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[HBASE-10015] Replace intrinsic locking with explicit locks in StoreScanner - HBase - [issue]
...Did some more profiling (this time with a sampling profiler) and StoreScanner.peek() showed up a lot in the samples. At first that was surprising, but peek is synchronized, so it seems a lot...
http://issues.apache.org/jira/browse/HBASE-10015    Author: Lars Hofhansl, 2013-11-27, 21:42
[HBASE-9956] Remove keyLength cache from KeyValue - HBase - [issue]
...See discussion in HBASE-9935. Currently KeyValue caches the keyLength in order to avoid decoding the key length in getKeyLength() repeatedly.Benchmarking outside of a profiler revealed no im...
http://issues.apache.org/jira/browse/HBASE-9956    Author: Lars Hofhansl, 2013-11-26, 05:53
[HBASE-9971] Port part of HBASE-9958 to 0.94 - change lock scope in locateRegion - HBase - [issue]
...Simple fix that we should have in 0.94 as well....
http://issues.apache.org/jira/browse/HBASE-9971    Author: Lars Hofhansl, 2013-11-26, 05:53
[HBASE-9993] 0.94: HBASE-9865 breaks coprocessor compatibility with WALEdit. - HBase - [issue]
...  public List<KeyValue> getKeyValues() {Was changed to   public ArrayList<KeyValue> getKeyValues() {This break existing coprocessors (such as those used in Ph...
http://issues.apache.org/jira/browse/HBASE-9993    Author: Lars Hofhansl, 2013-11-26, 05:53
[HBASE-10028] Cleanup metrics documentation - HBase - [issue]
...The current documentation of the metrics is incomplete and at point incorrect (HDFS latencies are in ns rather than ms for example).We should clean this up and add other related metrics as w...
http://issues.apache.org/jira/browse/HBASE-10028    Author: Lars Hofhansl, 2013-11-26, 01:19
[HBASE-9799] Change Hadoop 1.2 dependency to 1.2.1 - HBase - [issue]
...The Hadoop 1.2 profile is currently 1.2.0. We should update that to 1.2.1.Was:This will switch the default Hadoop profile to 1.2.1.The Hadoop 1.0.x (1.0.4 currently) will remain and we will ...
http://issues.apache.org/jira/browse/HBASE-9799    Author: Lars Hofhansl, 2013-11-15, 16:54
[HBASE-9935] Slight perf improvement: Avoid KeyValue.getRowLength() at some places - HBase - [issue]
...Here's an example:KeyValue.createLastOnRow(          kv.getBuffer(), kv.getRowOffset(), kv.getRowLength(),          kv.getBuffer()...
http://issues.apache.org/jira/browse/HBASE-9935    Author: Lars Hofhansl, 2013-11-12, 01:01
[HBASE-9711] Improve HBASE-9428 - avoid copying bytes for RegexFilter unless necessary - HBase - [issue]
...Parent patch copies input for RegexFilter unconditionally.We should only do this if the KV portion into the passed byte[] is < 1/2 of the passed byte[]. Otherwise we waste cycles.Patch is...
http://issues.apache.org/jira/browse/HBASE-9711    Author: Lars Hofhansl, 2013-11-08, 00:03
[HBASE-9789] Change logging for Coprocessor exec call to trace - HBase - [issue]
...Currently both RegionServer and HMaster log (debug) this"Received dynamic protocol exec call with protocolName <class>"on each coprocessor exec call.We just filled our RegionServer log...
http://issues.apache.org/jira/browse/HBASE-9789    Author: Lars Hofhansl, 2013-11-08, 00:03
[HBASE-9732] Static AtomicLong updated in StoreFileScanner every (re)seek - HBase - [issue]
...To verify a single test case, we update a static AtomicLong for every seek performed on a RegionServer. This is especially bad with multiple seeks going on at the same time.W.T.F...?This pen...
http://issues.apache.org/jira/browse/HBASE-9732    Author: Lars Hofhansl, 2013-11-08, 00:03
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