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[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, 2015-04-08, 06:20
[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, 2015-04-04, 19:20
[HBASE-12600] Remove REPLAY tag dependency in Distributed Replay Mode - HBase - [issue]
...After HBASE-11315 & HBASE-8763, each edit has a unique 'version' i.e. its SequenceId(or old mvcc value). Therefore, we don't need replay tag to handle out of order same version updates....
http://issues.apache.org/jira/browse/HBASE-12600    Author: Jeffrey Zhong, 2015-04-02, 22:49
[HBASE-13077] BoundedCompletionService doesn't pass trace info to server - HBase - [issue]
...Today Nick Dimiduk & I found that BoundedCompletionService doesn't pass htrace info to server. This issue causes scan doesn't pass trace info to server.Enis Soztutar FYI....
http://issues.apache.org/jira/browse/HBASE-13077    Author: Jeffrey Zhong, 2015-02-24, 21:49
Re: [VOTE] Sixth release candidate for HBase 1.0.0 (RC5) is available. Please vote by Feb 19 2015 - HBase - [mail # dev]
...+1. I have compiled & run Phoenix master branch code(with some codechanges) on top of Hbase 1.0.0. All Phoenix tests are passed and one issueis found(https://issues.apache.org/jira/browse/HB...
   Author: Jeffrey Zhong, 2015-02-21, 07:05
[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, 2015-02-01, 04:37
[HBASE-12485] Maintain SeqId monotonically increasing - HBase - [issue]
...We added FLUSH, REGION CLOSE events into WAL, for each those events the region SeqId is bumped. The issue comes from region close operation. Because when opening a region, we use flushed Seq...
http://issues.apache.org/jira/browse/HBASE-12485    Author: Jeffrey Zhong, 2014-12-11, 03:59
Re: First release candidate for HBase 0.99.2 (RC0) is available. Please vote by 12/06/2014 - HBase - [mail # dev]
...+1 due to it's a dev release.I've downloaded the RC, run it in pseudo cluster mode and works good. Theissue I hit is when trying to run a integration test and got followingerror: java.lang....
   Author: Jeffrey Zhong, 2014-12-06, 20:18
[HBASE-12398] Region isn't assigned in an extreme race condition - HBase - [issue]
...In a test, Enis Soztutar has seen a condition which made one of the regions unassigned. The client failed since the region is not online anywhere: 2014-10-29 01:51:40,731 WARN  [HBaseRe...
http://issues.apache.org/jira/browse/HBASE-12398    Author: Jeffrey Zhong, 2014-12-03, 06:37
[HBASE-12588] Need to fail writes when row lock can't be acquired - HBase - [issue]
...Currently we don't fail write operations when can't acquiring row locks as shown below in HRegion#doMiniBatchMutation. ...        RowLock rowLock = null;  ...
http://issues.apache.org/jira/browse/HBASE-12588    Author: Jeffrey Zhong, 2014-11-30, 03:44
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB