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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9430) Memstore heapSize calculation - DEEP_OVERHEAD is incorrect
Date Fri, 20 Sep 2013 08:52:53 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13772882#comment-13772882
] 

Hudson commented on HBASE-9430:
-------------------------------

SUCCESS: Integrated in HBase-TRUNK #4536 (See [https://builds.apache.org/job/HBase-TRUNK/4536/])
HBASE-9430 Memstore heapSize calculation - DEEP_OVERHEAD is incorrect (anoopsamjohn: rev 1524914)
* /hbase/trunk/hbase-common/src/main/java/org/apache/hadoop/hbase/util/ClassSize.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/KeyValueSkipListSet.java
* /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MemStore.java
* /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/io/TestHeapSize.java

                
> Memstore heapSize calculation - DEEP_OVERHEAD is incorrect
> ----------------------------------------------------------
>
>                 Key: HBASE-9430
>                 URL: https://issues.apache.org/jira/browse/HBASE-9430
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>         Attachments: HBASE-9430.patch
>
>
> {code}
> expected += ClassSize.estimateBase(ConcurrentSkipListMap.class, false);
> expected += ClassSize.estimateBase(ConcurrentSkipListMap.class, false);
> expected += ClassSize.estimateBase(CopyOnWriteArraySet.class, false);
> expected += ClassSize.estimateBase(CopyOnWriteArrayList.class, false);
> {code}
> We need to consider the heap requirement for KeyValueSkipListSet.
> From where CopyOnWriteArraySet & CopyOnWriteArrayList is coming into picture?  I
am not able to follow.
> Also we need to consider the heap for TimeRangeTracker

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