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[expand - 4 more] - Compaction throttling and per-region compaction automation - HBase - [mail # user]
...Hi,  Major compactions are..... you know... :) So I saw there is https://issues.apache.org/jira/browse/HBASE-3743 for throttling them.  We are about to try the per-region compaction, so I...
   Author: Otis Gospodnetic, 2012-11-06, 18:38
[expand - 2 more] - HBase (Compaction and Region) Event Listeners - HBase - [mail # user]
... that would allow one to listen for thing like compactions.... or any other important HBase events? Thanks, Otis Performance Monitoring * Log Analytics * Search Analytics Solr & Elasticsearch Support...
   Author: Otis Gospodnetic, 2014-05-29, 03:40
[expand - 1 more] - Major vs Minor compactions - HBase - [mail # user]
...Hi,  I am working on some compaction coprocessors for a column family with versions set to 1. I am using the preCompact hook to wrap a scanner around the compaction scanner.  I wanted...
... to know what to expect from the minor compaction output. Can I assume the following: 1) Versions for each cell will be 1 2) Delete markers will be retained 3) Corresponding versions older than...
   Author: Varun Sharma, 2013-05-29, 20:27
[expand - 4 more] - Re: Question about compactions - HBase - [mail # user]
...Hi,  A few pointers: http://search-hadoop.com/m/heoc617XV29/otis+compactions&subj=Re+How+to+check+if+a+major_compact+is+done+ http://search-hadoop.com/m/BDx4S1jMjF92/otis+compactions&subj=How+to+know+it+s+time+for+a+major+compaction...
...+ http://search-hadoop.com/m/9oN1DqPx2R1/otis+compactions&subj=Compaction+throttling+and+per+region+compaction+automation http://search-hadoop.com/m/u0hsW82Vcr/otis+compactions&subj=How+to+pick+which+region+s+to+major+compact...
   Author: Otis Gospodnetic, 2013-03-22, 01:13
[expand - 2 more] - Reducing compaction queue more efficiently - HBase - [mail # user]
... entries in my compaction queue (~ 200 per regionserver). Unfortunately, HBase now is slow when pushing new data into it and it just compacts with 0.02 per second (getting also "WARN org...
....apache.hadoop.ipc.HBaseServer: (operationTooSlow)" in log files). If I want to trigger the compaction manually, there's nothing happening: hbase(main):001:0> compact 'images' 0 row(s) in 1.3690 seconds hbase(main):002:0> major_compact...
[+ show more]
   Author: Sven Herzky, 2014-03-27, 11:37
[expand - 13 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
[expand - 3 more] - Problem In Understanding Compaction Process - HBase - [mail # user]
...Hi: Guys        I have some problem in understanding the compaction process, Can someone shed some light on me, much appreciate. Here is the problem:        Region Server after successfully...
... generate the final compacted file, it going through two steps:        1. move the above compacted file into region's directory        2. delete replaced files.         the above two steps...
   Author: Anty, 2013-02-20, 03:10
[expand - 5 more] - Effect of region size on compaction performance - HBase - [mail # user]
.... However, I am worried many regions will cause longer overall compactions of the HBase data. Is this the case? I am thinking about extending TableInputFormat to override the 1-map...
   Author: David Koch, 2014-03-23, 01:58
[expand - 5 more] - Never ending major compaction? - HBase - [mail # user]
..., and there is a lot of horsepower behind it.  I asked a major_compaction few hours ago. Let's say, about 5 hours ago. and it's still compacting! But all servers activities seems to be null. CPU usage...
... is almost 0.  There is nothing on the master logs.  How can I see what's going on? Is there a way to see the compaction queue?  JM ...
   Author: Jean-Marc Spaggiari, 2013-01-01, 19:42
[expand - 8 more] - Checking major compaction - HBase - [mail # user]
...Hi all,  Is there a way to check if major compaction is running or not on a table.  Thank you Kiran Sarvabhotla  ...
   Author: kiran, 2012-10-18, 06:12
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