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Posted to commits@cassandra.apache.org by "Jeremiah Jordan (JIRA)" <ji...@apache.org> on 2014/07/10 23:52:05 UTC
[jira] [Created] (CASSANDRA-7533) Let MAX_OUTSTANDING_REPLAY_COUNT
be configurable
Jeremiah Jordan created CASSANDRA-7533:
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Summary: Let MAX_OUTSTANDING_REPLAY_COUNT be configurable
Key: CASSANDRA-7533
URL: https://issues.apache.org/jira/browse/CASSANDRA-7533
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Jeremiah Jordan
Assignee: Yuki Morishita
Priority: Minor
Fix For: 2.0.10
There are some workloads where commit log replay will run into contention issues with multiple things updating the same partition. Through some testing it was found that lowering CommitLogReplayer.java MAX_OUTSTANDING_REPLAY_COUNT can help with this issue.
The calculations added in CASSANDRA-6655 are one such place things get bottlenecked.
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