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Re: Unscientific comparison of fully-cached zipfian reading - HBase - [mail # dev]
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...On Wed, May 22, 2013 at 10:36 AM, lars hofhansl wrote: Ah sorry to have focused on that. Re-reading your email, it seems we tested different things. In my case, whatever c...
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Author: Jean-Daniel Cryans,
2013-05-23, 17:00
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Re: Unscientific comparison of fully-cached zipfian reading - HBase - [mail # dev]
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...On Tue, May 21, 2013 at 6:08 PM, lars hofhansl wrote: That's a lot of variance. In my test the latencies I wrote there were stable around those numbers. So we have a different wa...
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Author: Jean-Daniel Cryans,
2013-05-22, 17:23
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[HBASE-8592] [documentation] some updates for the reference guide regarding recent questions on the ML - HBase - [issue]
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...I looked at the recent questions that were asked on the mailing list and tried to filled some of our gaps....
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http://issues.apache.org/jira/browse/HBASE-8592
Author: Jean-Daniel Cryans,
2013-05-22, 13:52
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Re: PleaseHoldException when Master is clearly running as JPS - HBase - [mail # user]
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...I see: 2013-05-21 17:15:07,914 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_FAILED_OPEN, server=hbase-regionserver1,60020,1369170595340, reg...
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Author: Jean-Daniel Cryans,
2013-05-21, 21:33
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Re: What is in BlockCache? - HBase - [mail # user]
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...The reference guide has a pretty good section about this: http://hbase.apache.org/book.html#block.cache What do you think is missing in order to fully answer your question? Thx, ...
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Author: Jean-Daniel Cryans,
2013-05-21, 18:55
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Re: How does client connects to Hbase server - HBase - [mail # user]
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...I guess you are referring to http://hbase.apache.org/book.html#client_dependencies ? The thing is by default hbase.zookeeper.quorum is localhost, so your client will look at your local...
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Author: Jean-Daniel Cryans,
2013-05-21, 18:39
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[HBASE-5349] Automagically tweak global memstore and block cache sizes based on workload - HBase - [issue]
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...Hypertable does a neat thing where it changes the size given to the CellCache (our MemStores) and Block Cache based on the workload. If you need an image, scroll down at the bottom of this l...
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http://issues.apache.org/jira/browse/HBASE-5349
Author: Jean-Daniel Cryans,
2013-05-21, 09:52
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Re: Questions about HBase replication - HBase - [mail # user]
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...In my experience this hasn't been an issue. Keep in mind that the RS will only replicate what's in the queue when it was recovered and nothing more. It means you have one more thread reading...
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Author: Jean-Daniel Cryans,
2013-05-20, 23:14
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Re: Questions about HBase replication - HBase - [mail # user]
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...On Mon, May 20, 2013 at 3:48 PM, Varun Sharma wrote: We only move the znodes, no data is actually being re-written. The WAL's znode reference is deleted immediately. The a...
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Author: Jean-Daniel Cryans,
2013-05-20, 22:54
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[HBASE-4462] Properly treating SocketTimeoutException - HBase - [issue]
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...SocketTimeoutException is currently treated like any IOE inside of HCM.getRegionServerWithRetries and I think this is a problem. This method should only do retries in cases where we are pret...
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http://issues.apache.org/jira/browse/HBASE-4462
Author: Jean-Daniel Cryans,
2013-05-20, 20:00
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