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[HBASE-17885] Backport HBASE-15871 to branch-1
...Will try to rebase the branch-1 patch at the earliest. Hope the fix versions are correct....
, 2018-03-19, 22:02
[HBASE-5839] Backup master not starting up due to Bind Exception while starting HttpServer
...Backup master tries to bind to the info port 60010.This is done once the back up master becomes active. Even before that the Data Xceviers threads (IPC handlers) are started and they a...
, 2018-03-02, 03:31
[HBASE-10974] Improve DBEs read performance by avoiding byte array deep copies for key and value
...As part of HBASE-10801, we tried to reduce the copy of the value  in forming the KV from the DBEs. The keys required copying and this was restricting us in using Cells and always wan...
, 2018-03-02, 03:27
[HBASE-11084] Handle deletions and column tracking using internal filters rather than using DeleteTrackers and ColumnTrackers
...See HBASE-11054 for discussion. Currently the delete tracking is done by DeleteTracker and its subclasses. column tracking and its versions are handled inside the ColumnTrackers ...
, 2018-03-02, 03:26
[HBASE-12254] Document limitations related to pluggable replication endpoint feature usage in 0.98
...The pluggable Replication endpoint in 0.98 will need to be documented as how exactly it can be used because of limitations that we may have due to mixed version compatability where the peers...
, 2018-03-02, 03:21
[HBASE-17354] Improve and optimize flush/compaction process
...This could act as a parent JIRA for optimizing flush/compaction in terms of speed,algo and GC generated by these operations. Even if we have offheap memstore there are some places where flus...
, 2018-03-02, 02:50
[HBASE-17645] Improve the connection usage in PE tool
...In PE tool we have the option of using one connection for all threads. By default it is false. And you can see a big difference in the measurements that the tool produces and also the ...
, 2018-03-02, 02:48
[HBASE-18442] Speed up Memstore chunk pool ByteBuffer allocations
...Like in HBASE-17738 we can speed up the allocation of memstore chunk pool's ByteBuffers. 2017-07-24 17:51:09,726 INFO [regionserver/stobdtserver6/10.66.254.41:16020] regionserver.Chunk...
, 2018-03-02, 02:38
[HBASE-17383] Improve log msg when offheap memstore breaches higher water mark
...Currently we get this log2016-12-28 21:11:14,349 INFO [RpcServer.deafult.FPBQ.Fifo.handler=39,queue=9,port=16041] regionserver.MemStoreFlusher: Blocking updates on stobdtserver5,16041,...
, 2018-03-02, 02:16
[HBASE-16500] Do not add any store file on scanner reset that has a seq id greater than current read pt
...This in principle is similar to HBASE-15871. Take for eg. we have a scanner created with read pt 4. After which a we do a lot of mutations and then flush the region. Now when the scanner res...
, 2018-03-02, 01:35
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