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Posted to commits@cassandra.apache.org by "Joshua McKenzie (JIRA)" <ji...@apache.org> on 2015/09/29 22:08:04 UTC
[jira] [Resolved] (CASSANDRA-8271) Remove SSTableDeletingTask
[ https://issues.apache.org/jira/browse/CASSANDRA-8271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joshua McKenzie resolved CASSANDRA-8271.
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Resolution: Later
Fix Version/s: (was: 3.x)
W/the changes from CASSANDRA-7066, CASSANDRA-9658, and finally CASSANDRA-10222, removing the various recurring deletion tasks isn't going to be viable until CASSANDRA-5863 (or some other buffered vs. mmap parity) comes through.
Closing as later pending those efforts.
> Remove SSTableDeletingTask
> --------------------------
>
> Key: CASSANDRA-8271
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8271
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Joshua McKenzie
> Assignee: Joshua McKenzie
> Priority: Minor
>
> With CASSANDRA-4050 and CASSANDRA-6993, our out-of-order deletion problems w/regards to Windows are resolved and the only outstanding reason to have SSTableDeletingTask would be for support of non-sun VM's w/regards to mmap'ed files. As this is no longer a big concern in the Cassandra ecosystem (non-sun VM's), we should remove SSTableDeletingTask.
> The one caveat is that if we want to revisit mmap'ed I/O on Windows in the future we may need to re-use this type of "delayed deletion" approach due to Windows not allowing deletion of hard linked files w/memory-mapped segments in the original file, but CASSANDRA-5863 would obviate that concern.
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