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Re: Recovering corrupt HLog files - HBase - [mail # user]
...Thanks all for the additional input.  I do not think the HLogs are corrupted any longer, at least I think it was because we had also lost a good portion of data nodes.  We have sin...
   Author: Bryan Beaudreault, 2012-07-01, 05:07
Re: auto-added RegionServers - HBase - [mail # user]
...We use puppet and ldap to assign cluster names to servers as we spin them in  ec2. Our configs are pushed by fabric, which is organized by these cluster n ames. This makes it harder to ...
   Author: Bryan Beaudreault, 2012-05-24, 05:07
Heavy Writes Block Reads to RegionServer - HBase - [mail # user]
...We are running a job that does heavy writes into a new table.  The table is not pre-split so it has 1 region.  I know this is not recommended; we were doing it partially to test th...
   Author: Bryan Beaudreault, 2012-05-15, 21:38
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
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
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
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
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
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