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Re: RowCounter ClassNotFoundException: com.google.common.base.Preconditions - HBase - [mail # user]
...I'd bet this is the same issue that got you the strange AbstractMethodErrorexception you've seen before.  Checking the code, we do not explicitly set com.google.common.base.Precondition...
   Author: lars hofhansl, 2013-12-24, 04:48
Re: Schema Design Newbie Question - HBase - [mail # user]
...The HDFS NameNode will have to deal with lots of small files (currently HBase cannot flush column families independently, so if one is flushed all of them are). The other reason is that scan...
   Author: lars hofhansl, 2013-12-24, 00:12
Re: Consistent Backup strategy - HBase - [mail # user]
...We're doing a version of that at Salesforce (we have our own M/R jobs, but the principle is the same). Soon we'll run the backup M/R job over a snapshot for performance reasons, but even the...
   Author: lars hofhansl, 2013-12-23, 21:50
Re: secondary index feature - HBase - [mail # user]
...The devil is often in the details. On the surface it looks simple.  How specifically are the stale indexes ignored? Are the guaranteed to be no races? Is deletion handled correctly?Does...
   Author: lars hofhansl, 2013-12-22, 22:37
[expand - 3 more] - Re: HBase returns old values even with max versions = 1 - HBase - [mail # dev]
...With the restrictions and optimizations that HBase does, this change in behavior is simply not possible. In your usecase, can't you just retrieve the latest state of a row and then check the...
   Author: lars hofhansl, 2013-12-22, 22:29
[expand - 2 more] - Re: Performance tuning - HBase - [mail # user]
...You would have to measure the incoming/outgoing traffic on the affected machine.   The easiest is to periodically check the output of ifconfig. If all data is local and the query just r...
   Author: lars hofhansl, 2013-12-22, 04:45
[expand - 5 more] - Re: [VOTE] The 1st hbase 0.94.15 release candidate is available for download - HBase - [mail # dev]
...Thanks Aditya.   Let's do that next month (Jan) for 0.94.16.     ________________________________  From: Aditya  To: "[EMAIL PROTECTED]" ; lars hofhansl   Sent:...
   Author: lars hofhansl, 2013-12-20, 07:51
Re: HBASE-7088 ready to commit ;) - HBase - [mail # dev]
...+1  Committers should use their good judgement. It should be possible to simply commit low risk bugfixes without additional +1's after a reasonable time. Committers should be smart enou...
   Author: lars hofhansl, 2013-12-19, 01:28
[expand - 1 more] - Re: Rolling 0.94.15RC0 tomorrow. - HBase - [mail # dev]
...The RC is cut. Seems impossible to get a jenkins run in at this point. Will let's it sit until tomorrow morning, and build locally if there was no run by then.    _________________...
   Author: lars hofhansl, 2013-12-18, 07:32
Re: Problems with hbase.hregion.max.filesize - HBase - [mail # user]
...Did you observe anything interesting with such a large Java heap? You said you have 3G for the memstore, most of the rest is for the block cache I assume. Any long GC pauses, or other strang...
   Author: lars hofhansl, 2013-12-14, 21:14
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