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Re: Wrapping around BitSet with the Writable interface - HDFS - [mail # user]
...You can perhaps consider using the experimental JavaSerialization [1] enhancement to skip transforming to Writables/other-serialization-formats. It may be slower but looks like you are looki...
   Author: Harsh J, 2013-05-12, 20:09
Re: problem building lzo - HDFS - [mail # user]
...What repo of the hadoop-lzo are you using? If you're using a typical Linux OS such as those similar to RedHat/Debian/etc., it is easier to run the "hadoop-lzo-packager" project mentioned at ...
   Author: Harsh J, 2013-05-09, 03:45
Re: How to restore HDFS data - HDFS - [mail # user]
...If you've already run -delete (-move is a better choice if you know DN fault is temporary), then the missing blocks are already deleted from the namespace permanently. No way to recover the ...
   Author: Harsh J, 2013-05-02, 13:19
Re: datanode's write_block_op_avg_time value - HDFS - [mail # user]
...What are you finding alarming w.r.t. your cluster?  The metric is simple: When did the write start, and when did it finally end, for a single block? The difference is the writeBlockOp t...
   Author: Harsh J, 2013-05-02, 11:21
[expand - 2 more] - Re: High IO Usage in Datanodes due to Replication - HDFS - [mail # user]
...If your partitions are only storing about 1 MB in each, I don't know if its a good key design or a good application for Hadoop. But if you mean that there are many files under a single parti...
   Author: Harsh J, 2013-05-01, 10:15
Re: Warnings? - HDFS - [mail # user]
...The env-var is auto-created by the "hadoop" script for you when you invoke "hadoop jar". You do not necessarily have to manually set it, nor do you have to compile the native libs if what yo...
   Author: Harsh J, 2013-04-29, 19:30
Re: VersionInfoAnnotation Unknown for Hadoop/HBase - HDFS - [mail # user]
...Well… Bingo! :)  We don't write our projects for 1.5 JVMs, and especially not the GCJ (1.5 didn't have annotations either IIRC? We depend on that here). Try with a Sun/Oracle/OpenJDK 1....
   Author: Harsh J, 2013-04-29, 15:05
Re: Encounter 'error: possibly undefined macro: AC_PROG_LIBTOOL', when build Hadoop project in SUSE 11(x86_64) - HDFS - [mail # dev]
...What version of autoconf are you using?  On Tue, Apr 23, 2013 at 12:18 PM, sam liu  wrote:    Harsh J...
   Author: Harsh J, 2013-04-23, 07:57
Re: Map‘s number with NLineInputFormat - HDFS - [mail # user]
...Do you also ensure setting your desired input format class via the setInputFormat*(…) API?  On Sat, Apr 20, 2013 at 6:48 AM, yypvsxf19870706  wrote:    Harsh J...
   Author: Harsh J, 2013-04-20, 17:04
Re: Uploading file to HDFS - HDFS - [mail # user]
...Can you not simply do a fs -put from the location where the 2 TB file currently resides? HDFS should be able to consume it just fine, as the client chunks them into fixed size blocks.  ...
   Author: Harsh J, 2013-04-19, 06:40
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