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[expand - 1 more] - Re: MR job for creating splits - HBase - [mail # user]
...Why do you need to know this?  Were you trying to do a percentage of rows per region?  Otherwise just have a member variable of your reducer class and increment it on each call to ...
   Author: Bryan Beaudreault, 2012-05-13, 16:35
Re: HBase bulk loaded region can't be splitted - HBase - [mail # user]
...I haven't done bulk loads using the importtsv tool, but I imagine it works similarly to the mapreduce bulk load tool we are provided.  If so, the following stands.  In order to do ...
   Author: Bryan Beaudreault, 2012-05-11, 02:56
[expand - 2 more] - Re: HBase Performance Improvements? - HBase - [mail # user]
...I don't think there is.  You need to have a table seeded with the right regions in order to run the bulk loader jobs.  My machines are sufficiently fast that it did not take that l...
   Author: Bryan Beaudreault, 2012-05-10, 16:04
[expand - 1 more] - Re: Looking for a single row - HTable.get(Get) or Scan(Get) - HBase - [mail # user]
...I was under the impression that a single-row Scan can use the bloom filter as well.  Can anyone verify/refute?  On Thu, May 10, 2012 at 5:31 AM, Igal Shilman  wrote:  ...
   Author: Bryan Beaudreault, 2012-05-10, 14:04
Re: HBase HDFS disk space usage - HBase - [mail # user]
...We created our own MetricContext for reading these metrics.  Basically your metric context gets called every X seconds based on your hadoop-metrics.properties, so you can add whatever e...
   Author: Bryan Beaudreault, 2012-05-07, 17:44
[expand - 1 more] - Re: HBase, CDH3U2, EC2 - HBase - [mail # user]
...Our initial implementation was based a lot on http://hstack.org/hstack-automated-deployment-using-puppet/.  However, since then we have made many customizations and moved the whole conf...
   Author: Bryan Beaudreault, 2012-04-26, 14:05
[expand - 2 more] - Re: Unbalanced region server - HBase - [mail # user]
...Unfortunately I don't have any experience with that version. You might try a n hdfs rebalance, but I'm not sure of the implications of that for hbase.  H opefully someone else can be of...
   Author: Bryan Beaudreault, 2012-04-24, 04:14
[expand - 1 more] - Re: regions stuck in transition - HBase - [mail # user]
...Yes, I can get data from the region through the shell.  The problem is the balancer cannot run when a region is in transition, so it is never running.  Our region servers are becom...
   Author: Bryan Beaudreault, 2012-04-18, 14:38
[expand - 1 more] - Re: Cascading failure leads to loss of all region servers - HBase - [mail # user]
...Hi Stack,  Thanks for the reply.  Unfortunately, our first instinct was to restart the region servers and when they came up it appears the compaction was able to succeed (perhaps b...
   Author: Bryan Beaudreault, 2012-04-12, 01:17
[expand - 1 more] - Re: NotServingRegionException during memstore flush - HBase - [mail # user]
...By tailing the HMaster logs while our attempted flush was being run, I noticed that the region it fails to get is actually referenced as being deleted shortly after a split is received: &nbs...
   Author: Bryan Beaudreault, 2012-04-07, 07:06
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