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rpc call logging - HBase - [mail # user]
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...It would be super nice to have RPC query call logging per region server. Sometimes we have 'hot' regions getting hit by users, and this drives the CPU on a particular RS server up, exc...
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Author: Jack Levin,
2011-04-09, 19:22
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Re: file is already being created by NN_Recovery - HBase - [mail # user]
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...I would vote for that, will safe me a number of manual steps. -Jack On Fri, Apr 8, 2011 at 12:48 PM, Andrew Purtell wrote tory, delete the original, then split the copies. ...
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Author: Jack Levin,
2011-04-09, 19:19
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Re: timing out for hdfs errors faster - HBase - [mail # user]
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...I meant to say "dfs.datanode.socket.read.timeout" -Jack On Thu, Apr 7, 2011 at 10:54 AM, Jack Levin wrote: wrote: 5184...
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Author: Jack Levin,
2011-04-07, 17:54
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Re: timing out for hdfs errors faster - HBase - [mail # user]
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...Thanks, How about setting hbase-site.xml with dfs.datanode.socket.write.timeout dfs.datanode.socket.read.write.timeout If tcp connection is established, but harddrive fails right...
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Author: Jack Levin,
2011-04-07, 17:54
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Re: file is already being created by NN_Recovery - HBase - [mail # user]
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...If you have socket.dfs.timeout set to 0, consider removing it, most of our issues like that went away after that. This problem occurs when you have datanode crash, and there is a confl...
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Author: Jack Levin,
2011-04-07, 16:41
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Re: timing out for hdfs errors faster - HBase - [mail # user]
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...Another question, why would dfsclient setting for sockettimeout (for data reading) would be set so high by default if HBASE is expected to be real time? Shouldn't it be few seconds (5?...
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Author: Jack Levin,
2011-04-07, 16:19
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timing out for hdfs errors faster - HBase - [mail # user]
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...Hello, I get those errors sometimes: 2011-04-07 07:49:41,527 WARN org.apache.hadoop.hdfs.DFSClient: Failed to connect to /10.103.7.5:50010 for file /hbase/media_data/1c95bfcf0dd19800b1...
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Author: Jack Levin,
2011-04-07, 14:58
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Re: question about RS to DN timeouts - HBase - [mail # user]
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...What I meant to say, suppose RS hdfs client is trying to read blocks form a datanode, and I reboot or crash that datanode right at that time, I would like RS hdfs client to switch to another...
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Author: Jack Levin,
2011-04-05, 17:05
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question about RS to DN timeouts - HBase - [mail # user]
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... hbase.client.pause 1000 General client pause value. Used mostly as value to wait before running a retry of a failed get, ...
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Author: Jack Levin,
2011-04-04, 21:43
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Re: major hdfs issues - HBase - [mail # user]
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...Thanks to everyone chiming in to help me fix this issue... It has now been resolved, JD and I spend some time looking at thread limits and apparently, our userid 'hadoop' had nproc lim...
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Author: Jack Levin,
2011-03-31, 02:31
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