[ https://issues.apache.org/jira/browse/CASSANDRA-16274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sam Tunnicliffe updated CASSANDRA-16274: ---------------------------------------- Status: Changes Suggested (was: Review In Progress) Overall LGTM, just a couple of minor things and a couple of nits from me: * the {{Comparator}} in {{ReduceHelper::pickConsistent}} can be static * typo in the comment for {{RepairJobTest::testOptimizedCreateStandardSyncTasks}}, "{{addr1 or addr3}}" should be "{{addr1 or addr2}}". * shouldn't that same test verify that {{ReduceHelper::pickConsistent}} makes the selections deterministic? So not use {{assertStreamRangeFromEither}}? Nits: * Alignment of params in {{ReduceHelper::pickConsistent}} is off * the debug/progress output in {{OptimiseStreamsTest::randomTest}} is meaningless, unless the initial insert should actually be much more than 10k rows. * {{RepairJobTest}} is the only place where we spell optimize with a z, everywhere else uses an s, though this isn't new in this patch. > Improve performance when calculating StreamTasks with optimised streaming > ------------------------------------------------------------------------- > > Key: CASSANDRA-16274 > URL: https://issues.apache.org/jira/browse/CASSANDRA-16274 > Project: Cassandra > Issue Type: Improvement > Components: Consistency/Repair > Reporter: Marcus Eriksson > Assignee: Marcus Eriksson > Priority: Normal > Fix For: 4.0-beta4 > > > The way stream tasks are calculated currently is quite inefficient, improve > that. > Also, we currently try to distribute the streaming nodes evenly, this creates > many more sstables than necessary - instead we should try to stream > everything from a single peer, this should reduce the number of sstables > created on the out-of-sync node. -- 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