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Posted to commits@cassandra.apache.org by "Caleb Rackliffe (Jira)" <ji...@apache.org> on 2020/09/03 23:27:00 UTC
[jira] [Updated] (CASSANDRA-15949) NPE thrown while updating
speculative execution time if table is removed during task execution
[ https://issues.apache.org/jira/browse/CASSANDRA-15949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Caleb Rackliffe updated CASSANDRA-15949:
----------------------------------------
Test and Documentation Plan:
- clean Circle run
- an additional test that provides guardrails around the Keyspace opening process (at least as it's used by the speculative retry threshold update task)
Status: Patch Available (was: In Progress)
[trunk|https://github.com/apache/cassandra/pull/733] [j8 tests|https://app.circleci.com/pipelines/github/maedhroz/cassandra/104/workflows/0c3ac115-3997-4b4b-82b7-994545961ecc] [j11 tests|https://app.circleci.com/pipelines/github/maedhroz/cassandra/104/workflows/9ed6d9f4-c9da-449e-b9de-0922169722e7]
> NPE thrown while updating speculative execution time if table is removed during task execution
> ----------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15949
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15949
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Other
> Reporter: Jon Meredith
> Assignee: Caleb Rackliffe
> Priority: Normal
> Fix For: 4.0-beta
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> CASSANDRA-14338 fixed the scheduling the speculation retry threshold calculation, but if the task happens to be scheduled while a table is being dropped, it triggers an NPE.
> ERROR 2020-07-14T11:34:55,762 [OptionalTasks:1] org.apache.cassandra.service.CassandraDaemon:446 - Exception in thread Thread[OptionalTasks:1,5,main]
> java.lang.NullPointerException: null
> at org.apache.cassandra.db.Keyspace.initCf(Keyspace.java:444) ~[cassandra-4.0.0.jar:4.0.0]
> at org.apache.cassandra.db.Keyspace.<init>(Keyspace.java:346) ~[cassandra-4.0.0.jar:4.0.0]
> at org.apache.cassandra.db.Keyspace.open(Keyspace.java:139) ~[cassandra-4.0.0.jar:4.0.0]
> at org.apache.cassandra.db.Keyspace.open(Keyspace.java:116) ~[cassandra-4.0.0.jar:4.0.0]
> at org.apache.cassandra.db.Keyspace$1.apply(Keyspace.java:102) ~[cassandra-4.0.0.jar:4.0.0]
> at org.apache.cassandra.db.Keyspace$1.apply(Keyspace.java:99) ~[cassandra-4.0.0.jar:4.0.0]
> at com.google.common.collect.Iterables$5.lambda$forEach$0(Iterables.java:704) ~[guava-27.0-jre.jar:?]
> at com.google.common.collect.IndexedImmutableSet.forEach(IndexedImmutableSet.java:45) ~[guava-27.0-jre.jar:?]
> at com.google.common.collect.Iterables$5.forEach(Iterables.java:704) ~[guava-27.0-jre.jar:?]
> at org.apache.cassandra.service.CassandraDaemon.lambda$setup$2(CassandraDaemon.java:412) ~[cassandra-4.0.0.jar:4.0.0]
> at org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor$UncomplainingRunnable.run(DebuggableScheduledThreadPoolExecutor.java:118) [cassandra-4.0.0.jar:4.0.0]
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) [?:?]
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) [?:?]
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) [?:?]
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
> at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [netty-all-4.1.37.Final.jar:4.1.37.Final]
> at java.lang.Thread.run(Thread.java:834) [?:?]
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