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https://issues.apache.org/jira/browse/ZOOKEEPER-2342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15049766#comment-15049766
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Chris Nauroth commented on ZOOKEEPER-2342:
------------------------------------------
To reproduce the issue, run {{ant clean tar}} on the tip of current trunk,
unpack the distro, copy zoo_sample.cfg to zoo.cfg, and then run it. Both
{{zkServer.sh start-foreground}} and {{zkCli.sh}} will show this error:
{code}
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
details.
{code}
There will be no additional logging after that.
> ZooKeeper cannot write logs, because there is no SLF4J binding available on
> the runtime classpath.
> --------------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-2342
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2342
> Project: ZooKeeper
> Issue Type: Bug
> Reporter: Chris Nauroth
> Priority: Blocker
> Fix For: 3.5.2, 3.6.0
>
>
> ZOOKEEPER-1371 removed our source code dependency on Log4J. It appears that
> this also removed the Log4J SLF4J binding jar from the runtime classpath.
> Without any SLF4J binding jar available on the runtime classpath, the it is
> impossible to write logs.
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