John L. Singleton commented on ZOOKEEPER-912:

Hi Patrick and Anthony,

If I may comment on this issue, I have recently had problems with Zookeeper and 
the verbosity of it's default logging. My problem is that a) the default 
logging is really too verbose in general and that b) including Zookeeper in 
your classpath causes Zookeeper's log4j.xml file to override established 
logging. To get around this I've actually had to repackage the zk jar without 
log4j.xml to tone down the logging.

Now, as for the issue above, I agree that most of those messages, if they are 
used for "debugging" they really need to be at the DEBUG level, not INFO. 

Love ZK! Keep up the good work!


> 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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