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Re: [VOTE] Release Apache Hadoop 2.3.0 - MapReduce - [mail # dev]
...Looks good.+1, also non-binding.I downloaded the source tarball, checked md5, built, ran some unittests, ran an HDFS cluster.cheers,ColinOn Tue, Feb 11, 2014 at 6:53 PM, Andrew Wang  wr...
   Author: Colin McCabe, 2014-02-12, 04:09
Re: Next releases - MapReduce - [mail # dev]
...If 2.4 is released in January, I think it's very unlikely to include symlinks.  There is still a lot of work to be done before they're usable.  You can look at the progress on HADO...
   Author: Colin McCabe, 2013-12-06, 20:27
Re: 2.1.2 (Was: Re: [VOTE] Release Apache Hadoop 2.1.1-beta) - MapReduce - [mail # dev]
...I don't think HADOOP-9972 is a must-do for the next Apache release, whatever version number it ends up having.  It's just adding a new API, not changing any existing ones, and it can be...
   Author: Colin McCabe, 2013-10-03, 02:10
Re: [VOTE] Release Apache Hadoop 2.1.0-beta - MapReduce - [mail # dev]
...On Wed, Aug 21, 2013 at 3:49 PM, Stack  wrote:  I filed https://issues.apache.org/jira/browse/HADOOP-9895 to address this issue.  best, Colin  ...
   Author: Colin McCabe, 2013-08-22, 17:08
Re: EBADF: Bad file descriptor - MapReduce - [mail # user]
...To clarify a little bit, the readahead pool can sometimes spit out this message if you close a file while a readahead request is in flight.  It's not an error and just reflects the fact...
   Author: Colin McCabe, 2013-07-10, 18:52
Re: core-site.xml file is being ignored by new Configuration() - MapReduce - [mail # user]
...The configuration XML files are loaded from your CLASSPATH.  If you want to know more about what configuration you're picking up, you can use the "./bin/hdfs getconf" command.  che...
   Author: Colin McCabe, 2013-01-28, 22:47
Re: building a department GPU cluster - MapReduce - [mail # user]
...On Thu, Jan 17, 2013 at 12:24 AM, Roberto Nunnari wrote:   My understanding (although I could be wrong) is that only one task is going to be able to use the GPU at a time, so you're goi...
   Author: Colin McCabe, 2013-01-28, 22:34
Re: same edits file is loaded more than once - MapReduce - [mail # user]
...Hi,  If you want to learn more about HA in HDFS, here are some slides from a talk that Aaron T. Meyers and Suresh Srinivas gave: http://www.slideshare.net/hortonworks/nn-ha-hadoop-world...
   Author: Colin McCabe, 2012-11-07, 19:14
Re: problem with hadoop-snappy - MapReduce - [mail # user]
...I think what you're hitting is probably https://issues.apache.org/jira/browse/HADOOP-8756.  It was fixed in branch-2 and branch-3, but not in the old releases.  If you want to work...
   Author: Colin McCabe, 2012-11-07, 18:56
Re: Using a hard drive instead of - MapReduce - [mail # user]
...Hi Mark,  HDFS contains a write-ahead log which will protect you from power failure.  It's called the edit log.  If you want warm failover, you can use HDFS HA, which is avail...
   Author: Colin McCabe, 2012-10-17, 23:21
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