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blog on compaction - HBase - [mail # user]
...Hi, Recently there have been some questions and answers on compaction in HBase.  I came up with the following blog which covers a portion of the discussions:  http...
...://zhihongyu.blogspot.com/2013/03/compactions-q.html  Special thanks go to J-D, Anoop, Ramkrishna, Sergey, Elliot and Jean-Marc.  Cheers ...
   Author: Ted Yu, 2013-03-26, 17:19
Re: HBase compaction question - HBase - [mail # user]
... compactions have reduced the number of HFiles to acceptable level. You should take a look at http://hbase.apache.org/book.html#hbase_metrics, especially 15.4.4.12. NumberOfStorefiles Cheers On Fri...
   Author: Ted Yu, 2014-02-21, 23:56
Re: Disabled automated compaction - table still compacting - HBase - [mail # user]
...Do you specify startTime and endTime parameters for the CopyTable job ?  Cheers  On Tue, Jul 9, 2013 at 4:38 AM, David Koch  wrote:  ...
   Author: Ted Yu, 2013-07-09, 14:58
Re: Deleted cells surviving compaction - HBase - [mail # user]
...Please take a look at HBASE-10118 'Major compact keeps deletes with future timestamps' Cheers On Tue, Mar 25, 2014 at 5:44 PM, David Larsen  wrote:   ...
   Author: Ted Yu, 2014-03-26, 02:23
Re: Check if a region is compacting or not - HBase - [mail # user]
...In HBaseAdmin, we have:   public CompactionState getCompactionState(final String tableNameOrRegionName)       throws IOException, InterruptedException {  FYI   On Tue, Sep 3, 2013 at 10...
   Author: Ted Yu, 2013-09-04, 14:21
Re: number of store files and compaction - HBase - [mail # user]
...bq. will hbase.hstore.blockingStoreFiles still take effect? Yes. bq. does it trigger a minor compaction or major one Minor compaction, unless all store files are selected where...
... the compaction becomes major. On Fri, Feb 7, 2014 at 8:05 AM, Yu, Libo  wrote:   ...
   Author: Ted Yu, 2014-02-07, 16:57
Re: Question about compactions - HBase - [mail # user]
...Related to this discussion, Jimmy provided some function to check for compaction state in HBASE-6033. But that is in 0.95 only.  On Thu, Mar 21, 2013 at 10:49 AM, Jean-Daniel Cryans wrote:  ...
   Author: Ted Yu, 2013-03-21, 18:08
Re: HBase without compactions? - HBase - [mail # user]
...Take a look at HBASE-7667 Support stripe compaction  Cheers  On Mon, Feb 18, 2013 at 7:30 PM, Otis Gospodnetic  wrote:  ...
   Author: Ted Yu, 2013-02-19, 04:54
Re: Reducing compaction queue more efficiently - HBase - [mail # user]
...From src/main/ruby/hbase/admin.rb :     def major_compact(table_or_region_name, family = nil)       if family == nil         @admin.majorCompact(table_or_region_name)       else...
...         # We are major compacting a column family within a region or table.         @admin.majorCompact(table_or_region_name, family)       end     end In HBaseAdmin:    * Major compact a table...
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   Author: Ted Yu, 2014-03-27, 14:52
Re: Effect of region size on compaction performance - HBase - [mail # user]
...See HBASE-5140 TableInputFormat subclass to allow N number of splits perregion during MR jobswhere there was some unfinished work.CheersOn Sat, Mar 22, 2014 at 7:28 PM, David Koch  wrot...
   Author: Ted Yu, 2014-03-23, 02:47
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