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[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
[HBASE-15716] HRegion#RegionScannerImpl scannerReadPoints synchronization constrains random read
...Here is a Lars Hofhansl special.When we construct the region scanner, we get our read point and then store it with the scanner instance in a Region scoped CSLM. This is done under a synchron...
, 2016-07-08, 15:45
[HBASE-16180] Fix ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD findbugs introduced by parent
, 2016-07-07, 16:58
[HBASE-16046] [UMBRELLA] Make our default rpc scheduler the adaptive LIFO+CoDel added in HBASE-15136
...Our current rpc scheduler default is FIFO. Good for speed but as soon as the server gets overloaded, our behavior goes south. We can do better, or a plan is better than none. Our FB brothers...
, 2016-06-22, 23:14
[HBASE-16023] Fastpath for the FIFO rpcscheduler
...This is an idea copied from kudu where we skip queuing a request if there is a handler ready to go; we just do a direct handoff from reader to handler.Makes for close to a %20 improvement in...
, 2016-06-20, 22:58
[HBASE-15876] Remove doBulkLoad(Path hfofDir, final HTable table) though it has not been through a full deprecation cycle
...HBASE-15875 purges the properly deprecated HTable. The method doBulkLoad(Path hfofDir, final HTable table), while it has a deprecated param, the method itself did not get a deprecation label...
, 2016-06-20, 19:43
[HBASE-16063] Race condition in new FIFO fastpath from HBASE-16023
...From Hiroshi Ikeda over in HBASE-16023 at https://issues.apache.org/jira/browse/HBASE-16023?focusedCommentId=15331172&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpane...
, 2016-06-20, 01:29
[HBASE-14915] Hanging test : org.apache.hadoop.hbase.mapreduce.TestImportExport
...This test hangs a bunch:Here is latest:https://builds.apache.org/job/HBase-1.2/418/jdk=latest1.7,label=Hadoop/consoleText...
, 2016-06-18, 12:04
[HBASE-15971] Regression: Random Read/WorkloadC slower in 1.x than 0.98
...branch-1 is slower than 0.98 doing YCSB random read/workloadC. It seems to be doing about 1/2 the throughput of 0.98.In branch-1, we have low handler occupancy compared to 0.98. Hacking in r...
, 2016-06-16, 12:02
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