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[HADOOP-9666] SnappyCompressor/SnappyDecompressor JNI code uses wrong Exception class name - Hadoop - [issue]
...SnappyCompressor.c and SnappyDecompressor.c use the macro THROW defined in org_apache_hadoop.h.  The macro locates the exception class using FindClass.According to JNI spec., FindClass ...
http://issues.apache.org/jira/browse/HADOOP-9666    Author: Stan Rosenberg, 2013-06-23, 20:44
sporadic failure - Hadoop - [mail # user]
...Hi,  Any ideas why a staging directory would suddenly become unavailable after the completion of the map phase but before the start of the reduce phase?  We noticed a sporadic fail...
   Author: Stan Rosenberg, 2013-01-04, 21:02
Re: task jvm bootstrapping via distributed cache - Hadoop - [mail # user]
...On Tue, Jul 31, 2012 at 7:26 PM, Michael Segel  wrote:  Correct.  I want to ship a jar to the task, but I need to know its absolute path before the task jvm is launched. As an...
   Author: Stan Rosenberg, 2012-08-01, 15:12
Fwd: task jvm bootstrapping via distributed cache - Hadoop - [mail # user]
...Forwarding to common-user to hopefully get more exposure...   From: Stan Rosenberg  Date: Tue, Jul 31, 2012 at 11:55 AM Subject: Re: task jvm bootstrapping via distributed cache To...
   Author: Stan Rosenberg, 2012-07-31, 20:50
hdfs inode count - Hadoop - [mail # user]
...Hi,  Current filesystem api does not expose inode count.   Why? FileSystem.listStatus(root) incurs too much overhead if all one needs is a count of the number of children.  IN...
   Author: Stan Rosenberg, 2012-07-20, 21:22
[expand - 1 more] - Re: CombineFileInputFormat - Hadoop - [mail # user]
...On Mon, Apr 9, 2012 at 5:29 PM, Deepak Nettem  wrote:  Very simply: lots of reasonably small files which I can't control, i.e., changing block size is not an option.  Note tha...
   Author: Stan Rosenberg, 2012-04-09, 21:35
Re: custom partitioner - Hadoop - [mail # user]
...Typically, numPartitons is used as a modulus in orde to derive a value that is between zero and strictly less than numPartitons.  That is, key.get() % numPartitions would yield such a v...
   Author: Stan Rosenberg, 2012-03-25, 16:51
[expand - 1 more] - Re: race condition in hadoop 0.20.2 (cdh3u1) - Hadoop - [mail # user]
...On Tue, Jan 17, 2012 at 6:38 PM, Brock Noland  wrote:  Could you please refer me to where this design decision/assumption is/was documented?  Imho, this assumption clashes wit...
   Author: Stan Rosenberg, 2012-01-17, 23:51
Re: MultipleOutputs - Create multiple files during output - Hadoop - [mail # user]
...Hi Tim,  You could create a custom HashPartitioner so that all key,value pairs denoting the actions of the same user end up in the same reducer; then you need only one output file per r...
   Author: Stan Rosenberg, 2011-09-02, 02:24
[expand - 4 more] - Re: WritableComparable - Hadoop - [mail # user]
...Thanks for all the help on this issue.  It turned out to be a very simple problem with my 'compareTo' implementation. The ordering was symmetric but _not_ transitive.  stan  O...
   Author: Stan Rosenberg, 2011-08-22, 15:53
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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