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RE: Wondering what hbck should do in this situation - HBase - [mail # dev]
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...J-D Just going thro the explanation I feel that the region that had references is a parent region and it should have an entry in META saying it is SPLIT and OFFLINE? May be while...
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Author: Ramkrishna.S.Vasudevan,
2012-07-19, 04:51
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RE: [poll] Does anyone run or test against hadoop 0.21, 0.22, 0.23 under HBase 0.92.0+/0.94.0? - HBase - [mail # dev]
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...We work on hadoop 2.0. Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-07-19, 04:01
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RE: ANN: The first hbase 0.94.1 release candidate is available for download - HBase - [mail # dev]
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...Lars I think you mean 'whether we should release this as 0.94.1'? Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-07-18, 05:09
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RE: Load balancer repeatedly close and open region in the same regionserver. - HBase - [mail # user]
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...is different. Need to analyse the previous logs also. Pls file a JIRA, if possible attach the logs to that. Thanks Howard. Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-07-17, 14:30
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RE: checkAndPut, checkAndDelete - HBase - [mail # dev]
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...Hi Dishant In my first point the check on the client side what I meant is {code} if (!Bytes.equals(row, r.getRow())) { throw new DoNotRetryIOEx...
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Author: Ramkrishna.S.Vasudevan,
2012-07-02, 14:23
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checkAndPut, checkAndDelete - HBase - [mail # dev]
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...Hi Devs Currently the checkAndPut, checkAndDelete these api currently accept the row that needs to be checked and the Delete/Put also along with it. Again interna...
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Author: Ramkrishna.S.Vasudevan,
2012-07-02, 08:44
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RE: Can a server function make a rpc call to the corresponding client - HBase - [mail # dev]
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...Pls go through http://hbase.apache.org/book/regionserver.arch.html#coprocessors. Here we have master environment, regionserver environment which will give you access to locate a region...
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Author: Ramkrishna.S.Vasudevan,
2012-06-28, 15:00
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RE: Scan vs Put vs Get - HBase - [mail # user]
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...In 0.94 The UI of the RS has a metrics table. In that you can see blockCacheHitCount, blockCacheMissCount etc. May be there is a variation when you do scan() an...
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Author: Ramkrishna.S.Vasudevan,
2012-06-28, 11:59
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RE: secondary indexing of tables - HBase - [mail # user]
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...I don't have a sample code. But it can be done using Coprocessors because it provides lot of hooks. HBASE-2038 will give you pointers towards that and before that please read abo...
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Author: Ramkrishna.S.Vasudevan,
2012-06-28, 11:51
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RE: Stargate: ScannerModel - HBase - [mail # dev]
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...Try using setCaching and setBatching. These help you to avoid the number of calls that happens from the client to the server for every result/row fetched. Regards Ram ...
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Author: Ramkrishna.S.Vasudevan,
2012-06-28, 08:45
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