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From Paul Libbrecht <p...@activemath.org>
Subject Re: NFS
Date Wed, 18 May 2005 10:48:19 GMT
Le 18 mai 05, à 11:51, John Haxby a écrit :
> Otis Gospodnetic wrote:
>> I haven't used Lucene with NFS.  My understanding is that the problem
>> is with lock files when they reside on the NFS server.  Yes, you can
>> change the location of lock files with a system property, but if you
>> are using NFS to make the index accessible from multiple machines, 
>> then
>> changing the lock file directory to a local directory doesn't make
>> sense.  However, it sounds like you are using a NFS-mounted partition
>> simply because that's where you have sufficient space, not because you
>> need to access the index from multiple machines, so you should be OK
>> with changing the lock file directory to a local dir.
>>
> I haven't tried this, but under Linux (at least), you can specify the 
> "nolock" parameter to make file locking appen locally.   Of course, 
> this will make it impossible to use NFS to share the index among 
> several machines, but, as Otis said, that doesn't seem to be the 
> requirement here.

Just a hint that we have experienced using Lucene Indexes on NFS 
partitions to be much much slower than local partitions... aside of the 
little lock issues.

paul


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