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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (JIRA)" <ji...@apache.org> on 2011/07/21 10:56:58 UTC
[jira] [Updated] (CASSANDRA-2521) Move away from Phantom References
for Compaction/Memtable
[ https://issues.apache.org/jira/browse/CASSANDRA-2521?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylvain Lebresne updated CASSANDRA-2521:
----------------------------------------
Attachment: 2521-v5.patch
Attaching v5. It is rebased and now all unit tests are passing. It also adds a few requested comments and only triggers GC for disk space when that could possibly be useful (i.e, when mmap is used on a non sun jvm (more precisely, if the mmap "cleaner" is not available)).
Will commmit this based on earlier +1 and on Terje successful testing (thanks a lot for that btw).
> Move away from Phantom References for Compaction/Memtable
> ---------------------------------------------------------
>
> Key: CASSANDRA-2521
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2521
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Chris Goffinet
> Assignee: Sylvain Lebresne
> Fix For: 1.0
>
> Attachments: 0001-Use-reference-counting-to-decide-when-a-sstable-can-.patch, 0001-Use-reference-counting-to-decide-when-a-sstable-can-v2.patch, 0002-Force-unmapping-files-before-deletion-v2.patch, 2521-v3.txt, 2521-v4.txt, 2521-v5.patch
>
>
> http://wiki.apache.org/cassandra/MemtableSSTable
> Let's move to using reference counting instead of relying on GC to be called in StorageService.
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