You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@cassandra.apache.org by "Oleg Anastasyev (JIRA)" <ji...@apache.org> on 2013/09/23 13:22:02 UTC
[jira] [Created] (CASSANDRA-6079) Memtables flush is delayed when
having a lot of batchlog activity, making node OOM
Oleg Anastasyev created CASSANDRA-6079:
------------------------------------------
Summary: Memtables flush is delayed when having a lot of batchlog activity, making node OOM
Key: CASSANDRA-6079
URL: https://issues.apache.org/jira/browse/CASSANDRA-6079
Project: Cassandra
Issue Type: Bug
Reporter: Oleg Anastasyev
Attachments: NoWaitBatchlogCompaction.diff
Both MeteredFlusher and BatchlogManager share the same OptionalTasks thread. So, when batchlog manager processes its tasks no flushes can occur. Even more, batchlog manager waits for batchlog CF compaction to finish.
On a lot of batchlog activity this prevents memtables from flush for a long time, making the node OOM.
Fixed this by moving batchlog to its own thread and not waiting for batchlog compaction to finish.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira