[MDEV-24232] perfschema.nesting fails with result diff when WITH_WSREP=OFF Created: 2020-11-17  Updated: 2021-05-25

Status: Confirmed
Project: MariaDB Server
Component/s: Locking, Performance Schema, wsrep
Affects Version/s: 10.4, 10.5, 10.6
Fix Version/s: 10.4, 10.5

Type: Bug Priority: Major
Reporter: Marko Mäkelä Assignee: Oleksandr Byelkin
Resolution: Unresolved Votes: 0
Labels: galera_4, not-10.3, performance, performance_schema


 Description   

The test perfschema.nesting is failing with a result difference if the server has been built cmake -DWITH_WSREP=OFF. These differences seem to be specific to MariaDB 10.4 and later. In 10.3, the result is unaffected by WSREP changes.

One difference seems to be that WITH_WSREP=ON is causing extra operations on LOCK_thd_mutex.

Note: The test is disabled on Windows. We do not seem to have a builder that repeats the problem on 10.4. On 10.5, the builder 32bit-ubuntu-1804 is constantly failing due to this bug.



 Comments   
Comment by Marko Mäkelä [ 2020-11-17 ]

I pushed a work-around for this bug (skipping the test if WITH_WSREP=OFF) to avoid test failures.

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