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[expand - 1 more] - Re: How to let namenode http web UI port listen on another interface? - Hadoop - [mail # user]
...That works for me, thank you Susheel.But this causes one more problem - Cloudera manager can not communicatewith namenode as shown here . It seemscloudera's service monitor does not know tha...
   Author: Tao Xiao, 2014-12-19, 14:19
[expand - 1 more] - Re: How to start one nodemanager in HDP 2.0.6 ? - Hadoop - [mail # user]
...I have noticed this problem and changed from user *hadoop *to *root*, thereis no error like "mkdir: cannot create directory `/logs': Permission denied",yet errors like "mkdir: cannot create ...
   Author: Tao Xiao, 2014-05-20, 07:35
[expand - 3 more] - No job can run in YARN (Hadoop-2.2) - Hadoop - [mail # user]
...I installed Hadoop-2.2 in a cluster of 4 nodes, following Hadoop YARNInstallation: The definitiveguide.The configurations are as follows:~/.bashrc core-site.xml       &nb...
   Author: Tao Xiao, 2014-05-15, 16:26
[expand - 1 more] - Re: Can we use Kryo instead of WritableSerialization to serialize objects in Hadoop? - Hadoop - [mail # user]
...So Kryo is not good enough to replace*org.apache.hadoop.io.serializer.WritableSerialization*, Hadoop's defaultserialization implementation?Any other serialization implementation better than ...
   Author: Tao Xiao, 2014-04-23, 00:40
[expand - 1 more] - Re: A non-empty file's size is reported as 0 - Hadoop - [mail # user]
...My mapper code is as follows and I don't know whether any file is notclosed correctly.public class TheMapper extends Mapper<LongWritable, Text, Text,NullWritable> {    p...
   Author: Tao Xiao, 2014-04-08, 13:44
[expand - 1 more] - Re: How to set "hadoop.tmp.dir" if I have multiple disks per node? - Hadoop - [mail # user]
...yes, hadoop.tmp.dir is both local and hdfs .   2013/12/17 Raviteja Chirala  ...
   Author: Tao Xiao, 2013-12-17, 02:15
Re: issue about no class find in running MR job - Hadoop - [mail # user]
...how did you package and compile your jar ? did you specify the main class for the JAR file you generated ?   2013/12/13 ch huang  ...
   Author: Tao Xiao, 2013-12-13, 02:17
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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