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Re: REST servers locked up on single RS malfunction. - HBase - [mail # user]
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...Shouldn't the RS just shutdown then? Because it stays half alive and none of the puts succeed. Also the oome happen right after flush/compaction/split... so clearly the RS was bu...
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Author: Jack Levin,
2011-04-21, 07:47
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Re: issue with thrift server pile up. - HBase - [mail # user]
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...On Thu, Apr 21, 2011 at 12:21 AM, Stack wrote: Minor compaction for one (single) region on a regionserver. 16G Ram, 8 Core box, 6 disks, CPU user/system/io is slow at 5% ...
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Author: Jack Levin,
2011-04-21, 07:45
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REST servers locked up on single RS malfunction. - HBase - [mail # user]
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...Hello, with 0.89 HBASE, we see the following, all REST servers get locked on trying to connect to one of our RS servers, the error in the .out file on that Region Server looks like this: &nb...
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Author: Jack Levin,
2011-04-21, 05:11
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get vs read - HBase - [mail # user]
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...How does "get ave. time" differs from "read average time"? What is the definition of thereof? -Jack...
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Author: Jack Levin,
2011-04-21, 00:15
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issue with thrift server pile up. - HBase - [mail # user]
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...Hello -- we have an issue that looks like this. We have php app front end and thrift servers that live on seperate boxes away from HBASE cluster. Everytime we do compaction on o...
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Author: Jack Levin,
2011-04-20, 22:45
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hlog async replay tool. - HBase - [mail # user]
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...In some cases its important to bring hbase up after hdfs crash without recovering hlogs first, is it possible to have a tool that just takes hlogs and replays them after HBASE already been s...
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Author: Jack Levin,
2011-04-19, 05:49
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cpu profiling - HBase - [mail # user]
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...Hi all, what is the best way to profile CPU on Region Server JVM? Does anyone have any tips, we can looking to see which threads, call, gets, scanner potentially cause high CPU on singular r...
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Author: Jack Levin,
2011-04-11, 04:08
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Re: rpc call logging - HBase - [mail # user]
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...Ok, but I can't exactly use it for debugging unless I have some sort of a viewer - also, this is for writes, but mostly our issues are reads. -Jack On Sun, Apr 10, 2011 at ...
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Author: Jack Levin,
2011-04-11, 00:19
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Re: rpc call logging - HBase - [mail # user]
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...I would love it to be exactly like mysqld.log where you save all your queries there. -Jack On Sun, Apr 10, 2011 at 12:31 PM, Stack wrote: re. n in er in spot 0, t...
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Author: Jack Levin,
2011-04-10, 20:46
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Re: rpc call logging - HBase - [mail # user]
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...Well, counts would help a lot, but actual queries displayed even more so... For example I just found a bug in our code that runs in infinite loop across only specific pages that cause region...
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Author: Jack Levin,
2011-04-10, 02:09
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