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Ekaterina Dimitrova edited comment on CASSANDRA-16210 at 10/16/20, 3:55 AM: ---------------------------------------------------------------------------- The issue is, it was possible to open a new Keyspace instance in the middle of Schema.dropKeyspace(). To see the problem the drop has to progress to the following [state|https://github.com/apache/cassandra/blob/cassandra-3.11/src/java/org/apache/cassandra/config/Schema.java#L657]: 1) Keyspace instance doesn't exist - it has been already removed. 2) KeyspaceMetadata still exists Keyspace.open in this state creates a new Keyspace instance (with ColumnFamilyStore instances) and stores it in Schema.keyspaceInstances. This is an object leak. [3.11 |https://github.com/ekaterinadimitrova2/cassandra/pull/59] CI run: [Java8 | https://jenkins-cm4.apache.org/job/Cassandra-devbranch/104/#showFailuresLink] [4.0 | https://github.com/ekaterinadimitrova2/cassandra/pull/62] CI run: [Java 8 | https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/414/workflows/9d0905bd-6ca6-480a-862b-35d5842ed5ef] | [Java 11 | https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/414/workflows/9476a603-a494-4da3-bf69-9498d40ae29a] was (Author: e.dimitrova): It turned out the issue is already solved for 4.0 with CASSANDRA-9425 Posting patch for [3.11 | https://github.com/ekaterinadimitrova2/cassandra/pull/59] CI run: [Java8 | https://jenkins-cm4.apache.org/job/Cassandra-devbranch/104/#showFailuresLink] > Synchronize Keyspace instance store/clear > ----------------------------------------- > > Key: CASSANDRA-16210 > URL: https://issues.apache.org/jira/browse/CASSANDRA-16210 > Project: Cassandra > Issue Type: Bug > Components: Cluster/Schema > Reporter: Ekaterina Dimitrova > Assignee: Ekaterina Dimitrova > Priority: Normal > Fix For: 3.11.x > > > DTest failure: > dtest-large.repair_tests.repair_test.TestRepairDataSystemTable.test_repair_table > (vnodes) - one random failure was reported which pointed to a race condition > to be spotted. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org