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[HBASE-11035] [0.89-fb] Online configuration change for regionobservers - HBase - [issue]
...We can use online configuration change to specify the active list of coprocessors in CoprocessorHost (RegionCoprocessorHost). That way we don't need to close regions when we want to add/remo...
http://issues.apache.org/jira/browse/HBASE-11035    Author: Adela Maznikar, 2014-04-18, 23:54
[HBASE-10975] [89-fb] HTableMultiplexer to use executor - HBase - [issue]
...HtableMultiplexer is creating manually HTableFlushWorker thread for each regionserver. Changing this to use ScheduledExecutorService. Also this will help us get rid of the Thread.sleep() &nb...
http://issues.apache.org/jira/browse/HBASE-10975    Author: Adela Maznikar, 2014-04-14, 23:45
[HBASE-10940] [0.89-fb] Rebalance primaries in-non disruptive way - HBase - [issue]
...Added an option RegionPlacement -bp (balance primaries).Sometimes in production we hit a case where some of the regionservers are serving less number of regions than the rest and just updati...
http://issues.apache.org/jira/browse/HBASE-10940    Author: Adela Maznikar, 2014-04-09, 01:30
[HBASE-10939] [89-fb] Adding a rack in HBase in online fashion - HBase - [issue]
...RegionPlacement -exprack to add a new rack into the region placement. So far we have a static assignment plan and 3 preferred locations for a region, such that the primary is the location wh...
http://issues.apache.org/jira/browse/HBASE-10939    Author: Adela Maznikar, 2014-04-09, 01:29
[HBASE-10910] [89-fb] Change get(List<Get>) to batchGet(List<Get>) - HBase - [issue]
...batchGet(List<Get>) is more performant since it splits the list of Gets on regionserver level, and get(List<Get>) does that on region level. If we have a list of gets for regions...
http://issues.apache.org/jira/browse/HBASE-10910    Author: Adela Maznikar, 2014-04-04, 20:10
[HBASE-10425] [0.89-fb] Isolate assignment plan on subset of machines - HBase - [issue]
...We use AssignmentPlan to decide on favored nodes for regions. Right now we include all machines from the cluster in the assignment plan of a table. We want ability to limit the number of mac...
http://issues.apache.org/jira/browse/HBASE-10425    Author: Adela Maznikar, 2014-04-02, 01:48
[HBASE-10503] [0.89-fb] Add metrics to track compaction hook progress - HBase - [issue]
...Add a metric to track how many KVs we have converted with the compaction hook, and bytes that we have saved during the process. This will help us to see when there are no new KVs converted a...
http://issues.apache.org/jira/browse/HBASE-10503    Author: Adela Maznikar, 2014-02-11, 19:30
[HBASE-10393] [fb-0.89] Expose a hook to compact files in hbase on the CLI - HBase - [issue]
...Sometimes we need way to perform compactions outside of the regionserver, example before turning on the cluster. The task is to expose a way to compact files from the CLI without requiring a...
http://issues.apache.org/jira/browse/HBASE-10393    Author: Adela Maznikar, 2014-01-22, 00:18
[HBASE-10109] [0.89-fb] Balance #regions/RS better when creating new table - HBase - [issue]
...When a new table is created we place the primary locations for the regions in a round robin fashion. Because we do this for every newly created table it is possible that some regionservers e...
http://issues.apache.org/jira/browse/HBASE-10109    Author: Adela Maznikar, 2013-12-10, 21:49
[HBASE-8688] Add a choice for single/multiple throttler for callqueue - HBase - [issue]
...The general idea is to have two throttles, such that we throttle larger and smaller responses differently. If we know what is the typical size of the response to a client, we can limit the p...
http://issues.apache.org/jira/browse/HBASE-8688    Author: Adela Maznikar, 2013-08-07, 19:13
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