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Re: is hadoop FileSystem class thread-safe?Steve Loughran 2012-08-07, 20:30
> On Sun, Aug 5, 2012 at 6:13 PM, Koert Kuipers <[EMAIL PROTECTED]> wrote:
>>
>> Can i share one instance safely amount multiple threads?
>
>
In Hadoop 1.x, FS instances get cached so you end up getting the same
one unless you explicitly say no at the time of retrieval
conf.setBoolean("fs.hdfs.impl.disable.cache", true);
FileSystem filesys = FileSystem.get(conf);
This is the way to guarantee isolation. newInstance() is a later feature
>>
>> Can i share one instance safely amount multiple threads?
>
>
In Hadoop 1.x, FS instances get cached so you end up getting the same
one unless you explicitly say no at the time of retrieval
conf.setBoolean("fs.hdfs.impl.disable.cache", true);
FileSystem filesys = FileSystem.get(conf);
This is the way to guarantee isolation. newInstance() is a later feature
