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[HADOOP-12557] Add information in BUILDING.txt about the need for the FINDBUGS_HOME environment variable for docs builds. - Hadoop - [issue]
...BUILDING.txt mentions Findbugs 1.3.9 as a requirement, but it doesn't mention that the FINDBUGS_HOME environment variable must point to the base directory of the Findbugs installation when r...
http://issues.apache.org/jira/browse/HADOOP-12557    Author: Chris Nauroth, 2016-01-06, 05:20
Re: Can't run rebalancer because it thinks another is running - Hadoop - [mail # user]
...If this is an Ambari-managed cluster that was transitioned from non-HA to running in HA mode, then you might be interested in a known Ambari bug:https://issues.apache.org/jira/browse/AMBARI-...
   Author: Chris Nauroth, 2016-01-05, 22:23
[expand - 2 more] - Re: Directly reading from datanode using JAVA API got socketTimeoutException - Hadoop - [mail # user]
...Yes, good point about the combination of one local short-circuit read + one remote read.From: Tenghuan He >Date: Monday, January 4, 2016 at 9:42 AMTo: Chris Nauroth >Cc: "[EMAIL PROTEC...
   Author: Chris Nauroth, 2016-01-04, 21:18
[HADOOP-11127] Improve versioning and compatibility support in native library for downstream hadoop-common users. - Hadoop - [issue]
...There is no compatibility policy enforced on the JNI function signatures implemented in the native library.  This library typically is deployed to all nodes in a cluster, built from a s...
http://issues.apache.org/jira/browse/HADOOP-11127    Author: Chris Nauroth, 2015-12-21, 19:17
Re: Issue while running sqoop script parallel - Hadoop - [mail # user]
...Hello Saravanan,HDFS implements a single-writer model for its files, so if 2 clients concurrently try to open the same file path for write or append, then one of them will receive an error. ...
   Author: Chris Nauroth, 2015-12-20, 19:22
Re: hadoop datanode read or write block error - Hadoop - [mail # user]
...Hello Evan,It looks like there are two separate problems.The errors that mention "disk usage" indicate that the DataNode forked to call "du -sk", but the command didn't return any output. &n...
   Author: Chris Nauroth, 2015-12-16, 20:53
[HADOOP-12643] Allow getmerge command to skip writing the CRC file. - Hadoop - [issue]
...The -getmerge shell command always write a local CRC file.  It's prefixed with a '.', so it's a hidden file and often goes unnoticed.  This behavior differs from -get, which skips ...
http://issues.apache.org/jira/browse/HADOOP-12643    Author: Chris Nauroth, 2015-12-15, 18:25
Re: Dependency on absolute path /bin/ls in Shell.java - Hadoop - [mail # user]
...Hello Samuel,Issue HADOOP-11935 tracks an improvement to re-implement this code pathusing either JNI to OS syscalls or the JDK 7 java.nio.file APIs (probablythe latter).https://issues.apache...
   Author: Chris Nauroth, 2015-12-11, 17:49
Re: How do I run ZKFC on a different node that is not the name node? - Hadoop - [mail # user]
...Hello,I can see 2 potential problems.1. I see property "dfs.ha.namenodescluster" below.  If that is really whatyou have in your hdfs-site.xml, and not just a copy-paste error, then itlo...
   Author: Chris Nauroth, 2015-12-10, 18:35
Re: Socket Timeout Exception while multiple concurrent applications are reading HDFS data through WebHDFS interface - Hadoop - [mail # user]
...Hello Krishna,Judging from that stack trace, it looks like you have written a client application that uses Apache HTTP Components to make HTTP calls to WebHDFS.  The exception is a clie...
   Author: Chris Nauroth, 2015-12-09, 18:42
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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