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Re: Hadoop and MainFrame integration - MapReduce - [mail # user]
...On 28 August 2012 09:24, Siddharth Tiwari  wrote:  Can you NFS-mount the mainframe filesystem from the Hadoop cluster? Otherwise, do you or your mainframe vendor have a custom Hado...
   Author: Steve Loughran, 2012-08-28, 17:57
[expand - 1 more] - Re: Hadoop 1.0.3 (nutch-1.5.1) throwing errors on AIX 6.1 - MapReduce - [mail # user]
...On 24 August 2012 06:49, James F Walton  wrote:    I tried running Hadoop on JRockit a few years back; after being the only person to file JIRAs related to that JVM I reverted...
   Author: Steve Loughran, 2012-08-27, 01:49
Re: HDFS disable balancing cluster - MapReduce - [mail # user]
...you can bring up new worker nodes without the datanode service, just the task tracker.  these become compute only nodes that load and save all their data on the (mostly) persistent core...
   Author: Steve Loughran, 2012-08-17, 15:09
Re: Running zookeeper and name node on same box - MapReduce - [mail # user]
...you can run a ZK server on the NN; it's not usually that memory or CPU hungry.  Why not start out with it on, and if you do find problems over time, move it away  On 15 August 2012...
   Author: Steve Loughran, 2012-08-16, 21:18
Re: Hadoop hardware failure recovery - MapReduce - [mail # user]
...On 13 August 2012 08:42, Harsh J  wrote:  It's always something to watch out for: someone implementing a disk FS, OS, VM environment discovering that they get great benchmark numbe...
   Author: Steve Loughran, 2012-08-13, 16:10
[expand - 2 more] - Re: Problem running PI example in Hadoop 2.0.0 - MapReduce - [mail # user]
...that's ubuntu for you. I'll update the wiki   On 10 August 2012 10:54, Arjun Reddy  wrote:    Steve Loughran Hortonworks Inc [EMAIL PROTECTED] skype: steve_loughran tel: ...
   Author: Steve Loughran, 2012-08-10, 18:23
Re: Cannot create a new Jira issue for MapReduce - MapReduce - [mail # dev]
...There's been disk problems w/ Jira recently. Githubs been playing up this morning to. Time to put away the dev tools and get powerpoint out instead  On 9 August 2012 13:38, Robert Evans...
   Author: Steve Loughran, 2012-08-09, 23:33
Re: Apache Hadoop 0.23.1 Source Build Failing - MapReduce - [mail # user]
...On 9 August 2012 03:46, Pankaj Misra  wrote:  'ld' is there -it's returning an error about linkage problems  configure:2584: gcc -DHADOOP_CONF_DIR=/etc/hadoop -m32   conf...
   Author: Steve Loughran, 2012-08-09, 16:46
Re: is HDFS RAID "data locality" efficient? - MapReduce - [mail # user]
...On 8 August 2012 09:46, Sourygna Luangsay  wrote:  ��fresh exactly: less space use on cold data, with the penalty that access performance can be worse. As the majority of data on a...
   Author: Steve Loughran, 2012-08-08, 17:31
Re: is hadoop FileSystem class thread-safe? - MapReduce - [mail # user]
...In Hadoop 1.x, FS instances get cached so you end up getting the same one unless you explicitly say no at the time of retrieval      conf.setBoolean("fs.hdfs.impl.disable.cach...
   Author: Steve Loughran, 2012-08-07, 20:30
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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