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[HADOOP-533] TestDFSShellGenericOptions creates a sub-directory in conf/ - Hadoop - [issue]
...TestDFSShellGenericOptions creates a subdirectory of conf/.  This is not removed.Generally, the build & test process should not create or modify files outside of the build/ director...
http://issues.apache.org/jira/browse/HADOOP-533    Author: Doug Cutting, 2009-07-08, 16:42
[HADOOP-158] dfs should allocate a random blockid range to a file, then assign ids sequentially to blocks in the file - Hadoop - [issue]
...A random number generator is used to allocate block ids in dfs.  Sometimes a block id is allocated that is already used in the filesystem, which causes filesystem corruption.A short-ter...
http://issues.apache.org/jira/browse/HADOOP-158    Author: Doug Cutting, 2009-07-08, 16:41
[HADOOP-75] dfs should check full file availability only at close - Hadoop - [issue]
...Currently it appears that dfs checks that the namenode knows about all blocks in a file as each block is written.  It would be more efficient to only check that all blocks are stored so...
http://issues.apache.org/jira/browse/HADOOP-75    Author: Doug Cutting, 2009-07-08, 16:41
[HADOOP-74] hash blocks into dfs.data.dirs - Hadoop - [issue]
...When dfs.data.dir has multiple values, we currently start a DataNode for each (all in the same JVM).  Instead we should run a single DataNode that stores block files into the different ...
http://issues.apache.org/jira/browse/HADOOP-74    Author: Doug Cutting, 2009-07-08, 16:41
[HADOOP-50] dfs datanode should store blocks in multiple directories - Hadoop - [issue]
...The datanode currently stores all file blocks in a single directory.  With 32MB blocks and terabyte filesystems, this will create too many files in a single directory for many filesyste...
http://issues.apache.org/jira/browse/HADOOP-50    Author: Doug Cutting, 2009-07-08, 16:41
[HADOOP-51] per-file replication counts - Hadoop - [issue]
...It should be possible to specify different replication counts for different files.  Perhaps an option when creating a new file should be the desired replication count.  MapReduce s...
http://issues.apache.org/jira/browse/HADOOP-51    Author: Doug Cutting, 2009-07-08, 16:41
[HADOOP-171] need standard API to set dfs replication = high - Hadoop - [issue]
...There should be a standard way to indicate that files should be highly replicated, appropriate for files that all nodes will read.  This should be settable both on file creation and for...
http://issues.apache.org/jira/browse/HADOOP-171    Author: Doug Cutting, 2009-07-08, 16:41
Re: Combiner Problem - Hadoop - [mail # general]
...This question would be more appropriate on the mapreduce-users at  hadoop.apache.org mailing list.  Unfortunately Hadoop's website is out of date right now and does not  descr...
   Author: Doug Cutting, 2009-07-04, 17:20
Fwd: [VOTE] Avro release 1.0.0 (candidate 1) - Hadoop - [mail # general]
...Can folks please download and test this new Avro release candidate?  Votes should be cast on avro-dev@.  Thanks,  Doug  From: Doug Cutting  Date: Thu, Jul 2, 2009 at...
   Author: Doug Cutting, 2009-07-03, 04:50
Re: jira notifications on common, hdfs, and mapreduce - Hadoop - [mail # general]
...Doug Cutting wrote:  Arun?  I'm trying to decide whether I must add a filter to automatically  delete the second copy of these messages, or whether we can eliminate  the ...
   Author: Doug Cutting, 2009-07-02, 23:37
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