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Re: Disabled automated compaction - table still compacting - HBase - [mail # user]
...Silly question...   Why are you trying to disable automated compaction?   And then the equally silly question... are you attempting to run  full compactions manually?    On Jul 9, 2013...
   Author: Michael Segel, 2013-07-09, 16:53
[expand - 3 more] - Re: HBase without compactions? - HBase - [mail # user]
...He asked for a compactionless version.  You still have compactions w a stripe compaction.    On Feb 18, 2013, at 10:54 PM, Ted Yu  wrote:  ...
   Author: Michael Segel, 2013-02-19, 05:46
RE: Compactions in busy system(s) - HBase - [mail # user]
...  "hbase(main):003:0> major_compact  ERROR: Wrong # of arguments(0 for 1)  Here is some help for this command: Run major compaction on passed table or pass a region row to major compact...
... an individual region "  So it looks like you can major_compact a region. Should be easy to open a table, get the start row of each region and then  one by one do a major compaction. That would be less...
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   Author: Michael Segel, 2011-04-05, 12:16
Re: scan is slower after bulk load - HBase - [mail # user]
...Just a guess... have you done any compactions on the table post bulk load?   On Nov 12, 2012, at 8:44 AM, Marcos Ortiz  wrote:  ...
   Author: Michael Segel, 2012-11-12, 15:45
Re: delete rows without writing HLog may be appear in the future? - HBase - [mail # user]
...Some time later?   Time of course is relative, so I have to ask what occurred between the write and the delete?  How much time? Did you have any compactions in between the write...
   Author: Michael Segel, 2012-11-21, 15:09
[expand - 3 more] - Re: How to config hbase0.94.2 to retain deleted data - HBase - [mail # user]
...I would suggest that you use your coprocessor to copy the data to a  'backup' table when you mark them for delete.  Then as major compaction hits, the rows are deleted from the main table...
   Author: Michael Segel, 2012-10-21, 23:34
Re: long garbage collecting pause - HBase - [mail # user]
... it comes to tuning.   -Mike  On Oct 2, 2012, at 9:20 AM, Damien Hardy  wrote:  "split/compaction hbase.hregion.max.filesize in http://hbase.apache.org/book/important_configurations.html#bigger.regions ...
   Author: Michael Segel, 2012-10-02, 14:23
Re: Garbage collection issues - HBase - [mail # user]
... the Hadoop primary namenode and the  Hbase master. 3 servers form the Zookeeper quorum. -XX:+CMSIncrementalMode -XX:+UseParNewGC  -XX:CMSInitiatingOccupancyFraction=70" graphs: compactions happen...
... and a slight increase in request_processing_time compactions) compactions happen and a slightly larger increase in  request_processing_time compactions and increase in request_processing_time 3000ms...
   Author: Michael Segel, 2012-05-18, 12:19
RE: Design/Schema questions - HBase - [mail # user]
...  rote:  I think one of the advantages in not writing directly to HBase is that when  you write to HBase you have table splits and compactions along with GC. De pending on the rate...
   Author: Michael Segel, 2011-07-27, 03:01
RE: hbase table as a queue. - HBase - [mail # user]
... I'm not sure how they are doing this, but just a quick thought...  You can increase the file size 1-2GB as an example and then run compactions  on a regular basis to clean up rows deleted...
   Author: Michael Segel, 2011-07-19, 16:00
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