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https://issues.apache.org/jira/browse/BOOKKEEPER-578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15194388#comment-15194388
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ASF GitHub Bot commented on BOOKKEEPER-578:
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GitHub user merlimat opened a pull request:
https://github.com/apache/bookkeeper/pull/28
BOOKKEEPER-578: LedgerCacheImpl is reserving 1/3 of Heap size but allocates
NonHeap memory
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/merlimat/bookkeeper bk-578
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/bookkeeper/pull/28.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #28
----
commit 4521e7a677b7a33354d787cf4bd2928b5210c2ea
Author: Matteo Merli <[email protected]>
Date: 2016-03-14T23:33:31Z
BOOKKEEPER-578: LedgerCacheImpl is reserving 1/3 of Heap size but allocates
NonHeap memory
----
> LedgerCacheImpl is reserving 1/3 of Heap size but allocates NonHeap memory
> --------------------------------------------------------------------------
>
> Key: BOOKKEEPER-578
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-578
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Reporter: Matteo Merli
> Assignee: Matteo Merli
> Priority: Minor
> Fix For: 4.4.0
>
>
> By default the page limit parameter is set to -1, which means to assign 1/3
> of Heap space to the LedgerCache. Each LedgerEntryPage is then allocating the
> memory outside the heap (ByteBuffer.allocateDirect()).
> This makes BK to use more memory than the -XmxNN configured setting. Is there
> any particular reason for the LedgerEntryPage buffer to be allocated outside
> the java heap? Could that be changed?
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