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Posted to issues@hbase.apache.org by "Nicolas Spiegelberg (Commented) (JIRA)" <ji...@apache.org> on 2011/11/08 20:35:52 UTC
[jira] [Commented] (HBASE-3603) Remove
-XX:+HeapDumpOnOutOfMemoryError autodump of heap option on OOME
[ https://issues.apache.org/jira/browse/HBASE-3603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13146495#comment-13146495 ]
Nicolas Spiegelberg commented on HBASE-3603:
--------------------------------------------
We're one of those wierdos, can we add this feature back in, but comment it out? I think it's good to have a recommended list of optional features to play with and then explain why they're disabled for the common use case.
> Remove -XX:+HeapDumpOnOutOfMemoryError autodump of heap option on OOME
> ------------------------------------------------------------------------
>
> Key: HBASE-3603
> URL: https://issues.apache.org/jira/browse/HBASE-3603
> Project: HBase
> Issue Type: Task
> Reporter: stack
> Assignee: stack
> Priority: Minor
>
> By default the -XX:+HeapDumpOnOutOfMemoryError option is set for HBase. Means we'll dump heap when we OOME. In the heaps we run with 8G, 16G, etc., these can make for hefty files. No one really looks at these things other than a few weirdos and even then, the interesting ones are too big to ship easily. Meantime, they can cause headache. E.g. you are on EC2, root is but a small partition, and you set up hbase on root partition... a heap dump could cause your root partition to fill and make the machine unapproachable.
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