Anoop Sam John
Stephen Yuan Jiang
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[HBASE-15084] Remove references to repository.codehaus.org
...repository.codehause.org is not longer active.A dns-lookup reveals an alias to stop-looking-at.repository-codehaus-org All repositories have been moved to Maven central, so it can just remov...
, 2016-01-09, 22:18
[HBASE-15054] Allow 0.94 to compile with JDK8
...Fix the following two problems: PoolMap InputSampler...
, 2016-01-05, 05:41
[HBASE-14539] Slight improvement of StoreScanner.optimize
...While looking at the code I noticed that StoreScanner.optimize does not some unnecessary work. This is a very tight loop and even just looking up a reference can throw off the CPUs cache lin...
, 2015-12-22, 10:36
[HBASE-14657] Remove unneeded API from EncodedSeeker
...See parent. We do not need getKeyValueBuffer. It's only used for tests, and parent patch fixes all tests to use getKeyValue instead....
, 2015-12-18, 00:53
[HBASE-14014] Explore row-by-row grouping options
...See discussion in parent.We need to considering the following attributes of WALKey: The cluster ids Table Name write time (here we could use the latest of any batch) seqNumAs long as we pres...
, 2015-12-04, 19:38
[HBASE-14315] Save one call to KeyValueHeap.peek per row
...Another one of my micro optimizations.In StoreScanner.next(...) we can actually save a call to KeyValueHeap.peek, which in my runs of scan heavy loads shows up at top.Based on the run and da...
, 2015-12-01, 01:25
[HBASE-14791] Batch Deletes in MapReduce jobs (0.98)
...We found that some of our copy table job run for many hours, even when there isn't that much data to copy.Vikas Vishwakarma did his magic and found that the issue is with copying delete mark...
, 2015-11-19, 18:55
[HBASE-12621] Explain in the book when KEEP_DELETED_CELLS is useful
...KEEP_DELETED_CELLS seems to be very confusing.The books need further clarification when this setting is useful and what the implications are.(and maybe we should discuss if there's a simpler...
, 2015-11-13, 17:32
[HBASE-13318] RpcServer.getListenerAddress should handle when the accept channel is closed
...We just saw exceptions like these:Exception in thread "B.DefaultRpcServer.handler=45,queue=0,port=60020" java.lang.NullPointerException at org.apache.hadoop.hbase.ipc.RpcServer$Listener.getA...
, 2015-10-25, 04:34
[HBASE-14628] [0.98] Save object creation for scanning with block encodings
...I noticed that (at least in 0.98 - master is entirely different) we create ByteBuffer just to create a byte, which is then used to create a KeyValue.We can save the creation of the ByteBuf...
, 2015-10-22, 21:55
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