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[HBASE-10706] Disable writeToWal in tests where possible - HBase - [issue]
...See discussion in HBASE-10665.We should disable writeToAll in all tests except for those that test WAL specific stuff, in order to speed up the test suite....
http://issues.apache.org/jira/browse/HBASE-10706    Author: Lars Hofhansl, 2014-03-16, 01:24
[HBASE-10722] [0.94] HRegion.computeHDFSBlocksDistribution does not account for links and reference files. - HBase - [issue]
http://issues.apache.org/jira/browse/HBASE-10722    Author: Lars Hofhansl, 2014-03-14, 02:58
[HBASE-9778] Add hint to ExplicitColumnTracker to avoid seeking - HBase - [issue]
...The issue of slow seeking in ExplicitColumnTracker was brought up by Vladimir Rodionov on the dev list.My idea here is to avoid the seeking if we know that there aren't many versions to skip...
http://issues.apache.org/jira/browse/HBASE-9778    Author: Lars Hofhansl, 2014-03-12, 03:10
[HBASE-10594] Speed up TestRestoreSnapshotFromClient - HBase - [issue]
...Looking through the longest running test in 0.94 I noticed that TestRestoreSnapshotFromClient runs for over 10 minutes on the jenkins boxes (264s on my local box)....
http://issues.apache.org/jira/browse/HBASE-10594    Author: Lars Hofhansl, 2014-03-06, 03:38
[HBASE-10320] Avoid ArrayList.iterator() ExplicitColumnTracker - HBase - [issue]
...I noticed that in a profiler (sampler) run ScanQueryMatcher.setRow(...) showed up at all.In turns out that the expensive part is iterating over the columns in ExcplicitColumnTracker.reset()....
http://issues.apache.org/jira/browse/HBASE-10320    Author: Lars Hofhansl, 2014-02-26, 04:45
[HBASE-10551] Change local mode back to one RS thread by default - HBase - [issue]
...HBASE-10340/HBASE-9892 changed the default number of RS threads from 1 to 3. This is confusing. This is to set the default back to 1....
http://issues.apache.org/jira/browse/HBASE-10551    Author: Lars Hofhansl, 2014-02-26, 04:45
[HBASE-10249] TestReplicationSyncUpTool fails because failover takes too long - HBase - [issue]
...New issue to keep track of this....
http://issues.apache.org/jira/browse/HBASE-10249    Author: Lars Hofhansl, 2014-02-26, 04:45
[HBASE-10489] TestImportExport fails in 0.94 with Hadoop2 - HBase - [issue]
...With HBASE-10363 fixed, we're now seeing other M/R tests failing.TestImportExport is one of them....
http://issues.apache.org/jira/browse/HBASE-10489    Author: Lars Hofhansl, 2014-02-26, 04:45
[HBASE-10501] Improve IncreasingToUpperBoundRegionSplitPolicy to avoid too many regions - HBase - [issue]
...During some (admittedly artificial) load testing we found a large amount split activity, which we tracked down the IncreasingToUpperBoundRegionSplitPolicy.The current logic is this (from the...
http://issues.apache.org/jira/browse/HBASE-10501    Author: Lars Hofhansl, 2014-02-19, 02:20
[HBASE-10552] HFilePerformanceEvaluation.GaussianRandomReadBenchmark fails sometimes. - HBase - [issue]
...GaussianRandomReadBenchmark generates seek keys by using a Gaussian distribution with the mean of N/2 and a sigma of N/10 (N = number of rows used)  and using this key directly to seek ...
http://issues.apache.org/jira/browse/HBASE-10552    Author: Lars Hofhansl, 2014-02-19, 02:18
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