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[HADOOP-666] hadoop dfs  does not complain about unknown option - Hadoop - [issue]
...No error message displayed when wrong arguments were fed to "hadoop dfs" as shown by the snippet at the end of this description.hadoop dfs -rmr/user/arkady/doremi /user/arkady/fuchun /user/a...
http://issues.apache.org/jira/browse/HADOOP-666    Author: dhruba borthakur, 2009-07-08, 16:42
[HADOOP-681] Adminstrative hook to pull live nodes out of a HDFS cluster - Hadoop - [issue]
...Introduction------------An administrator sometimes needs to bring down a datanode for scheduled maintenance. It would be nice if HDFS can be informed about this event. On receipt of this eve...
http://issues.apache.org/jira/browse/HADOOP-681    Author: dhruba borthakur, 2009-07-08, 16:42
[HADOOP-621] When a dfs -cat command is killed by the user, the correspondig hadoop process does not get aborted - Hadoop - [issue]
...if I use hadoop dfs -cat  in a pipeline, and kill the consumer of -cat output, the hadoop process stays alive....
http://issues.apache.org/jira/browse/HADOOP-621    Author: dhruba borthakur, 2009-07-08, 16:42
[HADOOP-1269] DFS Scalability: namenode throughput impacted becuase of global FSNamesystem lock - Hadoop - [issue]
...I have been running a 2000 node cluster and measuring namenode performance. There are quite a few "Calls dropped" messages in the namenode log. The namenode machine has 4 CPUs and each CPU i...
http://issues.apache.org/jira/browse/HADOOP-1269    Author: dhruba borthakur, 2009-07-08, 16:41
[HADOOP-1064] dfsclient logging messages should have appropriate log levels - Hadoop - [issue]
...The log messages printed out by DFSClient may pollute the applications' log. Thus, all log messages from the DFSClient should have appropriate log levels so that extraneous messages do not a...
http://issues.apache.org/jira/browse/HADOOP-1064    Author: dhruba borthakur, 2009-07-08, 16:41
[HADOOP-688] move dfs administrative interfaces to a separate command - Hadoop - [issue]
...The dfs adminsitrative commands (e.g. safemode, report, etc) should be separate from the dfs user commands. The proposal is to remove the following two commands:bin/hadoop dfs -reportbin/had...
http://issues.apache.org/jira/browse/HADOOP-688    Author: dhruba borthakur, 2009-07-08, 16:41
[HADOOP-662] dfs -ls sometime prints "Found xxx items"; sometimes it does not print that string - Hadoop - [issue]
...I get a different response from dfs -ls depending on whether or not the ls contained a directory or a wildcard. The wild card misses the response that tells me how many files.It did indeed c...
http://issues.apache.org/jira/browse/HADOOP-662    Author: dhruba borthakur, 2009-07-08, 16:41
[HADOOP-1185] dynamically change log levels - Hadoop - [issue]
...I would like to switch on the debug log level of the namenode (or other components) without restarting it. This is needed to analyze a production system.Can somebody please advice on how to ...
http://issues.apache.org/jira/browse/HADOOP-1185    Author: dhruba borthakur, 2008-02-08, 23:37
[HADOOP-720] Write a white paper on Hadoop File System Architecture, Design and Features - Hadoop - [issue]
...Write a white paper on Hadoop File System Architecture, Design and Features....
http://issues.apache.org/jira/browse/HADOOP-720    Author: dhruba borthakur, 2007-01-05, 23:22
[HADOOP-635] hadoop dfs copy, move commands should accept multiple source files as arguments - Hadoop - [issue]
...hadoop dfs copy, move commands should accept multiple source files as arguments...
http://issues.apache.org/jira/browse/HADOOP-635    Author: dhruba borthakur, 2006-11-03, 22:40
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