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[HBASE-5737] Minor Improvements related to balancer.
...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...
, 2013-02-26, 17:02
[HBASE-6317] Master clean start up and Partially enabled tables make region assignment inconsistent.
...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 ...
, 2013-02-26, 08:23
[HBASE-7906] OfflineCallBack in bulk assignment does not work as expected
...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...
, 2013-02-23, 03:37
[HBASE-5323] Need to handle assertion error while splitting log through ServerShutDownHandler by shutting down the master
...We know that while parsing the HLog we expect the proper length from HDFS.In WALReaderFSDataInputStream assert(realLength >= this.leng...
, 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.
...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...
, 2013-01-24, 16:04
[HBASE-5698] Add new coprocessor hooks in doMiniBatchPut
...As discussed in the JIRA HBASE-5617, this JIRA has been raised to add new hooks to doMiniBatchPut....
, 2012-12-31, 05:05
[HBASE-7103] Need to fail split if SPLIT znode is deleted even before the split is completed.
...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...
, 2012-12-03, 21:47
[HBASE-6854] Deletion of SPLITTING node on split rollback should clear the region from RIT
...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...
, 2012-11-09, 23:44
[HBASE-6070] AM.nodeDeleted and SSH races creating problems for regions under SPLIT
...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...
, 2012-10-27, 05:32
[HBASE-6997] HRegion.mutateRows() should check for blocking memstore size and if the region is closing.
...Currently HRegion.mutateRows() does not call startRegionOperation() and checkResources(). Ideally before doing mutateRows() the memstore size and 'closing' flag should be checked....
, 2012-10-18, 05:25
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