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[HBASE-6838] Regionserver may generate identical scanner name - HBase - [issue]
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...In current implementation of HRegionserver#addScanner, it may generate same scanner name, thus make scanner confusion....
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http://issues.apache.org/jira/browse/HBASE-6838
Author: chunhui shen,
2012-09-20, 00:40
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[HBASE-6399] MetricsContext should be different between RegionServerMetrics and RegionServerDynamicMetrics - HBase - [issue]
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...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...
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http://issues.apache.org/jira/browse/HBASE-6399
Author: chunhui shen,
2012-09-07, 19:45
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[HBASE-6587] Region would be assigned twice in the case of all RS offline - HBase - [issue]
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...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 &...
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http://issues.apache.org/jira/browse/HBASE-6587
Author: chunhui shen,
2012-09-05, 01:57
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[HBASE-4988] MetaServer crash cause all splitting regionserver abort - HBase - [issue]
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...If metaserver crash now,All the splitting regionserver will abort theirself.Becasue the codethis.journal.add(JournalEntry.PONR);MetaEditor.offlineParentInMeta(server.getCatalogTracker(),&nbs...
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http://issues.apache.org/jira/browse/HBASE-4988
Author: chunhui shen,
2012-08-30, 16:55
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[HBASE-5121] MajorCompaction may affect scan's correctness - HBase - [issue]
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...In our test, there are two families' keyvalue for one row.But we could find a infrequent problem when doing scan's next if majorCompaction happens concurrently.In the client's two continuous...
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http://issues.apache.org/jira/browse/HBASE-5121
Author: chunhui shen,
2012-07-22, 19:07
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[HBASE-6311] Data error after majorCompaction caused by keeping MVCC for opened scanners - HBase - [issue]
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...It is a big problem we found in 0.94, and you could reproduce the problem in Trunk using the test case I uploaded.When we do compaction, we will use region.getSmallestReadPoint() to keep MVC...
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http://issues.apache.org/jira/browse/HBASE-6311
Author: chunhui shen,
2012-07-06, 20:56
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[HBASE-6227] SSH and cluster startup causes data loss - HBase - [issue]
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...In AssignmentManager#processDeadServersAndRegionsInTransition, if servershutdownhandler is processing and master consider it cluster startup, master will assign all user regions, however, se...
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http://issues.apache.org/jira/browse/HBASE-6227
Author: chunhui shen,
2012-06-28, 17:40
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[HBASE-5918] Master will block forever at startup if root server dies between assigning root and assigning meta - HBase - [issue]
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...When master is initializing, if root server died between assign root and assign meta, master will block at HMaster#assignRootAndMeta:assignmentManager.assignMeta();this.catalogTracker.waitFo...
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http://issues.apache.org/jira/browse/HBASE-5918
Author: chunhui shen,
2012-06-23, 18:23
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[HBASE-6204] Improvement for opening region on the regionserver - HBase - [issue]
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...If one table has many regions, like 100k regions.We would find regionserver open region very slowly.Opening region in parallel on the rs will be closed to serially.The following code is the ...
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http://issues.apache.org/jira/browse/HBASE-6204
Author: chunhui shen,
2012-06-13, 04:50
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[HBASE-6016] ServerShutdownHandler#processDeadRegion could return false for disabling table regions - HBase - [issue]
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...* @return Returns true if specified region should be assigned, false if not. * @throws IOException */ public static boolean processDeadRegion(HRegionInfo h...
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http://issues.apache.org/jira/browse/HBASE-6016
Author: chunhui shen,
2012-06-01, 05:42
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