Anoop Sam John
Stephen Yuan Jiang
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[HBASE-11303] [0.89] Adding separate hosts to a cluster in non disruptive way
...Similarly to expandRack we need a way to expand a cluster with specific hosts in a non disruptive way. The solution will go through each table and will change a tertiary location of so...
, 2014-06-06, 18:05
[HBASE-11254] [0.89-fb] Improve retry logic in HTableMultiplexer.HTableFlushWorker
...The failed puts in HTableMultiplexer.HTableFlushWorker are immediately resubmitted in the original queue. This queue is being flushed every 100ms (default configuration) and the maximal retr...
, 2014-05-27, 04:04
[HBASE-11035] [0.89-fb] Online configuration change for regionobservers
...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...
, 2014-04-18, 23:54
[HBASE-10975] [89-fb] HTableMultiplexer to use executor
...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...
, 2014-04-14, 23:45
[HBASE-10940] [0.89-fb] Rebalance primaries in-non disruptive way
...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...
, 2014-04-09, 01:30
[HBASE-10939] [89-fb] Adding a rack in HBase in online fashion
...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...
, 2014-04-09, 01:29
[HBASE-10910] [89-fb] Change get(List<Get>) to batchGet(List<Get>)
...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...
, 2014-04-04, 20:10
[HBASE-10425] [0.89-fb] Isolate assignment plan on subset of machines
...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...
, 2014-04-02, 01:48
[HBASE-10503] [0.89-fb] Add metrics to track compaction hook progress
...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...
, 2014-02-11, 19:30
[HBASE-10393] [fb-0.89] Expose a hook to compact files in hbase on the CLI
...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...
, 2014-01-22, 00:18
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