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[HBASE-5914] Bulk assign regions in the process of ServerShutdownHandler - HBase - [issue]
...In the process of ServerShutdownHandler, we currently assign regions singly.In the large cluster, one regionserver always carried many regions, this action is  quite slow.What about usi...
http://issues.apache.org/jira/browse/HBASE-5914    Author: chunhui shen, 2012-10-24, 01:16
[HBASE-6336] Split point should not be equal to start row or end row - HBase - [issue]
...Should we allow split point equal with region's start row or end row?// if the midkey is the same as the first and last keys, then we cannot        // (ever) split t...
http://issues.apache.org/jira/browse/HBASE-6336    Author: chunhui shen, 2012-10-20, 06:00
[HBASE-6337] [MTTR] Remove renaming tmp log file in SplitLogManager - HBase - [issue]
...As HBASE-6309 mentioned, we also encounter problem of distributed-log-splitting take much more time than matser-local-log-splitting because lots of SplitLogManager 's renaming operations whe...
http://issues.apache.org/jira/browse/HBASE-6337    Author: chunhui shen, 2012-10-12, 06:36
[HBASE-6329] Stopping META regionserver when splitting region could cause daughter region to be assigned twice - HBase - [issue]
...We found this issue in 0.94, first let me describe the caseļ¼šStop META rs when split is in progress1.Stopping META rs(Server A).2.The main thread of rs close ZK and delete ephemeral node of t...
http://issues.apache.org/jira/browse/HBASE-6329    Author: chunhui shen, 2012-10-12, 06:36
[HBASE-6713] Stopping META/ROOT RS may take 50mins when some region is splitting - HBase - [issue]
...When we stop the RS carrying ROOT/META, if it is in the splitting for some region, the whole stopping process may take 50 mins.The reason is :1.ROOT/META region is closed when stopping the r...
http://issues.apache.org/jira/browse/HBASE-6713    Author: chunhui shen, 2012-10-05, 11:51
[HBASE-6228] Fixup daughters twice  cause daughter region assigned twice - HBase - [issue]
...First, how fixup daughters twice happen?1.we will fixupDaughters at the last of HMaster#finishInitialization2.ServerShutdownHandler will fixupDaughters when reassigning region through Server...
http://issues.apache.org/jira/browse/HBASE-6228    Author: chunhui shen, 2012-10-03, 23:34
[HBASE-6838] Regionserver may generate identical scanner name - HBase - [issue]
...In current implementation of HRegionserver#addScanner, it may generate same scanner name, thus make scanner confusion....
http://issues.apache.org/jira/browse/HBASE-6838    Author: chunhui shen, 2012-09-20, 00:40
[HBASE-6399] MetricsContext should be different between RegionServerMetrics and RegionServerDynamicMetrics - HBase - [issue]
...In hadoop-metrics.properties, GangliaContext is optional metrics context, I think we will use ganglia to monitor hbase cluster generally.However, I find a serious problem:RegionServerDynamic...
http://issues.apache.org/jira/browse/HBASE-6399    Author: chunhui shen, 2012-09-07, 19:45
[HBASE-6587] Region would be assigned twice in the case of all RS offline - HBase - [issue]
...In the TimeoutMonitor, we would act on time out for the regions if (this.allRegionServersOffline && !noRSAvailable)The code is as the following:if (regionState.getStamp() + timeout &...
http://issues.apache.org/jira/browse/HBASE-6587    Author: chunhui shen, 2012-09-05, 01:57
[HBASE-4988] MetaServer crash cause all splitting regionserver abort - HBase - [issue]
...If metaserver crash now,All the splitting regionserver will abort theirself.Becasue the codethis.journal.add(JournalEntry.PONR);MetaEditor.offlineParentInMeta(server.getCatalogTracker(),&nbs...
http://issues.apache.org/jira/browse/HBASE-4988    Author: chunhui shen, 2012-08-30, 16:55
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