[jira] Updated: (CASSANDRA-436) OOM during major compaction on many (hundreds) of sstables

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-436:
-------------------------------------

    Attachment: 0004-Replace-PriorityQueue-mess-with-a-CompactionIterator-t.txt
                0003-allow-ReducingIterator-to-reduce-from-one-type-to-a-di.txt
                0002-copy-FileStruct-to-SSTableScanner-and-remove-cruft.-M.txt
                0001-CASSANDRA-436-minor-fixes.txt

> OOM during major compaction on many (hundreds) of sstables
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-436
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-436
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>             Fix For: 0.5
>
>         Attachments: 0001-CASSANDRA-436-minor-fixes.txt, 0002-copy-FileStruct-to-SSTableScanner-and-remove-cruft.-M.txt, 0003-allow-ReducingIterator-to-reduce-from-one-type-to-a-di.txt, 0004-Replace-PriorityQueue-mess-with-a-CompactionIterator-t.txt
>
>
> compaction deserializes rows during compaction before they are needed, one per sstable.  if we only deserialized on-demand the current algorithm would be fine on nearly arbitrarily large numbers of sstables.  (this is only important b/c it is useful to disable compactions during bulk load.)

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