Tyler Hobbs created CASSANDRA-7626:
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Summary: Tracing problems with 2.1 cqlsh
Key: CASSANDRA-7626
URL: https://issues.apache.org/jira/browse/CASSANDRA-7626
Project: Cassandra
Issue Type: Bug
Components: Tools
Reporter: Tyler Hobbs
Assignee: Tyler Hobbs
Priority: Minor
Fix For: 2.1.0
If some replicas continue doing work after the coordinator responds to the
client (e.g. writing at CL.ONE with RF=3), those trace events will not have a
source_elapsed field, leading to the following error in cqlsh:
{noformat}
Traceback (most recent call last):
File "bin/cqlsh", line 822, in onecmd
self.handle_statement(st, statementtext)
File "bin/cqlsh", line 863, in handle_statement
return self.perform_statement(cqlruleset.cql_extract_orig(tokens, srcstr))
File "bin/cqlsh", line 898, in perform_statement
print_trace_session(self, self.session, stmt.trace.trace_id)
File "/srv/cassandra/bin/../pylib/cqlshlib/tracing.py", line 25, in
print_trace_session
rows = fetch_trace_session(trace)
File "/srv/cassandra/bin/../pylib/cqlshlib/tracing.py", line 54, in
fetch_trace_session
event.source_elapsed.microseconds])
AttributeError: 'NoneType' object has no attribute 'microseconds'
{noformat}
If the trace wasn't fully written within the driver's 2 second waiting period,
you'll get this error:
{noformat}
Traceback (most recent call last):
File "bin/cqlsh", line 822, in onecmd
self.handle_statement(st, statementtext)
File "bin/cqlsh", line 863, in handle_statement
return self.perform_statement(cqlruleset.cql_extract_orig(tokens, srcstr))
File "bin/cqlsh", line 898, in perform_statement
print_trace_session(self, self.session, stmt.trace.trace_id)
AttributeError: 'NoneType' object has no attribute 'trace_id'
{noformat}
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