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RE: Best technique for doing lookup with Secondary Index - HBase - [mail # user]
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...Anil, In prePut hook u call HTable#put()? Why use the network calls from server side here then? can not handle it from client alone? You can have a &nb...
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Author: Anoop Sam John,
2012-10-25, 04:44
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[HBASE-7036] Exclude org.apache.hadoop.hbase.coprocessor.example.generated package from findbugs check - HBase - [issue]
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http://issues.apache.org/jira/browse/HBASE-7036
Author: Anoop Sam John,
2012-10-24, 00:48
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RE: A question of storage structure for memstore? - HBase - [mail # user]
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...To be precise there will be one memstore per family per region.. If table having 2 CFs and there are 10 regions for that table then totally 2*10=20 memstores.. -Anoop- __________...
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Author: Anoop Sam John,
2012-10-22, 13:05
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RE: HRegionInfo returns empty values. - HBase - [mail # user]
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...Actually how many regions in your table? Only one region? In that case it will be having startkey and endkey as empt y.. So your case what it prints looks to be correct. -Anoop- _____...
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Author: Anoop Sam John,
2012-10-19, 08:57
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RE: Unable to add co-processor to table through HBase api - HBase - [mail # user]
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...Anil Yes the same. You got the HTD from the master to your client code and just added the CP into that Object. In order to reflect the change in the H Base cluster ...
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Author: Anoop Sam John,
2012-10-19, 05:37
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RE: Unable to add co-processor to table through HBase api - HBase - [mail # user]
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...me, new Path("hdfs://hbasecluster/tmp/hbase_cdh4.jar"), Coprocessor.PRIORITY_USER,map); Anil, Don't you have to modify the table ...
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Author: Anoop Sam John,
2012-10-19, 04:43
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RE: Coprocessor end point vs MapReduce? - HBase - [mail # user]
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...A CP and Endpoints operates at a region level.. Any operation within one re gion we can perform using this.. I have seen in below use case that along with the delete there was a ...
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Author: Anoop Sam John,
2012-10-19, 03:33
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RE: Coprocessor end point vs MapReduce? - HBase - [mail # user]
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...Hi Jean >>Are all coprocessors running at the same time on all regions Yes it will try to run all in parallel.. It will submit one callable for ea ch of the ...
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Author: Anoop Sam John,
2012-10-18, 04:20
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RE: Where is code in hbase that physically delete a record? - HBase - [mail # user]
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...Hi Yun, We have preCompactScannerOpen() and preCompact() hooks.. As we said, for compaction, a scanner for reading all corresponding HFi...
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Author: Anoop Sam John,
2012-10-18, 03:32
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RE: Where is code in hbase that physically delete a record? - HBase - [mail # user]
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...You can see the code in ScanQueryMatcher Basically in major compact a scan will be happening scanning all the files. .. As per the delete markers, the deleted KVs wont come out of the scanne...
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Author: Anoop Sam John,
2012-10-17, 12:31
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