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[HBASE-11889] Turn distributedLogReplay off by default for HBase1.0 - HBase - [issue]
...The reason is that we want to support rolling upgrade while distributedLogReplay supports rolling upgrade only since hbase0.98.4(HBASE-11094). So keep it off by default for 1.0 because we wa...
http://issues.apache.org/jira/browse/HBASE-11889    Author: Jeffrey Zhong, 2014-09-05, 18:57
[HBASE-11594] Unhandled NoNodeException in distributed log replay mode - HBase - [issue]
...This issue happens when a RS doesn't have any WAL to be replayed. Master immediately finishes recovery for the RS while a region in recovery is still opening. Below is the exception in regio...
http://issues.apache.org/jira/browse/HBASE-11594    Author: Jeffrey Zhong, 2014-08-01, 21:02
[HBASE-11315] Keeping MVCC for configurable longer time - HBase - [issue]
...After hbase-8763, we need keep mvcc number longer in hfile so that it can be used to order changes during writes. For example, the known put,delete,put,... scenario, cross region server scan...
http://issues.apache.org/jira/browse/HBASE-11315    Author: Jeffrey Zhong, 2014-07-08, 01:38
[HBASE-11445] TestZKProcedure#testMultiCohortWithMemberTimeoutDuringPrepare is flaky - HBase - [issue]
...Recently there is a failure from Jenkins build:https://builds.apache.org/job/HBase-0.98/364/testReport/junit/org.apache.hadoop.hbase.procedure/TestZKProcedure/testMultiCohortWithMemberTimeou...
http://issues.apache.org/jira/browse/HBASE-11445    Author: Jeffrey Zhong, 2014-07-01, 22:17
[HBASE-11430] lastFlushSeqId has been updated wrongly during region open - HBase - [issue]
...In HRegion this.lastFlushSeqId is updated when opening a region which is wrong and will cause issue in distributedLogReplay recovery mode(not in log splitting mode) because its value is bump...
http://issues.apache.org/jira/browse/HBASE-11430    Author: Jeffrey Zhong, 2014-06-28, 07:45
[expand - 1 more] - Re: Timestamp resolution - HBase - [mail # dev]
...In situations such as client "timestamp" is used to support transactions,it's not bad to disable server side TTL because TTL clean up doesn't careabout transaction semantics. Therefore, it l...
   Author: Jeffrey Zhong, 2014-06-12, 21:54
[HBASE-11314] Remove MultiVersionConsistencyControl#writeQueue - HBase - [issue]
...This is a follow up improvement of HBase-8763. After we combined MVCC & LogSeqId, the memstore read point advances in the logSeqId increasing order. The MultiVersionConsistencyControl#wr...
http://issues.apache.org/jira/browse/HBASE-11314    Author: Jeffrey Zhong, 2014-06-10, 18:53
Re: [VOTE] Merge branch HBASE-10070 to trunk - HBase - [mail # dev]
...+1. It brings goodies such as region replica, cross region serverscan&get, anti-affinity of regions, and pave the way for sync regionreplication. Thanks,-Jeffrey On 6/6/14 2:42 PM, "Devaraj ...
   Author: Jeffrey Zhong, 2014-06-07, 01:05
Re: Two kinds of data inconsistency - HBase - [mail # dev]
...Yes, that's one of HBASE-8763 intention. The issues could happen whenregion moves and we bump up memstore readpoint which would cause thescanner returns inconsistent data as well.One solutio...
   Author: Jeffrey Zhong, 2014-05-27, 18:40
[HBASE-11099] Two situations where we could open a region with smaller sequence number - HBase - [issue]
...Recently I happened to run into code where we potentially could open region with smaller sequence number:1) Inside function: HRegion#internalFlushcache. This is due to we change the way WAL ...
http://issues.apache.org/jira/browse/HBASE-11099    Author: Jeffrey Zhong, 2014-05-02, 05:12
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