Github user longdafeng commented on the pull request:
https://github.com/apache/storm/pull/354#issuecomment-85033376
@ptgoetz @revans2 @Parth-Brahmbhatt,
Sorry for late discuss the HA desgin.
Strongly recommend using JStorm's Nimbus HA Design. It is pretty stable.
JStorm's Nimbus HA has been released for one year and has been approved stable.
The logic is very simple. The code less 1000 lines.
1. Every nimbus will try to own the znode /nimbus_master, the winner will
be the nimbus's master. Slaves will watch and timely check the znode, once it
disappear, slaves will try to own it. During slaves check the znode, it will
sync binary from master.
2. All client API firstly connection ZK and get to know who are the nimbus
Master.
(1) The core code in nimbus:
https://github.com/alibaba/jstorm/blob/master/jstorm-server/src/main/java/com/alibaba/jstorm/schedule/FollowerRunnable.java
(2) How to find the master of nimbus:
https://github.com/alibaba/jstorm/blob/master/jstorm-client/src/main/java/backtype/storm/security/auth/ThriftClient.java
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