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Re: Handling regionserver crashes in production cluster - HBase - [mail # user]
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...Its a simple kill... Scan is used using startrow and stoprow Scan scan = new Scan(Bytes.toBytes("adidas"), Bytes.toBytes("adidas1")); Our cluster size is 15. The load average when I s...
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Author: kiran,
2013-06-13, 03:43
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Re: Handling regionserver crashes in production cluster - HBase - [mail # user]
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...Yes we killed the region server but datanode is still running on the node... Sample Test scenario: Assume, I have table with pre-splits a upto z (about 26 regions). I brought down regi...
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Author: kiran,
2013-06-12, 16:11
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Re: Handling regionserver crashes in production cluster - HBase - [mail # user]
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...It is not possible for us to migrate to new version immediately. @Anoop we purposefully brought down one regionserver, then we observed the website is taking too much time to respond. ...
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Author: kiran,
2013-06-12, 12:10
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Handling regionserver crashes in production cluster - HBase - [mail # user]
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...Dear All, We have production cluster that runs on hbase 0.94.1. The issue we are facing is whenever one regionserver goes down, the cluster becomes unresponsive until all the regions a...
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Author: kiran,
2013-06-05, 17:20
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Re: Miserable Performance of gets - HBase - [mail # user]
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...And the regions are well distributed acroos the 12 regionservers..... On Wed, Mar 6, 2013 at 12:30 PM, kiran wrote: Thank you Kiran Sarvabhotla ...
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Author: kiran,
2013-03-06, 07:01
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Re: Miserable Performance of gets - HBase - [mail # user]
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...Yes we profiled the gets after completing the scan only. We have 12 regionservers. Each table i am doing gets has 40 regions. On Wed, Mar 6, 2013 at 12:21 PM, Stack wrote: ...
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Author: kiran,
2013-03-06, 07:00
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Re: Miserable Performance of gets - HBase - [mail # user]
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...Describe output of the table on which I am doing batch gets {NAME => 'XXXXXXX', FAMILIES => [{NAME => 'XXXXX', DATA_BLOCK_ENCODING => 'NONE', BLOOMFILTER => 'ROW', true ...
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Author: kiran,
2013-03-06, 06:42
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Re: Miserable Performance of gets - HBase - [mail # user]
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...Yes I have mistaken for regionsize. The regionsize was set to 20GB instead of default 10GB. Our blocksize is default 64KB. Our hdfs block size is 128MB. Our memstore flush size is 512MB. &nb...
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Author: kiran,
2013-03-06, 06:38
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Re: Miserable Performance of gets - HBase - [mail # user]
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...But bloomfilter was set to ROW on the second table... On Wed, Mar 6, 2013 at 10:54 AM, kiran wrote: Thank you Kiran Sarvabhotla ...
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Author: kiran,
2013-03-06, 05:26
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Re: Miserable Performance of gets - HBase - [mail # user]
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...Lars, The hbase block size we set to 20GB.... Anoop, We have about 13 regionservers and in the worst case these gets may be distributed across all the regionservers... &nbs...
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Author: kiran,
2013-03-06, 05:24
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