Participant selection mechanism when implementing Java leader election using zookeeper.

2019-12-03 Thread Isuru Boyagane
I read about leader election using zookeeper. https://zookeeper.apache.org/doc/current/recipes.html#sc_leaderElection I have a small question ro ask. After a node creared "/election" node every node creates child nodes with sequential and ephemeral flags. In what condition nodes decide to

RE: java.lang.NullPointerException on some commands (stats, conf)

2019-12-03 Thread Mike Smotritsky
Hi Enrico, I'd really love to have 3.5.6 released with this fix in. (Thanks to Mate for the very quick fix!) Cause my my Solr cluster keeps complaining about the Zookeeper state. Thanks and Regards, Mike -Original Message- From: Enrico Olivelli [mailto:eolive...@gmail.com] Sent:

Re: java.lang.NullPointerException on some commands (stats, conf)

2019-12-03 Thread Enrico Olivelli
Mike, just to be clear: 'we can cut new releases from 3.5 branch' means that we are able to do it. But there are no plans to do it right now. If you need a release please let us know, we have just cut 3.5.6, there aren't so many changes cherry picked to branch-3.5 Enrico Il giorno lun 2 dic

Re: About ZooKeeper Dynamic Reconfiguration

2019-12-03 Thread Gao,Wei
Hi oo4load, I have a question which confuses me quite a long time. As is known to us all, ZK servers frequently take snapshots while processing requests. When a ZK server replays a snapshot which contains a transaction which has been executed before this snapshot, the transaction will be