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Adam Holmberg edited comment on CASSANDRA-7645 at 10/22/15 4:09 PM:
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Also, the fallback mechanism (show_session) uses the same QueryTrace.populate mechanism to
query the trace, but with a max_wait of 2.0 seconds. We would need to bypass that if we really
want to see a partial trace.
was (Author: aholmber):
Also, the fallback mechanism `show_session` uses the same QueryTrace.populate mechanism to
query the trace, but with a max_wait of 2.0 seconds. We would need to bypass that if we really
want to see a partial trace.
> cqlsh: show partial trace if incomplete after max_trace_wait
> ------------------------------------------------------------
>
> Key: CASSANDRA-7645
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7645
> Project: Cassandra
> Issue Type: Improvement
> Components: Tools
> Reporter: Tyler Hobbs
> Assignee: Carl Yeksigian
> Priority: Trivial
> Fix For: 3.0.0 rc2, 2.2.4, 2.1.12
>
>
> If a trace hasn't completed within {{max_trace_wait}}, cqlsh will say the trace is unavailable
and not show anything. It (and the underlying python driver) determines when the trace is
complete by checking if the {{duration}} column in {{system_traces.sessions}} is non-null.
If {{duration}} is null but we still have some trace events when the timeout is hit, cqlsh
should print whatever trace events we have along with a warning about it being incomplete.
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