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[HBASE-16142] Trigger JFR session when under duress -- e.g. backed-up request queue count -- and dump the recording to log dir
...Chatting today w/ a mighty hbase operator on how to figure what is happening during transitory latency spike or any other transitory 'weirdness' in a server, the idea came up that a java fli...
, 2016-07-26, 22:28
[HBASE-16176] Bug fixes/improvements on HBASE-15650 Remove TimeRangeTracker as point of contention when many threads reading a StoreFile
...Debugging the parent issue, came up with some improvements on old HBASE-15650 "Remove TimeRangeTracker as point of contention when many threads reading a StoreFile". Lets get them in. Here a...
, 2016-07-26, 17:29
[HBASE-15115] Fix findbugs complaints in hbase-client
, 2016-07-22, 17:15
[HBASE-2481] Client is not getting UnknownScannerExceptions; they are being eaten
...This was reported by mudphone on IRC and confirmed by myself in quick test. If the client takes too long going back to the RS, the RS will throw an UnknownScannerException but it doesn...
, 2016-07-22, 06:46
[HBASE-12351] Making mapred and mapreduce the same
...Umbrella issue for mapred/mapreduce equating....
, 2016-07-18, 16:55
[HBASE-15033] Backport test-patch.sh and zombie-detector.sh from master to branch-1.1
...Backport current test-patch.sh and zombie dettector to branch-1.0+...
, 2016-07-16, 16:35
[HBASE-15414] Bound the size of multi request returns and/or allow return of partial result up to client
...Some knowledgeable hbase users note that while Scanning now allows you return results in 'chunks' for assembly client-side as a whole result (or the application can see the partials as they ...
, 2016-07-11, 19:54
[HBASE-14422] Fix TestFastFailWithoutTestUtil
...TestFastFailWithoutTestUtil has a unit test that does testInterceptorIntercept50Times Usually it passes but on occasion, the latching between thread 1 and thread 2 goes awry and the test han...
, 2016-07-10, 15:00
[HBASE-15650] Remove TimeRangeTracker as point of contention when many threads reading a StoreFile
...HBASE-12148 is about "Remove TimeRangeTracker as point of contention when many threads writing a Store". It is also a point of contention when reading....
, 2016-07-09, 19:00
[HBASE-16161] Remove a few unnecessary (uncontended) synchronizes
...This is followon from HBASE-15716. We have a few odd looking synchronizes. A few are probably elided after analysis concludes single thread consumer but lets remove to be clear....
, 2016-07-09, 04:38
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