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https://issues.apache.org/jira/browse/ZOOKEEPER-912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928342#action_12928342
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John L. Singleton commented on ZOOKEEPER-912:
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If I could weigh in on this one too:
"What's your rule of thumb for what should be logged at the various levels?"
IMO:
WARN: Recoverable errors
ERROR: Non-recoverable errors
INFO: Non error conditions pertaining operation, eg, for a SERVER side program,
tell me that someone connected, but don't give me all the details about session
establishment, etc. For a CLIENT side program, all these details should be
omitted.
TRACE: Information used for extended debugging, suitable for
developers/contributors
DEBUG: Information used for basic debugging, suitable for end users
> ZooKeeper client logs trace and debug messages at level INFO
> ------------------------------------------------------------
>
> Key: ZOOKEEPER-912
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-912
> Project: Zookeeper
> Issue Type: Improvement
> Components: java client
> Affects Versions: 3.3.1
> Reporter: Anthony Urso
> Assignee: Anthony Urso
> Priority: Minor
> Fix For: 3.4.0
>
> Attachments: zk-loglevel.patch
>
>
> ZK logs a lot of uninformative trace and debug messages to level INFO. This
> fuzzes up everything and makes it easy to miss useful log info.
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