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[HBASE-3404] Compaction Ordering for Bulk Import Files
...We got into an issue today where we were using HFileOutputFormat to perform an incremental load on an already-large cluster. Because bulk-loaded files don't have a sequence ID, they ar...
, 2015-04-10, 17:54
[HBASE-5867] Improve Compaction Throttle Default
...We recently had a production issue where our compactions fell behind because our compaction throttle was improperly tuned and accidentally upgraded all compactions to the large pool. T...
, 2015-03-13, 13:43
[HBASE-5890] SplitLog Rescan BusyWaits upon Zk.CONNECTIONLOSS
...We ran into a production issue yesterday where the SplitLogManager tried to create a Rescan node in ZK. The createAsync() generated a KeeperException.CONNECTIONLOSS that was immedately...
, 2015-01-10, 02:13
[HBASE-5972] RegionServer Hangs on Compaction upon NameNode Death
...Noticed 20-minute hangs when doing a namenode kill test on our production shadow cluster. All regionservers terminated except one, which got stuck with the following. There might be some rac...
, 2015-01-10, 02:10
[HBASE-4766] Add Instrumentation for Put Latencies at Critical Paths
...Part of 89-fb to 92 port. Add instrumentation to collect: memstore insert time RWCC wait time (the time we wait after an write operation to, for RWCC read point to advance). row lock acquisi...
, 2014-12-24, 20:07
[HBASE-4744] Remove @Ignore for testLogRollAfterSplitStart
...We fixed a data loss bug in HBASE-2312 by adding non-recursive creates to HDFS. Although a number of HDFS versions have this fix, the official HDFS 0.20.205 branch currently doesn't, s...
, 2014-12-02, 23:12
[HBASE-3319] Add File Count Threshold to HBCK
...A useful check to add to HBCK is a way to estimate the max # of files that a cluster should have and raise a warning/error if the file count goes above that threshold. We ran into an ...
, 2014-07-18, 17:36
[HBASE-3242] HLog Compactions
...Currently, our memstore flush algorithm is pretty trivial. We let it grow to a flushsize and flush a region or grow to a certain log count and then flush everything below a seqid. &nbs...
, 2014-07-18, 17:33
[HBASE-4896] Add Phabricator + ARC Installation to Help Doc
...Need to add help documentation to discuss the basic way of interoperating with Phabricator (what it is, submitting diffs, etc). Also should add installation instructions for using the ...
, 2014-06-08, 22:37
[HBASE-3129] Fix Min/Avg/Max Values for FS Latency Metrics
...Currently RegionServer FS latency metrics are a little deceiving. Because fs*Latency is only updated during RegionServerMetrics::doUpdates, you are really getting the min/max of the la...
, 2014-06-08, 15:04
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