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[HBASE-5737] Minor Improvements related to balancer. - HBase - [issue]
...Currently in Am.getAssignmentByTable()  we use a result map which is currenly a hashmap.  It could be better if we have a treeMap.  Even in MetaReader.fullScan we have the tre...
http://issues.apache.org/jira/browse/HBASE-5737    Author: ramkrishna.s.vasudevan, 2013-02-26, 17:02
[HBASE-6317] Master clean start up and Partially enabled tables make region assignment inconsistent. - HBase - [issue]
...If we have a  table in partially enabled state (ENABLING) then on HMaster restart we treat it as a clean cluster start up and do a bulk assign.  Currently in 0.94 bulk assign will ...
http://issues.apache.org/jira/browse/HBASE-6317    Author: ramkrishna.s.vasudevan, 2013-02-26, 08:23
[HBASE-7906] OfflineCallBack in bulk assignment does not work as expected - HBase - [issue]
...This is as part of discussion in HBASE-7799.The OfflineCallBack does not bother if the znode already exists or not.  Infact the catch block AM.asyncSetOfflineInZooKeeper() is a dead cod...
http://issues.apache.org/jira/browse/HBASE-7906    Author: ramkrishna.s.vasudevan, 2013-02-23, 03:37
[HBASE-5323] Need to handle assertion error while splitting log through ServerShutDownHandler by shutting down the master - HBase - [issue]
...We know that while parsing the HLog we expect the proper length from HDFS.In WALReaderFSDataInputStream              assert(realLength >= this.leng...
http://issues.apache.org/jira/browse/HBASE-5323    Author: ramkrishna.s.vasudevan, 2013-01-27, 08:12
[HBASE-7551] nodeChildrenChange event may happen after the transition to RS_ZK_REGION_SPLITTING in SplitTransaction causing the SPLIT event to be missed in the master side. - HBase - [issue]
...This came from HBASE-7468.I got the issue. I am able to reproduce thisSee the logs2013-01-14 14:37:21,760 INFO  [main] regionserver.SplitTransaction(216): Starting split of region testS...
http://issues.apache.org/jira/browse/HBASE-7551    Author: ramkrishna.s.vasudevan, 2013-01-24, 16:04
[HBASE-5698] Add new coprocessor hooks in doMiniBatchPut - HBase - [issue]
...As discussed in the JIRA HBASE-5617, this JIRA has been raised to add new hooks to doMiniBatchPut....
http://issues.apache.org/jira/browse/HBASE-5698    Author: ramkrishna.s.vasudevan, 2012-12-31, 05:05
[HBASE-7103] Need to fail split if SPLIT znode is deleted even before the split is completed. - HBase - [issue]
...This came up after the following mail in dev list'infinite loop of RS_ZK_REGION_SPLIT on .94.2'.The following is the reason for the problemThe following steps happen-> Initially the paren...
http://issues.apache.org/jira/browse/HBASE-7103    Author: ramkrishna.s.vasudevan, 2012-12-03, 21:47
[HBASE-6854] Deletion of SPLITTING node on split rollback should clear the region from RIT - HBase - [issue]
...If a failure happens in split before OFFLINING_PARENT, we tend to rollback the split including deleting the znodes created.On deletion of the RS_ZK_SPLITTING node we are getting a callback b...
http://issues.apache.org/jira/browse/HBASE-6854    Author: ramkrishna.s.vasudevan, 2012-11-09, 23:44
[HBASE-6070] AM.nodeDeleted and SSH races creating problems for regions under SPLIT - HBase - [issue]
...We tried to address the problems in Master restart and RS restart while SPLIT region is in progress as part of HBASE-5806.While doing some more we found still there is one race condition.-&g...
http://issues.apache.org/jira/browse/HBASE-6070    Author: ramkrishna.s.vasudevan, 2012-10-27, 05:32
[HBASE-6997] HRegion.mutateRows() should check for blocking memstore size and if the region is closing. - HBase - [issue]
...Currently HRegion.mutateRows() does not call startRegionOperation() and checkResources().  Ideally before doing mutateRows() the memstore size and 'closing' flag should be checked....
http://issues.apache.org/jira/browse/HBASE-6997    Author: ramkrishna.s.vasudevan, 2012-10-18, 05:25
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