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release-23.1.9-rc: fix flakes inside TestRandomSyntaxFunctions #108996

Merged
merged 4 commits into from
Aug 22, 2023
Merged

release-23.1.9-rc: fix flakes inside TestRandomSyntaxFunctions #108996

merged 4 commits into from
Aug 22, 2023

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fqazi
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@fqazi fqazi commented Aug 18, 2023

Backport:

Please see individual PRs for details.

/cc @cockroachdb/release

Release justification: low risk fixes to get testing stable

Fixes: #108650

fqazi added 4 commits August 18, 2023 10:33
@fqazi
sql: revalidate_unique_constraints_in_all_tables check for cancellation
168b2b8 
Previously, the function: revalidate_unique_constraints_in_all_tables
did not properly check for cancellation when looping over all
descriptors. This could just lead to a delayed cancellation or
timeouts in tests. To address this, this patch updates
the logic to check for cancellations while loop over
descriptors.

Fixes: cockroachdb#107410, cockroachdb#107411

Release note: None
@fqazi
sql: TestRandomSyntaxFunctions skip crdb_internal.gen_rand_ident
679cde5 
Previously, the TestRandomSyntaxFunctions could invoke
crdb_internal.gen_rand_ident with random arguments,
which could be giant number of random identifiers.
To address this, this patch will avoid validating
this function.

Release note: None
@fqazi
sql: TestRandomSyntaxFunctions skip schema telemetry job function
3fa2769 
Previously, this test could depending on the concurrency,
could spawn a large number of schema telemetry jobs via
(ctdb_internal.create_sql_schema_telemetry_job).
This could lead to contention that will eventually
cause this test to time out. To address this, this
patch limits calling the telemetry job creation function.

Fixes: cockroachdb#108153

Release note: None
@fqazi
sql: fix use of span after finish in CREATE STATISTICS
b957951 
Previously, the code for creating and waiting for the
job inside CREATE STATISTICs had a race condition, where
we could end up using context after a tracing span was
cleaned up on it. To address this, this patch adjusts
the code to wait for a go routine to clean up before,
returning and allowing the span to clean up.

Epic: none

Release note: None
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blathers-crl bot commented Aug 18, 2023

Thanks for opening a backport.

Please check the backport criteria before merging:

  • Patches should only be created for serious issues or test-only changes.
  • Patches should not break backwards-compatibility.
  • Patches should change as little code as possible.
  • Patches should not change on-disk formats or node communication protocols.
  • Patches should not add new functionality.
  • Patches must not add, edit, or otherwise modify cluster versions; or add version gates.
If some of the basic criteria cannot be satisfied, ensure that the exceptional criteria are satisfied within.
  • There is a high priority need for the functionality that cannot wait until the next release and is difficult to address in another way.
  • The new functionality is additive-only and only runs for clusters which have specifically “opted in” to it (e.g. by a cluster setting).
  • New code is protected by a conditional check that is trivial to verify and ensures that it only runs for opt-in clusters.
  • The PM and TL on the team that owns the changed code have signed off that the change obeys the above rules.

Add a brief release justification to the body of your PR to justify this backport.

Some other things to consider:

  • What did we do to ensure that a user that doesn’t know & care about this backport, has no idea that it happened?
  • Will this work in a cluster of mixed patch versions? Did we test that?
  • If a user upgrades a patch version, uses this feature, and then downgrades, what happens?

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@michae2
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michae2 commented Aug 18, 2023

I think we should hold off on merging this until #109007 is fixed.

@fqazi fqazi marked this pull request as ready for review August 21, 2023 20:27
@fqazi fqazi requested review from a team as code owners August 21, 2023 20:27
rafiss
rafiss approved these changes Aug 22, 2023
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lgtm, but we will want #109029 too

@fqazi fqazi merged commit a5cf688 into cockroachdb:release-23.1.9-rc Aug 22, 2023
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4 participants
@fqazi @cockroach-teamcity @michae2 @rafiss