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[HDFS-4255] Useless stacktrace shown in DN when there's an error writing a block - HDFS - [issue]
...The DN sometimes carries these, especially when its asked to shutdown and there's ongoing write activity. The stacktrace is absolutely useless and may be improved, and the message it comes a...
http://issues.apache.org/jira/browse/HDFS-4255    Author: Harsh J, 2013-04-13, 04:48
Re: Hadoop update mysql table - HDFS - [mail # user]
...You probably are doing an operation already supported and provided by Apache Sqoop (http://sqoop.apache.org). Do try it out to see if its updates feature solves your need (aside of its other...
   Author: Harsh J, 2013-04-12, 06:42
Re: mr default=local? - HDFS - [mail # user]
...Hey John,  Sorta unclear on what is prompting this question (to answer it more specifically) but my response below:  On Tue, Apr 9, 2013 at 9:05 AM, John Meza  wrote:  Th...
   Author: Harsh J, 2013-04-09, 03:46
Re: Best format to use - HDFS - [mail # user]
...Hey Mark,  Gzip codec creates extension .gzip, not .deflate (which is DeflateCodec). You may want to re-check your settings.  Impala questions are best resolved at its current user...
   Author: Harsh J, 2013-04-09, 03:12
[expand - 1 more] - Re: Probably a bug in FsEditLog - HDFS - [mail # dev]
...Anty,  Worth checking if you can spot the bug in branch-1 as well: http://svn.apache.org/repos/asf/hadoop/common/branches/branch-1/src/hdfs/org/apache/hadoop/hdfs/server/namenode/FSEdit...
   Author: Harsh J, 2013-04-08, 09:24
Re: A question of QJM with HDFS federation - HDFS - [mail # user]
...Hi Azurry,  QJM:  Yes, multiple nameservices can share a single QJM set. The QJM configuration allows for a journal ID prefix path which you should configure to be the nameservice ...
   Author: Harsh J, 2013-04-08, 06:50
[expand - 1 more] - Re: backup node question - HDFS - [mail # user]
...StandbyNameNode is the term we use to refer to a NameNode in HA that is currently not the active one (i.e. its state is 'Standby'). Its not a special type of daemon (i.e. it just runs the Na...
   Author: Harsh J, 2013-04-07, 14:10
Re: On disk layout of HDFS... - HDFS - [mail # dev]
...If you're looking for the online solution, Aaron's just posted a working implementation of it at https://issues.apache.org/jira/browse/HDFS-1804.  For the offline or asynchronous disk b...
   Author: Harsh J, 2013-04-04, 09:45
Re: <ask> How to Overwrite file on HDFS - HDFS - [mail # user]
...Yes, in Apache Hadoop 2.x versions, you may do "hadoop fs -put -f  " to perform direct overwrites. The -f option is not available under your Apache Hadoop 1.x version presently, and you...
   Author: Harsh J, 2013-04-04, 09:32
[expand - 2 more] - Re: ReplicationTargetChooser has incorrect block placement comments - HDFS - [mail # dev]
...Hi Mei,  Thanks. Please also keep [EMAIL PROTECTED] on the to: list when replying, so your questions get exposure from other HDFS devs as well :)  Regarding your question, the answ...
   Author: Harsh J, 2013-04-04, 08:58
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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