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Using Lookup file in mapreduce - Hadoop - [mail # user]
...Hi teamI have a huge lookup file around 5 GB and I need to use it to map users to categories in my mapreduce job. Can you suggest the best way to achieve it ?Sent from my iPhone ...
   Author: Siddharth Tiwari, 2014-05-16, 17:45
R on hadoop - Hadoop - [mail # user]
...Hi team any docummentation around installing r on hadoopSent from my iPhone ...
   Author: Siddharth Tiwari, 2014-03-24, 20:19
Row exception inhive - Hadoop - [mail # user]
...Hi team,What does the following error signify ?java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row (tag=1) {"key":{"joinkey0...
   Author: Siddharth Tiwari, 2014-03-03, 04:43
[expand - 2 more] - Huge disk IO on only one disk - Hadoop - [mail # user]
...Hi Team,I have 10 disks over which I am running my HDFS. Out of this on disk5 I have my hadoop.tmp.dir configured. I see that on this disk I have huge IO when I run my jobs compared to other...
   Author: Siddharth Tiwari, 2014-03-03, 00:28
FW: Query hangs at 99.97 % for one reducer in Hive - Hadoop - [mail # user]
...Forwarding message to hadoop list as well for any help. Appreciate any help*------------------------*Cheers !!!Siddharth TiwariHave a refreshing day !!!"Every duty is holy, and devotion to d...
   Author: Siddharth Tiwari, 2014-03-02, 23:13
Seeing strange error in Hive - Hadoop - [mail # user]
...Hi Team,I am seeing following error in hive in reduce phase,can you guide me on its cause and possible solution ?java.lang.RuntimeException: Hive Runtime Error while closing operators: Unabl...
   Author: Siddharth Tiwari, 2014-03-01, 09:03
Re: umount bad disk - Hadoop - [mail # user]
...Try doing unmount -lSent from my iPhone ...
   Author: Siddharth Tiwari, 2014-02-13, 23:38
Re: HA Jobtracker failure - Hadoop - [mail # user]
...How have you implemented the failover ? Also can you attach JTHA logs ? If you hav implemented it using. Zkfc, it would be interesting to look in zookeeper logs as well. Sent from my iPhone&...
   Author: Siddharth Tiwari, 2014-01-27, 22:04
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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