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[HADOOP-11886] Failed to run distcp against ftp server installed on Windows - Hadoop - [issue]
...Could run distcp against ftp server installed on Linux, but could NOT run distcp against ftp server installed on Windows(such as IIS ftp service). However, distcp works well for FileZilla ft...
http://issues.apache.org/jira/browse/HADOOP-11886    Author: sam liu, 2015-04-29, 03:27
[expand - 2 more] - Re: Failed to run distcp against ftp server installed on Windows. - Hadoop - [mail # user]
...for IIS ftp server on Windows, seems the distcp tool always failed on theline 'client.setFileTransferMode(FTP.BLOCK_TRANSFER_MODE)' inhadoop/hadoop-common-project/hadoop-common/src/main/java...
   Author: sam liu, 2015-04-29, 02:36
[expand - 2 more] - Re: Questions on rollback/upgrade HDFS with QJM HA enabled - Hadoop - [mail # user]
...For HDFS rollback with QJM HA enabled, I tried following steps, but failed:0. Stop the whole Hadoop cluster1. Update env parameters to use old Hadoop binaries2. Start JNs:sudo -u hdfs $HADOO...
   Author: sam liu, 2015-01-26, 06:29
Does MRv2 support the deprecated properties? - Hadoop - [mail # user]
...Hi Experts,In Hadoop 2.x code, there are lots of deprecated properties and many ofthem have new version in 2.x code.For example,org.apache.hadoop.mapred.JobConf#MAPRED_JOB_MAP_MEMORY_MB_PROP...
   Author: sam liu, 2014-12-23, 02:34
[expand - 2 more] - Re: Both hadoop fsck and dfsadmin can not detect missing replica in time? - Hadoop - [mail # user]
...I manually removed the block replica file on datanode and the removed filepath is '${dfs.datanode.data.dir}/current/BP-1640683473-9.181.64.230-1415757100604/current/finalized/subdir52/blk_10...
   Author: sam liu, 2014-11-14, 05:56
[expand - 3 more] - Re: Can add a regular check in DataNode on free disk space? - Hadoop - [mail # user]
...Hi Aitor,Actually I did so in my test. But the issue is that I did not find diskfull info in any log.2014-10-20 4:00 GMT-07:00 Aitor Cedres : ...
   Author: sam liu, 2014-10-20, 11:15
[expand - 2 more] - Re: Failed to rollback from hadoop-2.4.1 to hadoop 2.2.0 - Hadoop - [mail # user]
...I rollback from 2.4.1 to 2.2.0 and seems 2.2.0 does not has optionupgradeProgress, right?I guess it might be a hadoop issue, as I still could not start datanodeafter rollback2014-09-18 4:15 ...
   Author: sam liu, 2014-09-21, 04:09
Start standby namenode using bootstrapStandby hangs - Hadoop - [mail # user]
...Hi Experts,My hadoop cluster is enabled HA with QJM and I failed to upgrade it fromversion 2.2.0 to 2.4.1. Why? Is this a existing issue?My steps:1. Stop hadoop cluster2. On each node, upgra...
   Author: sam liu, 2014-09-10, 09:02
HDFS rollingUpgrade failed due to unexpected storage info - Hadoop - [mail # user]
...Hi Experts,According to section 'Upgrading Non-Federated Clusters' ofhttp://hadoop.apache.org/docs/r2.4.0/hadoop-project-dist/hadoop-hdfs/HdfsRollingUpgrade.html,I tried to upgrade hadoop 2....
   Author: sam liu, 2014-09-01, 07:11
[HADOOP-10759] Remove hardcoded JAVA_HEAP_MAX in hadoop-config.sh - Hadoop - [issue]
...In hadoop-common-project/hadoop-common/src/main/bin/hadoop-config.sh, there is a hard code for Java parameter: 'JAVA_HEAP_MAX=-Xmx1000m'. It should be removed....
http://issues.apache.org/jira/browse/HADOOP-10759    Author: sam liu, 2014-08-22, 08:18
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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