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From "T Jake Luciani (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-10392) Allow Cassandra to trace to custom tracing implementations
Date Mon, 22 Feb 2016 21:34:18 GMT


T Jake Luciani commented on CASSANDRA-10392:

I ran the utests and dtests against cassci

[trunk unittests|]
[trunk dtests|]

There is one related failing dtest the materialized view one.

{code} - Exception in thread Thread[MessagingService-Incoming-/,5,main]\njava.lang.AssertionError:
null\n\tat org.apache.cassandra.tracing.TraceState.<init>( ~[main/:na]\n\tat
org.apache.cassandra.tracing.ExpiredTraceState.<init>( ~[main/:na]\n\tat
org.apache.cassandra.tracing.Tracing.initializeFromMessage( ~[main/:na]\n\tat ~[main/:na]\n\tat

> Allow Cassandra to trace to custom tracing implementations 
> -----------------------------------------------------------
>                 Key: CASSANDRA-10392
>                 URL:
>             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|].
Code for the implemented Zipkin plugin can be found at
> 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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