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[HBASE-15477] Do not save 'next block header' when we cache hfileblocks
... When we read from HDFS, we overread to pick up the next blocks header. Doing this saves a seek as we move through the hfile; we save having to do an ex...
, 2016-04-27, 23:48
[HBASE-15713] Backport "HBASE-15477 Do not save 'next block header' when we cache hfileblocks"
...Backport "HBASE-15477 Do not save 'next block header' when we cache hfileblocks"The backport involves removing support for hfile v1/hfileblockv1 support which was our default before 0.92. Th...
, 2016-04-27, 00:14
[HBASE-15012] Flakies: Umbrella issue to hang current set of flakies from
...Flakies are tests that have failed a few times in the last set of test runs. Hang any flaky issues off here....
, 2016-04-25, 23:44
[HBASE-15392] Single Cell Get reads two HFileBlocks
...As found by Daniel "SystemTap" Pol, a simple Get results in our reading two HFileBlocks, the one that contains the wanted Cell, and the block that follows.Here is a bit of custom logging tha...
, 2016-04-22, 19:21
[HBASE-15640] L1 cache doesn't give fair warning that it is showing partial stats only when it hits limit
...I was baffled looking at L1 Cache because it was stuck at 100k blocks and only 'loading' 3G of data according to the UI. When I looked in log, all the numbers looked write in the Cache summa...
, 2016-04-22, 17:20
[HBASE-15694] Bracket the spark refguide content with release it WILL be in and point to downstreamer example code
...Our Sean Busbey notes that our refguide has a section on spark-on-hbase but this feature is not currently in a released version. Our refguide note does not mention this fact. Redress. Also, ...
, 2016-04-22, 16:03
[HBASE-15366] Add doc, trace-level logging, and test around hfileblock
...What hfileblock is doing – that it overreads when pulling in from hdfs to fetch the header of the next block to save on seeks; that it caches the block and overread and then adds an ex...
, 2016-04-21, 22:53
[HBASE-15386] PREFETCH_BLOCKS_ON_OPEN in HColumnDescriptor is ignored
...We use the global flag hbase.rs.prefetchblocksonopen only and ignore the HCD setting.Purge from HCD or hook it up again (it probably worked once).Thanks to Daniel Pol for finding this one. L...
, 2016-04-21, 17:53
[HBASE-15550] Backport HBASE-12220 hedgedRead metrics to 1.2+
...hedgedRead metrics are in master branch only. They were put in branch-1 but then reverted because old versions of hadoop didn't supported hedgedReads. 1.2+ has minimal hadoop version. Retry ...
, 2016-04-15, 22:22
[HBASE-15623] Update refguide to change hadoop <= 2.3.x from NT to X for hbase-1.2.x
...This issue is about updating our hadoop supported versions grid in the prerequisites section of refguide. Here is thread proposing this change up on dev list: http://osdir.com/ml/general/201...
, 2016-04-10, 03:32
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