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Re: Slow region server recoveries - HBase - [mail # user]
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...Hi Ted, I had a long offline discussion with nicholas on this. Looks like the last block which was still being written too, took an enormous time to recover. Here's what happened. a) M...
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Author: Varun Sharma,
2013-04-19, 20:09
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Re: Slow region server recoveries - HBase - [mail # user]
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...here is the snippet 2013-04-19 00:27:38,337 INFO org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl: Recover RBW replica BP-696828882-10.168.7.226-1364886167971:blk_40107897...
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Author: Varun Sharma,
2013-04-19, 17:53
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Re: Slow region server recoveries - HBase - [mail # user]
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...Is there a place to upload these logs ? On Fri, Apr 19, 2013 at 10:25 AM, Varun Sharma wrote: ...
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Author: Varun Sharma,
2013-04-19, 17:28
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Re: Slow region server recoveries - HBase - [mail # user]
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...Hi Nicholas, Here is the failure scenario, I have dug up the logs. A machine fails and stops accepting/transmitting traffic. The HMaster starts the distributed split for 13 tasks...
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Author: Varun Sharma,
2013-04-19, 10:46
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Re: Slow region server recoveries - HBase - [mail # user]
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...I am wondering if DFSClient caches the data node for a long period of time ? Varun On Thu, Apr 18, 2013 at 6:01 PM, Varun Sharma wrote: ...
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Author: Varun Sharma,
2013-04-19, 01:37
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Slow region server recoveries - HBase - [mail # user]
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...Hi, We are facing problems with really slow HBase region server recoveries ~ 20 minuted. Version is hbase 0.94.3 compiled with hadoop.profile=2.0. Hadoop version is CDH 4.2 with ...
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Author: Varun Sharma,
2013-04-19, 01:01
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[HBASE-8370] Report data block cache hit rates apart from aggregate cache hit rates - HBase - [issue]
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...Attaching from mail to [EMAIL PROTECTED]I am wondering whether the HBase cachingHitRatio metrics that the region server UI shows, can get me a break down by data blocks. I always see this nu...
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http://issues.apache.org/jira/browse/HBASE-8370
Author: Varun Sharma,
2013-04-18, 03:19
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A look at HBASE 8284 - HBase - [mail # dev]
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...Hi, Could someone take a look at 8284 if they have time... Thanks...
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Author: Varun Sharma,
2013-04-17, 22:36
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True Block Cache Hit ratio's - HBase - [mail # dev]
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...Hi, I am wondering whether the HBase cachingHitRatio metrics that the region server UI shows, can get me a break down by data blocks. I always see this number to be very high and that ...
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Author: Varun Sharma,
2013-04-16, 16:30
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[HBASE-8285] HBaseClient never recovers for single HTable.get() calls with no retries when regions move - HBase - [issue]
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...Steps to reproduce this bug:1) Gracefull restart a region server causing regions to get redistributed.2) Client call to this region keeps failing since Meta Cache is never purged on the clie...
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http://issues.apache.org/jira/browse/HBASE-8285
Author: Varun Sharma,
2013-04-16, 11:35
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