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Re: What makes a map to fail? - HDFS - [mail # user]
...Every failed task typically carries a diagnostic message and a set of logs for you to investigate what caused it to fail. Try visiting the task's logs on the JT UI by clicking through indivi...
   Author: Harsh J, 2014-01-05, 21:21
Re: Cutting a line in between while creating blocks - HDFS - [mail # user]
...HDFS is agnostic about the contents of the data you store. Think about it: Line ending character is not the universal way for files to separate their records.  This question's been aske...
   Author: Harsh J, 2014-01-04, 11:03
Re: MapReduce MIME Input type? - HDFS - [mail # user]
...Hey Devin,  Are you perhaps looking for http://james.apache.org/mime4j/? You may have to adapt it for MR but I don't imagine that would be too difficult to do.  On Mon, Dec 30, 201...
   Author: Harsh J, 2013-12-31, 06:08
Re: issue about corrupt block test - HDFS - [mail # user]
...Block files are not stored in a flat directory (to avoid FS limits of max files under a dir). Instead of looking for them right under finalized, issue a "find" query with the pattern instead...
   Author: Harsh J, 2013-12-11, 07:16
[HDFS-4983] Numeric usernames do not work with WebHDFS FS - HDFS - [issue]
...Per the file hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/resources/UserParam.java, the DOMAIN pattern is set to: ^[A-Za-z_][A-Za-z0-9._-]*[$&...
http://issues.apache.org/jira/browse/HDFS-4983    Author: Harsh J, 2013-12-10, 14:43
Re: Help - HDFS - [mail # user]
...Wrong list, dial 911 (or whatever your country uses)?  On Mon, Dec 9, 2013 at 9:25 AM, busybody  wrote:    Harsh J...
   Author: Harsh J, 2013-12-09, 06:13
Re: Check compression codec of an HDFS file - HDFS - [mail # user]
...If you're looking for file header/contents based inspection, you could download the file and run the Linux utility 'file' on the file, and it should tell you the format.  I don't know a...
   Author: Harsh J, 2013-12-05, 10:22
Re: about hadoop-2.2.0 "mapred.child.java.opts" - HDFS - [mail # user]
...Yes but the old property is yet to be entirely removed (removal of configs is graceful).  These properties were introduced to provide more fine-tuned way to configure each type of task ...
   Author: Harsh J, 2013-12-04, 07:58
Re: passing configuration parameter to comparator - HDFS - [mail # user]
...The comparators are also initialised via the ReflectionUtils code, so they do try to pass configuration onto the instantiated object if the class implements the org.apache.hadoop.conf.Config...
   Author: Harsh J, 2013-12-02, 17:04
Re: Start and Stop Namenode - HDFS - [mail # user]
...Yes you should expect to see a NameNode separately available but apparently its dying out. Check the NN's log on that machine to see why.  On Thu, Nov 28, 2013 at 8:37 AM, Ascot Moss &n...
   Author: Harsh J, 2013-11-28, 05:25
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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