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https://issues.apache.org/jira/browse/ZOOKEEPER-3108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16566504#comment-16566504
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Tamas Penzes commented on ZOOKEEPER-3108:
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I mostly find it good to separate application level configuration (in this case
configs in zoo.cfg) from instance level configuration like myid file.
Of course if you use an orchestration tool like Ansible, Chef, etc. or a
configuration management (provisioning, managing, monitoring) tool like
Cloudera Manager or Apache Ambari and you automatically regenerate your configs
it might not look important, but it still doesn't hurt.
> deprecated myid file and use a new property "server.id" in the zoo.cfg
> -----------------------------------------------------------------------
>
> Key: ZOOKEEPER-3108
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3108
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.5.0
> Reporter: maoling
> Assignee: maoling
> Priority: Major
>
> When use zk in distributional model,we need to touch a myid file in
> dataDir.then write a unique number to it.It is inconvenient and not
> user-friendly,Look at an example from other distribution system such as
> kafka:it just uses broker.id=0 in the server.properties to indentify a unique
> server node.This issue is going to abandon the myid file and use a new
> property such as server.id=0 in the zoo.cfg. this fix will be applied to
> master branch,branch-3.5+,
> keep branch-3.4 unchaged.
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