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[expand - 2 more] - Re: Mutiple dfs.data.dir vs RAID0 - HDFS - [mail # user]
...On Mon, Feb 11, 2013 at 10:54 AM, Jean-Marc Spaggiari  wrote:   "Hadoop Operations" by E. Sammer: http://shop.oreilly.com/product/0636920025085.do  ...
   Author: Michael Katzenellenbogen, 2013-02-11, 16:02
Re: Confused about splitting - HDFS - [mail # user]
...Have your record reader seek (and discard data) until it finds the beginning of your frame, and always keep reading until the end/length of the current frame/record. This will assure you tha...
   Author: Michael Katzenellenbogen, 2013-02-10, 15:58
Re: Initial Permission Settings - MapReduce - [mail # user]
...dfs.umask has been deprecated in favor of dfs.umaskmode  Typically a umask is represented as an octal, whereas dfs.umask was represented as a decimal. dfs.umaskmode accepts octal notati...
   Author: Michael Katzenellenbogen, 2013-01-29, 23:16
[expand - 2 more] - Re: Hadoop throughput question - Hadoop - [mail # user]
...I'd also check the SequenceFile compression type (io.seqfile.compression.type). By default this is set to RECORD, and if needed, should ideally be set to BLOCK (or NONE if not desired). &nbs...
   Author: Michael Katzenellenbogen, 2013-01-04, 01:57
Re: Cluster wide atomic operations - MapReduce - [mail # user]
...Twitter's Snowflake may provide you with some inspiration:  https://github.com/twitter/snowflake  -Michael  On Oct 28, 2012, at 9:16 PM, David Parks  wrote:  I need ...
   Author: Michael Katzenellenbogen, 2012-10-29, 01:33
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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