Opentracing minimal changes for processors#37837
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nikitamikhaylov merged 5 commits intoClickHouse:masterfrom Jun 9, 2022
Merged
Opentracing minimal changes for processors#37837nikitamikhaylov merged 5 commits intoClickHouse:masterfrom
nikitamikhaylov merged 5 commits intoClickHouse:masterfrom
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@Mergifyio update |
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@Mergifyio update |
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@tavplubix can you tell that this changes are (not) related to this issue #37920? |
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Most likely it's not related |
nikitamikhaylov
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Jun 9, 2022
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| bool ExecutionThreadContext::executeTask() | ||
| { | ||
| OpenTelemetrySpanHolder span("ExecutionThreadContext::executeTask() " + node->processor->getName()); |
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Seems like it creates too many spans, so 00974_query_profiler sometimes fail with
<Error> SystemLog (system.opentelemetry_span_log): Queue is full for system log 'DB::OpenTelemetrySpanLog' at 955525
Example: https://s3.amazonaws.com/clickhouse-test-reports/0/e13dc23d344454ecda401df4b23b696a691421fe/stateless_tests__release__databaseordinary__actions_.html
More failures: https://play.clickhouse.com/play?user=play#c2VsZWN0IAp0b1N0YXJ0T2ZEYXkoY2hlY2tfc3RhcnRfdGltZSkgYXMgZCwKY291bnQoKSwgZ3JvdXBVbmlxQXJyYXkocHVsbF9yZXF1ZXN0X251bWJlciksICBhbnkocmVwb3J0X3VybCkKZnJvbSBjaGVja3Mgd2hlcmUgJzIwMjItMDQtMDEnIDw9IGNoZWNrX3N0YXJ0X3RpbWUgYW5kIHRlc3RfbmFtZSBsaWtlICclMDA5NzRfcXVlcnlfcHJvZmlsZXIlJyBhbmQgdGVzdF9zdGF0dXMgaW4gKCdGQUlMJywgJ0ZMQUtZJykgZ3JvdXAgYnkgZCBvcmRlciBieSBkIGRlc2M=
@qoega, should we revert it?
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not all of them. Probably some.
Too many spans is not the reason we have sanitiser alerts. For 00974_query_profiler we better just disable opentelemetry_span_log with 'set opentelemetry_start_trace_probability=1'. It is enabled there by random settings fuzzer.
I will build asan debug build and will try to reproduce sanitiser alert.
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Too many spans is not the reason we have sanitiser alerts.
Yes, most likely it's two independent issues.
For 00974_query_profiler we better just disable opentelemetry_span_log with 'set opentelemetry_start_trace_probability=1'.
Are you sure that it will not produce to many spans in a production environment?
This was referenced Jun 16, 2022
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Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):
Instead of #37186