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Re: question about region assignment - HBase - [mail # user]
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...I am on 0.89-830 On Tue, Mar 29, 2011 at 10:44 AM, Ted Yu wrote: r)...
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Author: Jack Levin,
2011-03-29, 18:22
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question about region assignment - HBase - [mail # user]
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...Hello, we have this one table what about 12 regions, that is super hot with writes, for some reason most of the regions were assigned to a single server, which cause it to flush and compact ...
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Author: Jack Levin,
2011-03-29, 17:39
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Re: hdfs /DN errors - HBase - [mail # user]
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...Good Evening, anyone seen this in your logs? It could be something simple that we are missing. We also seeing that Datanodes can't be accessed from the webport 50075 every ones ...
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Author: Jack Levin,
2011-03-29, 04:28
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Re: hdfs /DN errors - HBase - [mail # user]
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...I have 5000 and and no 0 there, so its standard config whatever it might be. I had it zero before, but it was causing RS to hang on threads and would basically break RS restarts. ...
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Author: Jack Levin,
2011-03-29, 01:26
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Re: hdfs /DN errors - HBase - [mail # user]
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...sorry for continous emails... I was just able to get a jstack on high IOwait erroring DN: http://pastebin.com/jQHpeYHX -Jack On Mon, Mar 28, 2011 at 4:38 PM, Jack Levin &nb...
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Author: Jack Levin,
2011-03-28, 23:42
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Re: hdfs /DN errors - HBase - [mail # user]
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...more data: before datanode restart - Device: rrqm/s wrqm/s r/s w/s rsec/s wsec/s avgrq-sz avgqu-sz &...
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Author: Jack Levin,
2011-03-28, 23:38
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Re: hdfs /DN errors - HBase - [mail # user]
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...Also, I can't even jstack the datanode, its CPU is low, and its not eating RAM: 16:21:29 10.103.7.3 root@mtag3:/usr/java/latest/bin $ ./jstack 31771 31771: Unable to open socket ...
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Author: Jack Levin,
2011-03-28, 23:28
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hdfs /DN errors - HBase - [mail # user]
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...Hello guys, we are getting those errors: 2011-03-28 15:08:33,485 INFO org.apache.hadoop.hdfs.server.datanode.DataNode.clienttrace: src: /10.101.6.5:50010, dest: /10.101.6.5:51365, byt...
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Author: Jack Levin,
2011-03-28, 23:19
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Re: major hdfs issues - HBase - [mail # user]
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...we are running at 128000 ulimit -n. I am pretty sure the culpreet is the thrift server, it opens up 20k threads under load, and crashes all other servers by taking away RAM. Do ...
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Author: Jack Levin,
2011-03-13, 20:33
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Re: major hdfs issues - HBase - [mail # user]
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...Awesome, thanks... This is similar to mysql max-conn setting. -Jack On Sat, Mar 12, 2011 at 11:29 AM, Stack wrote: ...
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Author: Jack Levin,
2011-03-12, 23:03
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