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Posted to commits@cassandra.apache.org by "Joshua McKenzie (JIRA)" <ji...@apache.org> on 2014/05/01 01:58:16 UTC
[jira] [Commented] (CASSANDRA-3668) Parallel streaming for
sstableloader
[ https://issues.apache.org/jira/browse/CASSANDRA-3668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13986225#comment-13986225 ]
Joshua McKenzie commented on CASSANDRA-3668:
--------------------------------------------
Looks good - I went back and forth between re-using those data structures in the StreamCoordinator vs. limiting its scope to the StreamResultFuture only during implementation. While this approach has a touch of duplication to it I think it's fine in order to keep the scope limited.
Test of v3 looks good. I'm getting some NPE's from SSTableReader.scheduleTidy closing up IndexSummaries but I don't think that has anything to do with this patch.
+1
> Parallel streaming for sstableloader
> ------------------------------------
>
> Key: CASSANDRA-3668
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3668
> Project: Cassandra
> Issue Type: Improvement
> Components: API
> Reporter: Manish Zope
> Assignee: Joshua McKenzie
> Priority: Minor
> Labels: streaming
> Fix For: 2.1 rc1
>
> Attachments: 3668-1.1-v2.txt, 3668-1.1.txt, 3668-v3.txt, 3668_v2.txt, 3688-reply_before_closing_writer.txt, sstable-loader performance.txt
>
> Original Estimate: 48h
> Remaining Estimate: 48h
>
> One of my colleague had reported the bug regarding the degraded performance of the sstable generator and sstable loader.
> ISSUE :- https://issues.apache.org/jira/browse/CASSANDRA-3589
> As stated in above issue generator performance is rectified but performance of the sstableloader is still an issue.
> 3589 is marked as duplicate of 3618.Both issues shows resolved status.But the problem with sstableloader still exists.
> So opening other issue so that sstbleloader problem should not go unnoticed.
> FYI : We have tested the generator part with the patch given in 3589.Its Working fine.
> Please let us know if you guys require further inputs from our side.
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