Details
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Task
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Status: Resolved
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Major
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Resolution: Fixed
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0.14.0
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None
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None
Description
Following a user@ discussion :
Thomas Friol wrote: > Other question, : Why the 'hadoop.tmp.dir' is user.name dependant ? We need a directory that a user can write and also not to interfere with other users. If we didn't include the username, then different users would share the same tmp directory. This can cause authorization problems, if folks' default umask doesn't permit write by others. It can also result in folks stomping on each other, when they're, e.g., playing with HDFS and re-format their filesystem. We should better document configuring things for fully distributed operation. In particular, we should probably recommend setting mapred.system.dir in the "Fully Distributed Operation" section of: http://lucene.apache.org/hadoop/api/overview-summary.html#overview_description The wiki should also probably describe this better.