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https://issues.apache.org/jira/browse/ZOOKEEPER-4535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17531741#comment-17531741
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Christopher Tubbs commented on ZOOKEEPER-4535:
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The difference between apache-zookeeper-3.8.0.tar.gz and
apache-zookeeper-3.8.0-bin.tar.gz is that the first is the source tarball. The
Apache Software Foundation produces open source software. Our official releases
are source artifacts, and contain source code only. It should not contain any
jars. Projects may also release binary distributions for convenience. This is
what the second tarball is. It contains a build of the source code into
executable artifacts.
As for log4j1 vs. logback, please see the release notes:
https://zookeeper.apache.org/doc/current/releasenotes.html for full details of
changes, but the summary is that log4j1 and some versions of log4j2 have CVEs.
A decision was made to migrate from log4j1 to logback instead of log4j2. This
is because logback was smaller and easier to use for some tests, and in some
developers' opinions, less risky than log4j2. However, since ZooKeeper uses
slf4j as its logging facade, and only uses logback as a runtime implementation,
you are free to replace logback with log4j2 or another runtime backend that
works with slf4j. This option is left to you, as the user, to decide in your
deployment.
Since these questions don't represent any actual bugs or issues to track, and
the questions have been answered, I'm closing this issue. If you have further
questions, I encourage you to read the release notes, or other documentation on
the website, or ask questions on the user mailing list, whose subscription
information you can find at https://zookeeper.apache.org/lists.html
-Christopher
> Zookeeper 3.8.0, while starting the service got error
> -----------------------------------------------------
>
> Key: ZOOKEEPER-4535
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4535
> Project: ZooKeeper
> Issue Type: Bug
> Reporter: Dilip anand
> Priority: Major
>
> Hi,
> Zookeeper 3.8.0, while starting the service got error and looks like it
> required zookeeper-3.8.0.jar file which is not available with
> apache-zookeeper-3.8.0.tar.gz.
>
>
> Error: Could not find or load main class
> org.apache.zookeeper.server.quorum.QuorumPeerMain
>
>
> regards,
> Dilip
>
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