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0.94.23RC tomorrow - HBase - [mail # dev]
...Let me know if there's anything that should go in.Thanks. ...
   Author: lars hofhansl, 2014-08-26, 00:14
Re: HBase 0.94 vs 0.98 - HBase - [mail # user]
...Hi Flavio,all new users should go to 0.98.That said, 0.94 is probably still the most widely used version and has been the most battle tested at this point.HBase is open source :) 0.94 will b...
   Author: lars hofhansl, 2014-08-25, 18:50
Re: Should scan check the limitation of the number of versions? - HBase - [mail # dev]
...Queries of past time ranges only work correctly when KEEP_DELETED_CELLS is enabled for the column families.________________________________ From: tobe To: hbase-dev  Cc: "[EMAIL PR...
   Author: lars hofhansl, 2014-08-25, 18:21
[expand - 1 more] - Re: GC peaks during major compaction - HBase - [mail # user]
...You want to decrease your young gen (defaults to 40% of heap, which is *way* to big for HBase).I wrote the reasoning here: http://hadoop-hbase.blogspot.com/2014/03/hbase-gc-tuning-observatio...
   Author: lars hofhansl, 2014-08-21, 06:47
[expand - 3 more] - Re: A better way to migrate the whole cluster? - HBase - [mail # dev]
...Tobe,did any of this fix your problem?________________________________ From: lars hofhansl To: "[EMAIL PROTECTED]"  Sent: Friday, August 15, 2014 10:57 AMSubject: Re: A better way ...
   Author: lars hofhansl, 2014-08-19, 06:33
Re: How are split files distributed across Region servers? - HBase - [mail # user]
...I'd change the max file size to 20GB. That'd give you 5000 regions for 100TB.________________________________ From: Jianshi Huang To: [EMAIL PROTECTED] Sent: Monday, August 18, 2014 12:...
   Author: lars hofhansl, 2014-08-19, 06:32
Re: May I ask why HBase choose to partition data by range? - HBase - [mail # dev]
...It does so by splitting the row keys into ranges. The application controls the row keys, hence it can choose as row key whatever it like. If you prefix the row key with the prefix of the has...
   Author: lars hofhansl, 2014-08-17, 04:46
Re: Hbase region count and RS count for 2TB+ - HBase - [mail # user]
...HBase initially tries to spread the load out to more region servers by splitting regions early when there aren't many (per table).As more regions are seen split size approaches the configure...
   Author: lars hofhansl, 2014-08-15, 18:13
Re: HBase client hangs after client-side OOM - HBase - [mail # user]
...Hey Ted,so this is a problem with the ZK client, it seems to not clean itself up correctly upon receiving an exception at the wrong moment.Which version of ZK are you using?From: Ted Tuttle ...
   Author: lars hofhansl, 2014-08-14, 00:36
Re: Re: Any fast way to random access hbase data? - HBase - [mail # user]
...Yikes. Don't do that. :)Even if your blocks are in the OS cache, upon each single Get HBase needs to re-allocate a new 64k block on the heap (including the index blocks).If you see no chance...
   Author: lars hofhansl, 2014-08-13, 22:51
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