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[expand - 1 more] - How to use docker in Hadoop, with patch of YARN-1964? - Hadoop - [mail # user]
...Hi Experts,I am very interesting that Hadoop could work with Docker and doing sometrial on patch of YARN-1964.I applied patch yarn-1964-branch-2.2.0-docker.patch of jira YARN-1964 onbranch 2...
   Author: sam liu, 2014-08-12, 09:18
[expand - 3 more] - File Permission Issue using Distributed Cache of Hadoop-2.2.0 - Hadoop - [mail # user]
...Hi Experts,The original local file has execution permission, and then it wasdistributed to multiple nodemanager nodes with Distributed Cache feature ofHadoop-2.2.0, but the distributed file ...
   Author: sam liu, 2014-05-27, 05:59
[expand - 6 more] - Re: Failed to run 'mvn package' on hadoop-2.2 using Cygwin - Hadoop - [mail # user]
...I install JDK in Cygwin. After replacing '\\' with '/', still failed.Even after I reinstalled protobuf in Cygwin, I still failed and met sameexception...I am confusing why I can not encounte...
   Author: sam liu, 2014-05-23, 03:34
Questions about Hadoop logs and mapred.local.dir - Hadoop - [mail # user]
...Hi Experts,1. The size of mapred.local.dir is big(30 GB), how many methods could cleanit correctly?2. For logs of NameNode/DataNode/JobTracker/TaskTracker, are they allrolling type log? What...
   Author: sam liu, 2014-05-16, 13:50
[expand - 1 more] - For QJM HA solution, after failover, application must update NameNode IP? - Hadoop - [mail # user]
...Hi Experts,For example, at the beginning, the application will access NameNode usingIP of active NameNode(IP: 9.123.22.1).  However, after failover, the IP ofactive NameNode is changed ...
   Author: sam liu, 2014-04-29, 13:07
[expand - 1 more] - What codes to chmod 755 to "yarn.nodemanager.log-dirs"? - Hadoop - [mail # user]
...Hi Experts,When the nodemanager log-dirs not exists, I thinkLocalDirsHandlerService#serviceInit will invokeDirectoryCollection#createDir to create the log dirs, and chmod 755 to it.However, ...
   Author: sam liu, 2014-04-24, 16:07
[expand - 1 more] - Differences between HistoryServer and Yarn TimeLine server? - Hadoop - [mail # user]
...Hi Experts,I am confusing on these two concepts. Could you help explain thedifferences?Thanks! ...
   Author: sam liu, 2014-04-23, 03:44
[expand - 1 more] - Why block sizes shown by 'fsck' and '-stat' are inconsistent? - Hadoop - [mail # user]
...Hi Experts,First, I believe it's no doubt that HDFS use only what it needs on thelocal file system. For example, we store a file(12 KB size) to HDFS, andHDFS only use 12 KB on the local file...
   Author: sam liu, 2014-04-05, 02:51
[expand - 1 more] - How to submit the patch MAPREDUCE-4490.patch which works for branch-1.2, not trunk? - Hadoop - [mail # user]
...Hi Experts,I have been working on the JIRAhttps://issues.apache.org/jira/browse/MAPREDUCE-4490 and attachedMAPREDUCE-4490.patch which could fix this jira. I would like to contributemy patch ...
   Author: sam liu, 2014-02-14, 06:51
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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