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[HBASE-11546] Backport ZK-less region assignment to 0.98 - HBase - [issue]
...Discuss concerns about backporting HBASE-11059 to 0.98...
http://issues.apache.org/jira/browse/HBASE-11546    Author: Virag Kothari, 2014-08-26, 21:20
[HBASE-11814] TestAssignmentManager.testCloseFailed() and testOpenCloseRacing() is flaky - HBase - [issue]
...Andrew found this at https://issues.apache.org/jira/browse/HBASE-11546?focusedCommentId=14108237&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14108237Tha...
http://issues.apache.org/jira/browse/HBASE-11814    Author: Virag Kothari, 2014-08-26, 18:53
[HBASE-11531] RegionStates for regions under region-in-transition znode are not updated on startup - HBase - [issue]
...While testing HBASE-11059, saw that if there are regions under region-in-transition znode their states are not updated in META and master memory on startup....
http://issues.apache.org/jira/browse/HBASE-11531    Author: Virag Kothari, 2014-08-26, 16:19
[HBASE-11659] Region state RPC call is not idempotent - HBase - [issue]
...Here is the scenario on 0.98 with zk-less assignmentThe master gets an OPEN RPC call from region server.So, it moves the region state from PENDING_OPEN to OPEN.But, the call timeouts on the ...
http://issues.apache.org/jira/browse/HBASE-11659    Author: Virag Kothari, 2014-08-26, 16:18
[HBASE-11793] RegionStates shouldn't be locked while writing to META - HBase - [issue]
...Following scenario with zk-less assignmentTwo shutdown handler threads are running where one is METAServerShutdownHandler.The ServershutdownHandler thread doing recovering of region server o...
http://issues.apache.org/jira/browse/HBASE-11793    Author: Virag Kothari, 2014-08-21, 03:14
[HBASE-11747] ClusterStatus is too bulky - HBase - [issue]
...Following exception on 0.98 with 1M regions on cluster with 160 region serversCaused by: java.io.IOException: Call to regionserverhost:port failed on local exception: com.google.protobuf.Inv...
http://issues.apache.org/jira/browse/HBASE-11747    Author: Virag Kothari, 2014-08-18, 22:18
[HBASE-11740] RegionStates.getRegionAssignments() gets stuck on clone - HBase - [issue]
...This happens in processDeadServersAndRegionsInTransition() on Master startup. RegionAssigments is a tree map and TreeMap.clone() is expensive as it builds a tree from sorted data (Order of n...
http://issues.apache.org/jira/browse/HBASE-11740    Author: Virag Kothari, 2014-08-16, 00:48
[HBASE-11759] TableZnode should be cached - HBase - [issue]
...Observed on 0.98 with zk less assignment. On receiving the rpc call about Region state transition, the rpc reader threads on master tries to figure whether the table is in disabling or ...
http://issues.apache.org/jira/browse/HBASE-11759    Author: Virag Kothari, 2014-08-15, 21:27
[HBASE-11758] Meta region location should be cached - HBase - [issue]
...The zk less assignment involves only master updating the meta and  this can be faster if we cache the meta location instead of reading the meta znode every time....
http://issues.apache.org/jira/browse/HBASE-11758    Author: Virag Kothari, 2014-08-15, 19:50
Re: Stargate perf and troubleshooting tips - HBase - [mail # user]
...Hi,Filters are added for Stateless Scanner but its not in 0.98 (HBASE-9345).We will add docs soon.The query parameter for filters is filter='Filter expression'.The filter language is the sam...
   Author: Virag Kothari, 2014-08-12, 22:42
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