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[expand - 4 more] - Re: Recovering from corrupt blocks in HFile - HBase - [mail # user]
... the corruption occurred when there was a compaction. Does that mean that during the compaction, it tried to read and compact a bad block and ignored the other two copies of the bad block that could...
... have been good? Was it that at the time of writing the compacted data, there was a corruption that then was passed on two the other two copies? I guess the point I’m trying to raise...
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   Author: Michael Segel, 2015-03-20, 01:49
Re: client call scan on some region hang - HBase - [mail # user]
...sorry , forgot to attach the version: 0.94.15; and i call compact (as well as many times flush region) from hbase shell didn't take effect, no compaction happened; 2015-01-06 18:26 GMT+08...
   Author: Bi,hongyu—mike, 2015-01-06, 10:37
OutOfOrderScannerNextException consistently killing mapreduce jobs - HBase - [mail # user]
... 1086 lease expired on region table,8bf8fc3cd0e842c00fb4e556bbbdcd0f,1420155383100.19f5ed7c735d33b2cf8997e0b373a1a7 in addition there are reports of compactions (not sure if relevant at all...
...): regionserver.HStore: Completed major compaction of 3 file(s) in cf of table,fc0caf49fa871a61702fa3781e160101,1420728621152.9ccc317ca180cabde13864d4600c8693. into efd8bec4dbf54ccca5f1351bfe9890c3(size=5.9 G...
   Author: Mateusz Kaczynski, 2015-06-25, 17:12
Re: readAtOffset error when reading from HFiles - HBase - [mail # user]
... there's something else going on, since after a compaction everything works... On Tue, May 12, 2015 at 9:55 AM, Ted Yu  wrote:   ...
   Author: donmai, 2015-05-12, 15:10
[expand - 7 more] - Re: Slow Get Performance (or how many disk I/O does it take for one non-cached read?) - HBase - [mail # user]
...bq. #3. Custom compaction Stripe compaction would be in the upcoming 0.98.0 release. See HBASE-7667 Support stripe compaction Cheers On Fri, Jan 31, 2014 at 5:29 PM, Vladimir Rodionov...
   Author: Ted Yu, 2014-02-01, 01:44
Re: HBase memstore flush configurations - HBase - [mail # user]
... cause a compaction. After the compaction completes, old hfiles are not deleted, but moved to archive directory, since I have snapshots referencing to them. After running for 6 days with default...
   Author: Akmal Abbasov, 2015-05-08, 23:41
[expand - 1 more] - why  major_compaction does more performance consumption than  minor_compaction ? - HBase - [mail # user]
...hello everyone! Differenct between them: 1、minor_compact will select best storeFiles to compact。 2、major_compact will select all storeFiles to compact and do some clean work...
...。 RegionServer holds only one compactSplitThread ,and only one compact task run ! 3、The compaction task just scans all the storefiles and then merge one, so I hold the opinon that major compact only...
   Author: Fx_Bull, 2014-06-20, 09:11
[expand - 3 more] - Re: introducing nodes w/ more storage - HBase - [mail # user]
... or care of the region layout, nor the locality we worked so hard to build through compactions. Furthermore, once the HDFS balancer has saved us from running out of space on the smaller nodes, we...
... will run a major compaction, and re-write all of the HBase data right back to where it was before. one is the number of regions managed by a region server that’s HBase’s load, right...
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   Author: Kevin Odell, 2015-04-02, 12:42
[expand - 1 more] - Re: Streaming data to htable - HBase - [mail # user]
... the number of these regions? If yes, each of the growing region will spawn lots of compactions while writing data, how to deal with the compaction storm? If no, are you only appending data...
   Author: hongbin ma, 2015-02-16, 11:30
Re: Four regions were lost and how to recover ? - HBase - [mail # user]
.... My collegue triggerred split and compact for that table before I run "hbase hbck E_MP_DAY_READ_201409", and it reported that the table was consistent. After the split and compact, I found...
... and compact.   ...
   Author: Tao Xiao, 2014-10-14, 12:17
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB