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Re: Understanding HBase log output regarding memstore flush - HBase - [mail # user]
...Hi Asaf,  I believe HDFS will see the 35.5MB worth of data.  The 132.7MB is the size of the data in the memstore with the overhead of the ConcurrentSkipListMap which is a pointer-h...
   Author: Matt Corgan, 2012-06-28, 17:33
[expand - 1 more] - Re: Performance Testing - HBase - [mail # dev]
...just brainstorming =)  Some of those are motivated by the performance tests i wrote for data block encoding: Link.  In that directory:  * SeekBenchmarkMain gathers all of the ...
   Author: Matt Corgan, 2012-06-21, 22:05
Re: FindBugs-related build error - HBase - [mail # dev]
...I noticed you are missing the "s" on -DskipTests (mvn -DskipTest package), but that's probably unrelated.   On Wed, Jun 20, 2012 at 7:47 PM, Ted Yu  wrote:  ...
   Author: Matt Corgan, 2012-06-21, 05:28
[HBASE-6162] Move KeyValue to hbase-common module - HBase - [issue]
...pull KeyValue up to hbase-common moduleThis is part of the modularization strategy in HBASE-5977, and is specifically necessary to modularize HBASE-4676.also brings these classes to hbase-co...
http://issues.apache.org/jira/browse/HBASE-6162    Author: Matt Corgan, 2012-06-18, 21:18
[HBASE-6093] Flatten timestamps during flush and compaction - HBase - [issue]
...Many applications run with maxVersions=1 and do not care about timestamps, or they will specify one timestamp per row as a normal KeyValue rather than per-cell.Then, DataBlockEncoders like t...
http://issues.apache.org/jira/browse/HBASE-6093    Author: Matt Corgan, 2012-05-29, 23:51
[expand - 1 more] - Re: Disable timestamp in HBase Table a.k.a Disable Versioning in HBase Table - HBase - [mail # user]
...i couldn't get it finished in time for 0.94, but i think it's very likely to be in 0.96, possibly with a backport to .94.  Scan speed should improve if i have time to optimize the cell ...
   Author: Matt Corgan, 2012-05-29, 23:46
Re: Regarding memstoreTS in bulkloaded HFiles - HBase - [mail # dev]
...Hi Anoop,  I'm working on the Trie encoding you mentioned.  Just to confirm - it does support encoding the memstore timestamp, and in the case that they are all 0, it will not take...
   Author: Matt Corgan, 2012-05-29, 20:27
Re: Planning to commit HBASE-6050 and HBASE-6070 - HBase - [mail # dev]
...The patch applied for me, and everything is looking good except I'm getting errors on the Unsafe like the following in eclipse.  I have a 1.7 jdk, and get the same error when setting ja...
   Author: Matt Corgan, 2012-05-26, 06:34
[expand - 1 more] - Re: modularizing trunk - HBase - [mail # dev]
...Sorry about that - my intention was not to decide all future module names, just to avoid having both core and common and to illustrate how we were heading that direction.   On Wed, May ...
   Author: Matt Corgan, 2012-05-09, 20:34
[HBASE-5720] HFileDataBlockEncoderImpl uses wrong header size when reading HFiles with no checksums - HBase - [issue]
...When reading a .92 HFile without checksums, encoding it, and storing in the block cache, the HFileDataBlockEncoderImpl always allocates a dummy header appropriate for checksums even though t...
http://issues.apache.org/jira/browse/HBASE-5720    Author: Matt Corgan, 2012-04-13, 18:32
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