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[expand - 1 more] - Re: our experiences with various filesystems and tuning options - HDFS - [mail # user]
...On May 10, 2011, at 6:14 AM, Marcos Ortiz wrote: inmature yet. For that reason, I changed my PostgreSQL hosts to  FreeBSD-8.0 to use   HDFS capacity numbers go really wonky on pool...
   Author: Allen Wittenauer, 2011-05-10, 20:59
[expand - 1 more] - Re: socket timeouts, dropped packages - HDFS - [mail # user]
...On Apr 13, 2011, at 1:06 PM, Ferdy Galema wrote: here at all. I was thinking that even though cloudera releases are  somewhat different, issues that are probably generic could still &nb...
   Author: Allen Wittenauer, 2011-04-14, 17:31
Re: Datanode won't start with bad disk - HDFS - [mail # user]
...On Mar 24, 2011, at 10:47 AM, Adam Phelps wrote:  distribution.   Given that this isn't a standard Apache release, you'll likely  be better served by asking Cloudera....
   Author: Allen Wittenauer, 2011-03-25, 16:43
[expand - 1 more] - Re: Merging Namenode Federation feature (HDFS-1052) to trunk - HDFS - [mail # dev]
...On Mar 21, 2011, at 4:08 PM, Sanjay Radia wrote: things   Thanks for taking the time at HUG.  (I've since figured out that  I lost your messages as part of my email list trans...
   Author: Allen Wittenauer, 2011-03-22, 20:11
Re: keeping an active hdfs cluster balanced - HDFS - [mail # user]
...On Mar 17, 2011, at 12:13 PM, Stuart Smith wrote:  here. My basic problem is: does put a bit of pressure on the system (when balanced, every DN is  more than half full).   Usu...
   Author: Allen Wittenauer, 2011-03-17, 21:20
Re: Changing a Namenode server - HDFS - [mail # user]
...On Mar 16, 2011, at 7:17 AM, Lior Schachter wrote:  the system     It is pretty much the same procedure as if you had perm. lost  the NN hardware, more or less:  1) ...
   Author: Allen Wittenauer, 2011-03-16, 14:30
Re: how does hdfs determine what node to use? - HDFS - [mail # user]
...On Mar 10, 2011, at 10:34 AM, Jeffrey Buell wrote:  per rack do you have? having greater replication in the shuffle or reduce phases?  That is, is  hadoop smart enough that wh...
   Author: Allen Wittenauer, 2011-03-14, 16:28
Re: Will blocks of an unclosed file get lost when HDFS client (or the HDFS cluster) crashes? - HDFS - [mail # user]
...No.   If a close hasn't been committed to the file, the associated  blocks/files disappear in both client crash and namenode crash  scenarios.     On Mar 13, 2011, a...
   Author: Allen Wittenauer, 2011-03-14, 16:21
[expand - 2 more] - Re: HDFS drive, partition best practice - HDFS - [mail # user]
...On Feb 8, 2011, at 12:22 PM, Patrick Angeles wrote:  s   I keep ignoring their requests to come interview, so that might have somet hing to do with it. Hmm....
   Author: Allen Wittenauer, 2011-02-08, 20:43
Re: Altering logical rack configuration - HDFS - [mail # user]
...On Feb 4, 2011, at 5:00 PM, Jonathan Disher wrote:  no longer here) did not specify logical racks in the HDFS configuration, in stead leaving everything in "default-rack".  Now I h...
   Author: Allen Wittenauer, 2011-02-08, 18:47
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB