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https://issues.apache.org/jira/browse/CASSANDRA-12155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15368977#comment-15368977
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Wei Deng commented on CASSANDRA-12155:
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[trunk|https://github.com/weideng1/cassandra/commit/aeebd734c42643ec3554751ca4bb7278e5f77cef]
As it's just a log level change, not sure if we need CI.
> proposeCallback.java is too spammy for debug.log
> ------------------------------------------------
>
> Key: CASSANDRA-12155
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12155
> Project: Cassandra
> Issue Type: Bug
> Components: Observability
> Reporter: Wei Deng
> Priority: Minor
>
> As stated in [this wiki
> page|https://wiki.apache.org/cassandra/LoggingGuidelines] derived from the
> work on CASSANDRA-10241, the DEBUG level logging in debug.log is intended for
> "+low frequency state changes or message passing. Non-critical path logs on
> operation details, performance measurements or general troubleshooting
> information.+"
> However, it appears that in a production deployment of C* 3.x, the LWT
> message passing from ProposeCallback.java gets printed every 1-2 seconds,
> which overwhelms debug.log from presenting the other important DEBUG level
> logging messages, like the following:
> {noformat}
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:23:57,800 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:00,803 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:00,804 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:03,807 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:03,807 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:06,811 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:06,811 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:09,815 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:09,815 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:12,819 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:12,819 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:15,823 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:15,823 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:18,827 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:18,827 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:21,831 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:21,831 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:24,835 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:24,835 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:27,839 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:27,839 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:30,843 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:30,843 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:33,847 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:33,847 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:36,851 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:36,852 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:39,855 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:39,855 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:42,859 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:42,859 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:45,864 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:45,864 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:48,867 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:48,867 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:51,871 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:51,871 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:54,875 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:54,876 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:24:57,880 ProposeCallback.java:62
> - Propose response true from /10.240.0.3
> DEBUG [SharedPool-Worker-2] 2016-07-09 05:24:57,880 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> DEBUG [SharedPool-Worker-1] 2016-07-09 05:25:00,884 ProposeCallback.java:62
> - Propose response true from /10.240.0.2
> {noformat}
> It should be a really trivial change to drop it down to TRACE level to avoid
> the spammy behavior.
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