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From "John L. Singleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (ZOOKEEPER-912) ZooKeeper client logs trace and debug messages at level INFO
Date Thu, 04 Nov 2010 20:40:42 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928342#action_12928342
] 

John L. Singleton commented on ZOOKEEPER-912:
---------------------------------------------

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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