistent.
Improve: etc/emqttd.config to support more session, queue configuration.
Improve: issue #179 - Max offline message queue {max_queue, 100} meaning.
Improve: issue #180 - Should change project structure for other projects maybe depend on 'emqttd'. Merge emqtt, emqttd apps.
Improve: issue #185 - PacketId and MessageId: the broker should generate global unique message id.
Improve: issue #187 - etc/emqttd.config to support https listener
Improve: issue #186 - emqttd_cm to store client details
Improve: issue #174 - add 'from' field to mqtt_message record.
Improve: issue #170 - $SYS Topics should support alarms.
Improve: issue #169 - Add More [Hooks]( https://github.com/emqtt/emqttd/wiki/Hooks-Design (opens new window) )
Improve: issue #167 - Inflight window to assure message ordering.
Improve: issue #166 - Message delivery timeout and retry.
Improve: issue #143 - Qos1, Qos2 PubSub message timeout.
Improve: issue #122 - Labeling message with unique id. emqttd_guid module to generate global unique msgid.
Improve: emqttd_bridge to support pending message queue, and fix the wrong Qos design.
Improve: mqtt_message record to add 'msgid', 'from' and 'sys' fields.
Change: Add emqttd_mqueue, emqttd_guid, emqttd_alarm modules.
Bugfix: issue #184 - emqttd_stats:setstats is not right.
Bugfix: Closed issues #181, #119.
Tests: fix the parser, acl test cases.
# Version 0.8.6-beta
Release Date: 2015-06-17
Bugfix: issue #175 - publish Will message when websocket is closed without 'DISCONNECT' packet
# Version 0.8.5-beta
Release Date: 2015-06-10
Bugfix: issue #53 - client will receive duplicate messages when overlapping subscription
# Version 0.8.4-beta
Release Date: 2015-06-08
Bugfix: issue #165 - duplicated message when publish 'retained' message to persistent client
# Version 0.8.3-beta
Release Date: 2015-06-05
Bugfix: issue #158 - should queue:in new message after old one dropped
Bugfix: issue #155 - emqtt_parser.erl: parse_topics/3 should reverse topics
Bugfix: issue #149 - Forget to merge plugins/emqttd_auth_mysql from 'dev' branch to 'master' in 0.8.x release
# Version 0.8.2-alpha
Release Date: 2015-06-01
Bugfix: issue #147 - WebSocket client cannot subscribe queue '$Q/queue/${clientId}'
Bugfix: issue #146 - emqttd_auth_ldap: fill(Username, UserDn) is not right
# Version 0.8.1-alpha
Release Date: 2015-05-28
Client [Presence]( https://github.com/emqtt/emqttd/wiki/Presence (opens new window) ) Support and [$SYS Topics]( https://github.com/emqtt/emqttd/wiki/$SYS-Topics (opens new window) ) Redesigned!
Bugfix: issue #138 - when client disconnected normally, broker will not publish disconnected $SYS message
Bugfix: fix websocket url in emqttd/priv/www/websocket.html
Improve: etc/emqttd.config to allow websocket connections from any hosts
Improve: rel/reltool.config to exclude unnecessary apps.
# Version 0.8.0-alpha
Release Date: 2015-05-25
[Hooks]( https://github.com/emqtt/emqttd/wiki/Hooks%20Design (opens new window) ), Modules and [Plugins]( https://github.com/emqtt/emqttd/wiki/Plugin%20Design (opens new window) ) to extend the broker Now!
Plugin: emqttd_auth_mysql - MySQL authentication plugin (issues #116, #120)
Plugin: emqttd_auth_ldap - LDAP authentication plugin
Feature: emqttd_broker to support Hooks API
Feature: issue #111 - Support 'Forced Subscriptions' by emqttd_mod_autosub module
Feature: issue #126 - Support 'Rewrite rules' by emqttd_mod_rewrite module
Improve: Support hooks, modules to extend the broker
Improve: issue #76 - dialyzer check
Improve: 'Get Started', 'User Guide', 'Developer Guide' Wiki
Improve: emqtt_topic to add join/1, feed_var/3, is_queue/1
Improve: emqttd_pooler to execute common tasks
Improve: add emqttd_sm_sup module, and use 'hash' gproc_pool to manage sessions
Tests: add more test cases for 'emqttd' app
# Version 0.7.1-alpha
Release Date: 2015-05-04
Add doc/design/_ and merge doc/_ to github Wiki
Bugfix: issue #121 - emqttd cluster issuse
Bugfix: issue #123 - emqttd:unload_all_plugins/0 cannot unload any plugin
Bugfix: fix errors found by dialyzer
# Version 0.7.0-alpha
Release Date: 2015-05-02
[MQTT over WebSocket(SSL)]( https://github.com/emqtt/emqttd/wiki/MQTT-Over-WebSocket (opens new window) ) Now!
[Plugin Achitecture]( https://github.com/emqtt/emqttd/wiki/Plugin%20Design (opens new window) ) based on OTP application
[Trace MQTT Packets or Messages]( https://github.com/emqtt/emqttd/wiki/Trace%20Design (opens new window) ) to log files
Feature: issue #40, #115 - WebSocket/SSL Support
Feature: issue #49, #105 - Plugin Architecture Support
Feature: issue #93 - Trace API Design
Improve: issue #109 - emqttd_broker should add subscribe, notify API
Improve: update README.md to add 'Goals', 'Contributors' chapters
Change: rename etc/app.config to etc/emqttd.config
Change: etc/emqttd.config changed
Bugfix: critical issue #54 - error when resume session!
Bugfix: issue #118 - error report when UNSUBSCRIBE with no topics
Bugfix: issue #117 - sys_interval = 0 config cannot work
Bugfix: issue #112 - Makefile to support build plugins
Bugfix: issue #96 - "make clean" cannot work
# Version 0.6.2-alpha
Release Date: 2015-04-24
Bugfix: critical issue #54, #104, #106 - error when resume session
Improve: add emqttd_cm_sup module, and use 'hash' gproc_pool to register/unregister client ids
Improve: kick old client out when session is duplicated.
Improve: move mnesia dir config from etc/app.config to etc/vm.args
# Version 0.6.1-alpha
Release Date: 2015-04-20
Integrate with [gproc library]( https://github.com/uwiger/gproc (opens new window) ) to support pool
Feature: issues#91 - should use worker_pool to handle some async work?
Feature: issues#95 - Topic filters in ACL rule should support 'eq' tag
Improve: issues#84 - emqttd_pubsub is redesigned again to protect mnesia transaction
Improve: issues#74 - ACL Support and update [ACL Design Wiki]( https://github.com/emqtt/emqttd/wiki/ACL-Design (opens new window) )
# Version 0.6.0-alpha
Release Date: 2015-04-17
ACL Support Now: [ACL-Design Wiki]( https://github.com/emqtt/emqttd/wiki/ACL-Design (opens new window) )
Authentication with username, clientid Now: [Authentication Wiki]( https://github.com/emqtt/emqttd/wiki/Authentication (opens new window) )
Seperate common MQTT library to 'emqtt' application
Redesign message pubsub, route and retain modules
Redesign mnesia database cluster
Feature: issues#47 - authentication, authorization support
Feature: issues#92 - merge emqttd_acl and emqttd_auth to emqttd_access_control
Feature: emqttd_acl_mod, emqttd_auth_mod behaviour to extend ACL, authentication
Feature: issues#85 - lager:info to log subscribe, unsubscribe actions
Feature: issues#77 - authentication with clientid, ipaddress
Improve: issues#90 - fix lager_file_backend log format, and rotate 10 log files
Improve: issues#88 - use '-mneisa_create', '-mnesia_replicate' attributes to init mneisa
Improve: issues#87 - record mqtt_user and mqtt_client is duplicated
Improve: issues#81 - redesign nodes cluster to support disc_copies mnesia tables
Improve: issues#80 - redesign emqttd_cm to handle more concurrent connections
Improve: issues#70 - how to handle connection flood? Now could support 2K+ CONNECT/sec
Change: redesign mnesia tables: message, topic, subscriber, trie, trie_node
Bugfix: issues#83 - emqttd_broker stats cannot work
Bugfix: issues#75 - careless about function name when emqttd_pubsub handle getstats message
# Version 0.5.5-beta
Release Date: 2015-04-09
Bugfix: issue #75 - careless about function name when emqttd_pubsub handle getstats message.
Bugfix: issue #79 - cannot find topic_subscriber table after cluster with other nodes.
# Version 0.5.4-alpha
Release Date: 2015-03-22
Benchmark this release on a ubuntu/14.04 server with 8 cores, 32G memory from QingCloud.com:
200K Connections,
30K Messages/Sec,
20Mbps In/Out Traffic,
200K Topics,
200K Subscribers,
Consumed 7G memory, 40% CPU/core
Benchmark code: https://github.com/emqtt/emqttd_benchmark (opens new window)
Change: rewrite emqttd_pubsub to handle more concurrent subscribe requests.
Change: ./bin/emqttd_ctl add 'stats', 'metrics' commands.
Bugfix: issue #71, #72
# Version 0.5.3-alpha
Release Date: 2015-03-19
Bugfix: issues#72 - emqttd_cm, emqtt_sm ets:match_delete/2 with wrong pattern
# Version 0.5.2-alpha
Release Date: 2015-03-18
Change: upgrade esockd to 2.1.0-alpha, do not tune socket buffer for mqtt connection.
# Version 0.5.1-alpha
Release Date: 2015-03-13
Change: upgrade esockd to v1.2.0-beta, rename 'acceptor_pool' to 'acceptors'
# Version 0.5.0-alpha
Release Date: 2015-03-12
RENAME 'emqtt' to 'emqttd'!
Support [Broker Bridge]( https://github.com/emqtt/emqttd/wiki/Bridge-Design (opens new window) ) Now!
Change: rename project from 'emqtt' to 'emqttd'
Change: lager:debug to dump RECV/SENT packets
Feature: emqttd_bridge, emqttd_bridge_sup to support broker bridge
Feature: emqtt_event to publish client connected/disconnected message to $SYS topics
Feature: ./bin/emqttd_ctl add more commands: listeners, broker, bridges, start_bridge, stop_bridge...
Feature: issue#57 - support to configure max packet size
Feature: issue#68 - if sys_interval = 0, emqttd_broker will not publish messages to $SYS/brokers/#
Bugfix: issue#67 - subscribe '#' to receive all messages
Bugfix: issue#64 - emqtt_app start/2: should wait_for_databases
Test: emqttd_topic_tests add more '_match_test'
# Version 0.4.0-alpha
Release Date: 2015-03-10
Support [$SYS Topics of Broker]( https://github.com/emqtt/emqttd/wiki/$SYS-Topics-of-Broker (opens new window) ) Now!
Feature: emqtt_broker to publish version, uptime, datetime to $SYS/brokers/# topics
Feature: emqtt_broker to publish count of clients, sessions, suscribers to $SYS/brokers/# topics
Feature: emqtt_metrics to publish bytes, packets, messages metrics to $SYS/brokers/# topics
Feature: add include/emqtt_systop.hrl
Change: emqtt_cm to count current clients
Change: emqtt_sm to count current sessions
Change: emqtt_pubsub to count current topics and suscribers
Change: emqtt_pubsub to add create/1 API
Change: emqtt_pubsub dispatch/2 to return number of subscribers
Change: emqtt_pubsub to count 'dropped' messages
Change: emqtt_opts to add merge/2 function
Test: add emqtt_serialiser_tests.erl
# Version 0.3.4-beta
Release Date: 2015-03-08
Bugfix: emqtt_serialiser.erl cannot serialise UNSUBACK packets
# Version 0.3.3-beta
Release Date: 2015-03-07
Bugfix: emqtt_serialiser.erl cannot serialise PINGRESP issue#60
# Version 0.3.2-beta
Release Date: 2015-03-05
Improve: merge emqttc serialiser, parser, packet
Add: emqtt_opts to merge socket options
# Version 0.3.1-beta
Release Date: 2015-03-02
Feature: SSL Socket Support
Feature: issue#44 HTTP API should add Qos parameter
Bugfix: issue#52 emqtt_session crash
Bugfix: issue#53 sslsocket keepalive error
Upgrade: esockd to v0.2.0
Upgrade: mochiweb to v3.0.0
# Version 0.3.0-beta
Release Date: 2015-01-19
Feature: HTTP POST API to support 'qos', 'retain' parameters
Feature: $SYS system topics support
Change: Rewrite emqtt_topic.erl, use '', '#', '+' to replace <<"">>, <<"#">>, <<"+">>
Change: fix emqtt_pubsub.erl to match '#', '+'
Tests: emqtt_topic_tests.erl add more test cases
# Version 0.3.0-alpha
Release Date: 2015-01-08
NOTICE: Full MQTT 3.1.1 support now!
Feature: Passed org.eclipse.paho.mqtt.testing/interoperability tests
Feature: Qos0, Qos1 and Qos2 publish and suscribe
Feature: session(clean_sess=false) management and offline messages
Feature: redeliver awaiting puback/pubrec messages(doc: Chapter 4.4)
Feature: retain messages, add emqtt_server module
Feature: MQTT 3.1.1 null client_id support
Bugfix: keepalive timeout to send will message
Improve: overlapping subscription support
Improve: add emqtt_packet:dump to dump packets
Test: passed org.eclipse.paho.mqtt.testing/interoperability
Test: simple cluster test
Closed Issues: #22, #24, #27, #28, #29, #30, #31, #32, #33, #34, #36, #37, #38, #39, #41, #42, #43
# Version 0.2.1-beta
Release Date: 2015-01-08
pull request 26: Use binaries for topic paths and fix wildcard topics
emqtt_pubsub.erl: fix wildcard topic match bug caused by binary topic in 0.2.0
Makefile: deps -> get-deps
rebar.config: fix mochiweb git url
tag emqtt release accoding to [Semantic Versioning]( http://semver.org/ (opens new window) )
max clientId length is 1024 now.
# Version 0.2.0
Release Date: 2014-12-07
rewrite the project, integrate with esockd, mochiweb
support MQTT 3.1.1
support HTTP to publish message
# Version 0.1.5
Release Date: 2013-01-05
Bugfix: remove QOS_1 match when handle PUBREL request
Bugfix: reverse word in emqtt_topic:words/1 function
# Version 0.1.4
Release Date: 2013-01-04
Bugfix: fix "mosquitto_sub -q 2 ......" bug
Bugfix: fix keep alive bug
# Version 0.1.3
Release Date: 2013-01-04
Feature: Support QOS2 PUBREC, PUBREL, PUBCOMP messages
Bugfix: fix emqtt_frame to encode/decoe PUBREC/PUBREL messages
# Version 0.1.2
Release Date: 2012-12-27
Feature: release support like riak
Bugfix: use ?INFO/?ERROR to print log in tcp_listener.erl
# Version 0.1.1
Release Date: 2012-09-24
Feature: use rebar to generate release
Feature: support retained messages
Bugfix: send will msg when network error
# Version 0.1.0
Release Date: 2012-09-21
The first public release.
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