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Re: Hbase Performance Issue - HBase - [mail # user]
...Akhtar: There is no manual step for bulk load. You essentially have your script that runs the map reduce job that creates the HFiles. On success of this script/command, you run the completeb...
   Author: Suraj Varma, 2014-01-07, 23:53
Re: Heads up, HTablePool will be deprecated in 0.94, 0.95/0.96, and removed in 0.98 - HBase - [mail # dev]
...Might this be a good time to _not_ throw IOException and perhaps throw something along the lines of retryable / non-retryable etc exceptions - similar to the hierarchy in asynchbase?  S...
   Author: Suraj Varma, 2013-08-05, 20:21
Re: GC recommendations for large Region Server heaps - HBase - [mail # user]
...Thanks Anil - your setting matches our current JVM setting quite closely (though ours is for a 8GB heap).    On Tue, Jul 9, 2013 at 1:53 PM, anil gupta  wrote:  ...
   Author: Suraj Varma, 2013-07-10, 00:07
Re: difference between major and minor compactions? - HBase - [mail # user]
...There is no resource exclusivity with major compactions. It is just more resource _intensive_ because a major compaction will rewrite all the store files to end up with a single store file p...
   Author: Suraj Varma, 2013-06-22, 18:51
Re: Any mechanism in Hadoop to run in background - HBase - [mail # user]
...Yes, you can change your task tracker startup script to use nice and ionice and restart the task tracker process. The mappers and reducers spun off this task tracker will inherit the nicenes...
   Author: Suraj Varma, 2013-06-22, 18:09
Re: Logging for MR Job - HBase - [mail # user]
...Did you try passing in the log level via  generic options? E.g. I can switch the log level of a running job via: hadoop jar hadoop-mapreduce-examples.jar pi *-D mapred.map.child.log.lev...
   Author: Suraj Varma, 2013-06-22, 07:09
Re: HBase Availability - Mean Time to Failure & Recovery Time - HBase - [mail # user]
...Read this: http://hortonworks.com/blog/introduction-to-hbase-mean-time-to-recover-mttr/  There are some jira ticket links in there that will give you more reading material on MTTR. &nbs...
   Author: Suraj Varma, 2013-06-11, 21:51
[HBASE-6364] Powering down the server host holding the .META. table causes HBase Client to take excessively long to recover and connect to reassigned .META. table - HBase - [issue]
...When a server host with a Region Server holding the .META. table is powered down on a live cluster, while the HBase cluster itself detects and reassigns the .META. table, connected HBase Cli...
http://issues.apache.org/jira/browse/HBASE-6364    Author: Suraj Varma, 2013-05-30, 10:33
Re: Examples of Multi Get and Multi Put using Stargate (JSON) - HBase - [mail # user]
...*Moving your post to user mailing list.*  Here are more examples: http://wiki.apache.org/hadoop/Hbase/HbaseRest  For your curl calls, escape your ampersands, else it is interpreted...
   Author: Suraj Varma, 2013-05-14, 17:15
Re: discp versus export - HBase - [mail # user]
...Read this: http://blog.sematext.com/2011/03/11/hbase-backup-options/ for the high level difference between export and distcp. The key factor here is the data in memstore that has not been fl...
   Author: Suraj Varma, 2013-04-30, 16:14
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