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Re: RegionServer crash without any errors (compaction?) - HBase - [mail # user]
...Did you look at your GC logs? Probably the compaction process is running your region server out of memory. Can you provide more details on your setup? Max heap size? Max Region HFile size...
...?   Regards, Dhaval   ________________________________  From: John  To: [EMAIL PROTECTED]  Sent: Thursday, 7 November 2013 10:51 AM Subject: RegionServer crash without any errors (compaction...
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   Author: Dhaval Shah, 2013-11-07, 15:59
Parent region data not deleted after compact - HBase - [mail # user]
... regions.In my opion, they are parent region directories that forget to clean. I'm try to do major_compact on this table now,but i don't know if this can solve the problem. Anyone can help to clear...
   Author: Eason Lee, 2012-04-05, 08:14
Re: Tables gets Major Compacted even if they haven't changed - HBase - [mail # user]
...Thanx for the discussion guys.  @Anil, we have turned off major compaction in the settings. This is a script which is run manually to make sure all tables get major compacted ever so often...
... to increase data locality. In our case, there is some collateral damage of compacting unchanged regions.  I was planning to rework the script to compact regions and not tables by querying how many...
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   Author: Premal Shah, 2013-09-10, 18:39
Can I major compact a specific column family? - HBase - [mail # user]
...Reading through the code, it seems, compaction flow is not designed to allow per column family compaction. I am not able to understand why? Please comment.  -Shrijeet ...
   Author: Shrijeet Paliwal, 2011-06-27, 22:41
double assignment WAS: Errors after major compaction - HBase - [mail # user]
...2011-06-29 16:39:54,326 DEBUG org.apache.hadoop.hbase. master.handler.OpenedRegionHandler: Opened region gs_raw_events,GSLoad_1308518553_168_WEB204,1308533970928.584dac5cc70d8682f71c4675a843...
   Author: Ted Yu, 2011-07-07, 10:41
Re: RegionServer goes down in Compact SplitThread - HBase - [mail # user]
... will happen after a major compaction, but as per the logs, the compaction request comes after a split.  Regards, Skanda    On Thu, Aug 8, 2013 at 5:25 PM, Jean-Marc Spaggiari <[EMAIL PROTECTED]  ...
   Author: Prasad GS, 2013-08-08, 13:25
RE: [HBase 0.92.1] Too many stores files to compact, compaction moving slowly - HBase - [mail # user]
...Hi Shrijeet Regarding your last question about the region growing bigger The following points could be one reason  When you said your compactions are slower and also you were trying...
... to split some very big store files, every split would have created some set of reference files. By the time as more writes are happening more store files are flushed.  In the compaction algo...
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   Author: Ramkrishna.S.Vasudevan, 2012-05-14, 04:29
Paid OSS task for performing manual major compactions - HBase - [mail # user]
...Mozilla recently had to turn off automatic scheduled major compactions  because if they happen during our peak load time, they cause an IO delay  that can destabilize our client...
... applications.  We need to put a replacement system in place as soon as possible that  can initiate the major compaction and ensure that it successfully  completed (See HBASE-2770). It would be nice...
   Author: Daniel Einspanjer, 2010-10-05, 18:11
Re: Additional disk space required for Hbase compactions.. - HBase - [mail # user]
...Thank you Jonathan for raising the Jira and attaching a patch  I was looking for more info on how major compactions and minor  compactions work and google found me this page:  http...
...://wiki.apache.org/hadoop/Hbase/HbaseArchitecture  After reading the wiki page and Google Bigtable paper, it seems to me  that there is a difference between Google 'minor compactions' andHbase  'minor compactions'.  In google, a minor compaction...
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   Author: TuX RaceR, 2010-05-18, 08:06
Is hbase call delete request for old hfile(storeFile) file if minor/major compaction happen for them - HBase - [mail # user]
...Is hbase call delete request for old hfile(storeFile) file if minor/major compaction happen for them and generate new hfile and store it in hdfs. for minor compaction how it will get size...
... of every hfile. lets we have 20 no. of hfiles for a CF and minor compaction wants to perform. Will it download all hfile and decide compaction have to do or not. Or it have in-memory hfile's size...
   Author: Upendra Yadav, 2014-02-25, 07:08
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