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Re: reducer gets values with empty attributes - MapReduce - [mail # user]
...Hi,  Here is the map and reduce part of the code    public void map(Text key, Writable  value, OutputCollector output, Reporter reporter) throws IOException {   &nbs...
   Author: alxsss@..., 2013-05-01, 18:12
Re: Regarding: Merging two hadoop clusters - MapReduce - [mail # user]
...Are those clusters located in separate  LANs?          From: Azuryy Yu  To: user  Sent: Thu, Mar 14, 2013 5:06 am Subject: Re: Regarding: Merging two ...
   Author: alxsss@..., 2013-03-14, 18:03
Re: balancer and under replication - MapReduce - [mail # user]
...Are you sure  the balancer does anything? I have about 500 missing replicas and 60  Under-replicated blocks and when I start balancer it does not do anything. The balancer outputs ...
   Author: alxsss@..., 2013-01-08, 01:15
[expand - 1 more] - Re: number of mapred slots - MapReduce - [mail # user]
...I have two slave nodes and one master. One slave node has quad core(4 cpus)(16GB mem) the other slave has  dual core (2 cpus) (16 GB mem) and master has dual core  4GB mem. I run h...
   Author: alxsss@..., 2012-12-18, 06:39
Re: number of reducers - MapReduce - [mail # user]
... What is the relationship between number of reducers and cpu cores in your setup? I read somewhere that it must be .5 of number of cpu cores.  Thanks. Alex.       &n...
   Author: alxsss@..., 2012-11-20, 22:00
[expand - 2 more] - Re: problem with hadoop-snappy - MapReduce - [mail # user]
... Yes, I have installed snappy-1.0.5.  Here is the output of   ls -l /usr/local/lib total 1468 lrwxrwxrwx. 1 root root     52 Nov  5 16:00 libjvm.so -> /usr/j...
   Author: alxsss@..., 2012-11-07, 01:42
where to download hadoop-1.0.0 - MapReduce - [mail # user]
...Hello,  I try to use hbase-0.92.1 which is compatible with hadoop-1.0.0. However, I  do not see this version of hadoop in the download page. For example, http: //apache.mirrors.pai...
   Author: alxsss@..., 2012-10-05, 19:06
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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