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[HBASE-14090] Redo FS layout; let go of tables/regions/stores directory hierarchy in DFS
...Our layout as is won't work if 1M regions; e.g. HDFS will fall over if directories of hundreds of thousands of files. HBASE-13991 (Humongous Tables) would address this specific directory pro...
, 2016-06-20, 06:35
[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
[HBASE-15967] Metric for active ipc Readers and make default fraction of cpu count
...Our ipc Readers are hard coded at 10 regardless since . Running w/ less Readers, we go faster..(e.g. 12 Readers has us doing 135k with workloadc and 6 readers has us doing 145k).. .but hard ...
, 2016-06-16, 06:12
[HBASE-15594] [YCSB] Improvements
...Running YCSB and getting good results is an arcane art. For example, in my testing, a few handlers (100) with as many readers as I had CPUs (48), and upping connections on clients to same as...
, 2016-06-15, 22:49
[HBASE-13140] Version documentation to match software
...Its probably about time that we add in a 0.98 and 1.0 version of documentation. Currently, the doc shows as 2.0.0-SNAPSHOT which is a little disorientating. A user on mailing list just...
, 2016-06-15, 18:04
[HBASE-16022] Add fast path when doing FIFO that skips queue
...Copy trick from kudu where we skip queuing incoming requests if there is a waiting handler. Good for ~20% improvement in random reads (workloadc); would be more if we were not bottlenecked o...
, 2016-06-14, 18:26
[HBASE-14506] Reenable TestDistributedLogSplitting#testWorkerAbort
...See attached log. Flakey up on jenkins and down locally....
, 2016-06-14, 04:21
[HBASE-15124] Document the new 'normalization' feature in refguid
...A nice new feature is coming in to 1.2.0, normalization. A small bit of doc on it in refguide would help.Should define what normalization is.Should say a sentence or two on how it works and ...
, 2016-06-14, 04:20
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