[Xapian-discuss] Xapian over NFS (again...)

[Miki Tebeka]

Hello shad,

> I've read some of documentation about xapian over NFS and I have
> probably found a bug.
> 
> I use several readers on a xapian index mounted over NFS. I use a
> try/catch mechanism to reopen database only on modifications
> (DatabaseModifiedError exception). My software works great on a local
> filesystem. But I noticed that there is no DatabaseModifiedError
> exception raised on NFS. So all readers never reopen the database on
> modifications. I tried some different configurations. For example set
> NFS mount with sync, noactime. But nothing changed.
> 
> I ask myself if it's a good thing to reopen the database for each search query.
I had the same problem, one of the things I found that on linux you should
have rpc.statd running on the client machine.

Another thing was to batch the writes (I have about 120000 a day), this
also helped a lot.

Last I switched to running xapian-tcpsrv on the local storage.

All the best,
--
Miki Tebeka
miki at fattoc.com