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GC and High CPU - HBase - [mail # user]
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...Greetings all -- We had some issues with huge GC counts that drive CPU to 100% and rendering RS basically dead, here is some data: We are normal here, about 1 ParNew per second. ...
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Author: Jack Levin,
2011-05-15, 02:12
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Re: one of our datanodes stops working after few hours - HBase - [mail # user]
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...I will try, thanks. I have not ran NFS since 1998 :). -Jack On Mon, May 2, 2011 at 10:10 PM, Todd Lipcon wrote: ? e: ome t say...
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Author: Jack Levin,
2011-05-03, 08:03
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Re: one of our datanodes stops working after few hours - HBase - [mail # user]
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...As requested: http://pastebin.com/aySaTADp Note, blocked threads. -Jack On Mon, May 2, 2011 at 2:39 PM, Jean-Daniel Cryans wr ote: ay urs, s...
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Author: Jack Levin,
2011-05-03, 02:29
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Re: one of our datanodes stops working after few hours - HBase - [mail # user]
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...my yourkit version expired :)... but here is the jstack when it happens: http://pastebin.com/5v6mHg3t On Mon, May 2, 2011 at 1:00 PM, Todd Lipcon wrote: s,...
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Author: Jack Levin,
2011-05-02, 20:56
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Re: one of our datanodes stops working after few hours - HBase - [mail # user]
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...Tried removing yourkit and run on javasun, same thing. We have some threads blocked, does anyone know what they block on? -Jack On Mon, May 2, 2011 at 7:53 AM, Todd Lipcon ...
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Author: Jack Levin,
2011-05-02, 19:56
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Re: one of our datanodes stops working after few hours - HBase - [mail # user]
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...Version: 0.20.2+320 hdfs .89 HBASE ulimit is 32k xcievers is 5k Note from the jstack, I am not exceeding xcievers. -Jack On Sun, May 1, 2011 at 6:19 PM, Michael Seg...
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Author: Jack Levin,
2011-05-02, 02:34
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one of our datanodes stops working after few hours - HBase - [mail # user]
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...I took a jstack (http://pastebin.com/5v6mHg3t). After few hours, its literally staggers to a halt and gets very very slow... Any ideas whats its blocking on? (main issue is that fsrea...
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Author: Jack Levin,
2011-05-02, 00:47
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Re: REST servers locked up on single RS malfunction. - HBase - [mail # user]
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...thats a separate cluster, its barely getting any traffic so I don't think queue would be an issue. We do however have very large files stored (file per row). So question is, if ...
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Author: Jack Levin,
2011-04-25, 20:04
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Re: REST servers locked up on single RS malfunction. - HBase - [mail # user]
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...Stack: Exception in thread "pool-1-thread-9" java.lang.OutOfMemoryError: Java heap space at org.apache.hadoop.hbase.ipc.HBaseRPC$Invocation.readFields(HBaseRPC.jav a:120) at org.apac...
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Author: Jack Levin,
2011-04-25, 17:32
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Re: get vs read - HBase - [mail # user]
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...Yes, sorry fsReadLatency_avg_time is the one. -Jack On Thu, Apr 21, 2011 at 11:06 AM, Jean-Daniel Cryans wrote:...
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Author: Jack Levin,
2011-04-21, 19:54
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