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https://issues.apache.org/jira/browse/CASSANDRA-10392?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15163309#comment-15163309
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T Jake Luciani commented on CASSANDRA-10392:
--------------------------------------------
I pushed a fix ( ExpiredTraceState was passing in null)
Tests run clean now. will commit.
[trunk
unittests|http://cassci.datastax.com/view/Dev/view/tjake/job/tjake-10392-tracing-testall/lastCompletedBuild/testReport/]
[trunk
dtests|http://cassci.datastax.com/view/Dev/view/tjake/job/tjake-10392-tracing-dtest/lastCompletedBuild/testReport/]
> Allow Cassandra to trace to custom tracing implementations
> -----------------------------------------------------------
>
> Key: CASSANDRA-10392
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10392
> Project: Cassandra
> Issue Type: Improvement
> Reporter: mck
> Assignee: mck
> Fix For: 3.x
>
> Attachments: 10392-trunk.txt, cassandra-dtest_master-10392.txt
>
>
> It can be possible to use an external tracing solution in Cassandra by
> abstracting out the writing of tracing to system_traces tables in the tracing
> package to separate implementation classes and leaving abstract classes in
> place that define the interface and behaviour otherwise of C* tracing.
> Then via a system property "cassandra.custom_tracing_class" the Tracing class
> implementation could be swapped out with something third party.
> An example of this is adding Zipkin tracing into Cassandra in the Summit
> [presentation|http://thelastpickle.com/files/2015-09-24-using-zipkin-for-full-stack-tracing-including-cassandra/presentation/tlp-reveal.js/tlp-cassandra-zipkin.html].
> Code for the implemented Zipkin plugin can be found at
> https://github.com/thelastpickle/cassandra-zipkin-tracing/
> In addition this patch passes the custom payload through into the tracing
> session allowing a third party tracing solution like Zipkin to do full-stack
> tracing from clients through and into Cassandra.
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