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https://issues.apache.org/jira/browse/HBASE-12016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14234691#comment-14234691
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Hudson commented on HBASE-12016:
--------------------------------
SUCCESS: Integrated in HBase-1.0 #540 (See
[https://builds.apache.org/job/HBase-1.0/540/])
HBASE-12204 Backport HBASE-12016 'Reduce number of versions in Meta table. Make
it configurable' to branch-1 (tedyu: rev
2e47c37b7102aa88ac99bacb8950105178ec0e29)
* hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestGetClosestAtOrBefore.java
*
hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionManager.java
* hbase-client/src/main/java/org/apache/hadoop/hbase/HTableDescriptor.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/migration/TestNamespaceUpgrade.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/snapshot/SnapshotManifest.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestMergeTable.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionInfo.java
* hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestMergeTool.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/security/access/AccessController.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestMasterFailover.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestFSTableDescriptors.java
* hbase-server/src/main/java/org/apache/hadoop/hbase/util/MetaUtils.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/HBaseTestCase.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/TestFSTableDescriptorForceCreation.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestAdmin2.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterFileSystem.java
* hbase-server/src/test/java/org/apache/hadoop/hbase/util/TestHBaseFsck.java
*
hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSTableDescriptors.java
> Reduce number of versions in Meta table. Make it configurable
> -------------------------------------------------------------
>
> Key: HBASE-12016
> URL: https://issues.apache.org/jira/browse/HBASE-12016
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: Andrey Stepachev
> Assignee: Andrey Stepachev
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch,
> HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch, HBASE-12016.patch
>
>
> Currently meta keeps up to 10 versions of each KV.
> For big metas it leads to substantial memory overhead and scan slowdowns.
> (see https://issues.apache.org/jira/browse/HBASE-11165 )
> Need to keep reasonable number of versions (suggested value is 3).
> Number of versions configurable via parameter: hbase.meta.versions
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