cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5555) Allow sstableloader to handle a larger number of files
Date Wed, 19 Jun 2013 16:17:21 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13688110#comment-13688110
] 

Jonathan Ellis commented on CASSANDRA-5555:
-------------------------------------------

We need to fix the issue Yuki raised before we can ship this.  This is going to take a bit
of work, so in the meantime I've reverted the original commit from 1.2 and will move this
ticket to 1.2.7.

In the meantime, I've created https://github.com/jbellis/cassandra/commits/5555-2 with the
memory reduction work (both IndexSummary and SegmentedFile) so Alex can continue to test that
aspect.
                
> Allow sstableloader to handle a larger number of files
> ------------------------------------------------------
>
>                 Key: CASSANDRA-5555
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5555
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core, Tools
>            Reporter: Tyler Hobbs
>            Assignee: Jonathan Ellis
>             Fix For: 1.2.6
>
>         Attachments: 5555-01.txt, 5555-02.txt, 5555-2.txt, cass_5555_pic_8.png, CASSANDRA-5555.txt,
CASSANDRA-5555.txt, CASSANDRA-5555.txt
>
>
> With the default heap size, sstableloader will OOM when there are roughly 25k files in
the directory to load.  It's easy to reach this number of files in a single LCS column family.
> By avoiding creating all SSTableReaders up front in SSTableLoader, we should be able
to increase the number of files that sstableloader can handle considerably.

--
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

Mime
View raw message