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https://issues.apache.org/jira/browse/ZOOKEEPER-3725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mate Szalay-Beko resolved ZOOKEEPER-3725.
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Resolution: Duplicate
I resolve this ticket, the patch in ZOOKEEPER-2164 will fix this.
> Zookeeper fails to establish quorum with 2 servers using 3.5.6
> --------------------------------------------------------------
>
> Key: ZOOKEEPER-3725
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3725
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.5.6
> Reporter: Antoine DESSAIGNE
> Assignee: Mate Szalay-Beko
> Priority: Major
> Attachments: failure-3.5.6.txt, success-3.4.14.txt, success-3.5.6.txt
>
>
> Hello everyone,
> We noticed that with Zookeeper 3.5.6, it fails to establish quorum on a new
> deployment on a regular basis (approx 50% of the time)
> We were able to reduce the reproduction steps to the bare minimum we could.
> Consider the following docker-compose.yml file
> {noformat}
> version: '2'
> services:
> orchestrator1.cameltest.int:
> image: zookeeper:3.5.6
> environment:
> ZOO_MY_ID: 1
> ZOO_SERVERS: server.1=0.0.0.0:2888:3888
> server.2=orchestrator2.cameltest.int:2888:3888
> orchestrator2.cameltest.int:
> image: zookeeper:3.5.6
> environment:
> ZOO_MY_ID: 2
> ZOO_SERVERS: server.1=orchestrator1.cameltest.int:2888:3888
> server.2=0.0.0.0:2888:3888
> {noformat}
> When launching a brand new cluster with it (with {{docker-compose up}}, no
> previous data) it fails half of the time with 3.5.6 and never in 3.4.14.
> You'll find attached 3 logs:
> * a failure one using 3.5.6
> * a success one using 3.5.6
> * a success one 3.4.14
> I don't think it's related to some docker/docker-compose issue (as it's
> working using 3.4.14 on the same server)
> I'll try to check each intermediate release to pin a more specific version.
> Unfortunately, I don't know yet my way in the Zookeeper code, what can I do
> to help? Thanks!
> PS: Yes, it's strange to have 2 servers as they're both required to work, but
> it's the smallest repro-case
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