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Re: EC2 instance type recommendation ? - HBase - [mail # user]
...For me, it came down to the cc2.8xlarge vs the hi1.4xlarge. In the end I went with the hi1.4xlarge.   On Jul 16, 2013, at 11:18 AM, Amit Mor  wrote:  ...
   Author: Bryan Keller, 2013-07-16, 18:31
Re: Poor HBase map-reduce scan performance - HBase - [mail # user]
...I attached my patch to the JIRA issue, in case anyone is interested. It can pretty easily be used on its own without patching HBase. I am currently doing this.   On Jul 1, 2013, at 2:23...
   Author: Bryan Keller, 2013-07-01, 21:35
Re: Maximizing throughput - HBase - [mail # user]
...I'll follow up on this in case it is useful to anyone. It seems I was network I/O limited. The switch I was using was in managed mode which decreased throughput to 1gbit/sec within the switc...
   Author: Bryan Keller, 2013-01-15, 17:28
Re: HBaseClient.call() hang - HBase - [mail # user]
...Yes, that is what I would expect, but the client is stuck in the Object.wait() call and doesn't get notified until the RPC timeout passes.  On Dec 18, 2012, at 12:27 PM, "Mesika, Asaf" ...
   Author: Bryan Keller, 2012-12-18, 22:25
Re: dfs.replication - HBase - [mail # user]
...Thanks, it is in the classpath after all. I was looking at the "ps" output which was truncated, "hbase classpath" revealed the full classpath.  On Dec 12, 2012, at 11:47 AM, Jean-Daniel...
   Author: Bryan Keller, 2012-12-12, 20:28
[HBASE-3792] TableInputFormat leaks ZK connections - HBase - [issue]
...The TableInputFormat creates an HTable using a new Configuration object, and it never cleans it up. When running a Mapper, the TableInputFormat is instantiated and the ZK connection is creat...
http://issues.apache.org/jira/browse/HBASE-3792    Author: Bryan Keller, 2012-09-13, 23:08
Re: Poor data locality of MR job - HBase - [mail # user]
...I see what you mean about block locality, that is at the regionserver  level, transparent to the MR job. This doesn't happen only to the final  mappers, some of the early mappers a...
   Author: Bryan Keller, 2012-08-02, 21:56
Re: Region balancing question - HBase - [mail # user]
...I'm using 0.92 (Cloudera CDH4). Yes I definitely do not want to balance  all regions across all tables together, as some tables are much more  active than others and thus some regi...
   Author: Bryan Keller, 2012-08-02, 17:20
Re: Leap second bug - HBase - [mail # user]
...We were also caught by this - we're running CentOS 6. Likewise, once we  reset the date/time, HBase was happy again. I wonder why Java processes  seemed to be affected more than ot...
   Author: Bryan Keller, 2012-07-02, 17:47
WAL corruption - HBase - [mail # user]
...During an upgrade of my cluster to 0.90 to 0.92 over the weekend, the  WAL (files in the /hbase/.logs directory) was corrupted and it prevented  HBase from starting up. The exact e...
   Author: Bryan Keller, 2012-07-02, 17:37
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