[CASSANDRA-12664] GCCompactionTest is flaky

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 3.10
• Component/s: Legacy/Local Write-Read Paths
• Severity: Low
• Assignee: Branimir Lambov
• Reporter: Stefania Alborghetti

Authors

Branimir Lambov

Reviewers

Stefania Alborghetti

• Created: 19/Sep/16 02:27
• Updated: 16/Apr/19 09:30
• Resolved: 25/Jan/17 08:39

Description

GCCompactionTest was introduced by CASSANDRA-7019 and appears to be flaky, see for example here.

I think it's the same root cause as CASSANDRA-12282: the tables in the test keyspace are dropped asynchronously after each test, and this might cause additional flush operations for all dirty tables in the keyspace. See the callstack in 12282.

A possible solution is to use KEYSPACE_PER_TEST, which is instead dropped synchronously.

Issue Links

• is duplicated by: CASSANDRA-13014 testall failure in org.apache.cassandra.cql3.GcCompactionTest.testGcCompactionPartitions-compression
• is related to: CASSANDRA-7019 Improve tombstone compactions