How to debug

2012-08-25 Thread Manoj Babu
Hi All, how to debug mapreduce programs in pseudo mode? Thanks in Advance.

Re: doubt about reduce tasks and block writes

2012-08-25 Thread Marc Sturlese
Thanks, Raj you got exactly my point. I wanted to confirm this assumption as I was guessing if a shared HDFS cluster with MR and Hbase like this would make sense: http://old.nabble.com/HBase-User-f34655.html -- View this message in context:

Re: doubt about reduce tasks and block writes

2012-08-25 Thread Harsh J
Raj's almost right. In times of high load or space fillup on a local DN, the NameNode may decide to instead pick a non-local DN for replica-writing. In this way, the Node A may get a copy 0 of a replica from a task. This is per the default block placement policy. P.s. Note that HDFS hardly makes

RE: Reading multiple lines from a microsoft doc in hadoop

2012-08-25 Thread Siddharth Tiwari
CAn anybody enlighten me on what could be wrongg ? ** Cheers !!! Siddharth Tiwari Have a refreshing day !!! Every duty is holy, and devotion to duty is the highest form of worship of God.” Maybe other people will try to limit me but I don't limit myself From:

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2012-08-25 Thread dwq ding

Re: Reading multiple lines from a microsoft doc in hadoop

2012-08-25 Thread Harsh J
Hi Siddharth, First of all, please understand the medium - Mailing lists aren't immediate or interactive help mediums, please be patient for the ones who help you out of their own time. Secondly, take a read of http://www.catb.org/~esr/faqs/smart-questions.html for understanding why certain