Re: [MonetDB-users] Version 5 crashing.

Thanks for the response Peter. This is on the Lustre filesystem. http://arch.lustre.org/images/9/95/Mmap_hld.pdf I believe it supports it without any issues. Or could this be an issue? On Wed, May 13, 2009 at 8:29 AM, Peter Boncz wrote:

Databases on NFS are not supported and lead to crashes on a mmaped dbfarm afaik.

On May 13, 2009, at 2:13 PM, "Mag Gam" wrote:

...

Yes, have to be on a network filesystem. Its pretty fast, I can get close to 500MB/sec consistently.  Also, it has over 50TB of stable available :-)

This issue is getting very frustrating. :-(

On Wed, May 13, 2009 at 7:49 AM, Fabian Groffen wrote:

...

On 13-05-2009 04:34:04 -0700, Mag Gam wrote:

...

More information about the server:

MonetDB server v5.10.4 (64-bit), based on kernel v1.28.4 (64-bit oids) Copyright (c) 1993-July 2008 CWI Copyright (c) August 2008-2009 MonetDB B.V., all rights reserved Visit http://monetdb.cwi.nl/ for further information

Libraries:   libpcre: 6.6 06-Feb-2006 (compiled with 6.6)   openssl: OpenSSL 0.9.8b 04 May 2006 (compiled with OpenSSL 0.9.8b 04 May 2006)   libxml2: 2.6.26 (compiled with 2.6.26)

Compilation: gcc -O2 -std=c99 Linking    : ld -IPA -m elf_x86_64

Also,

${prefix}/var/MonetDB5/dbfarm exists on a network filesystem. I am hoping thats ok (with flocking)

Ohhh...  Never tested, but that may be (a lot) slower...  Do you really have to be on a network share?  For speed it is regardless a good idea to have the storage local.  mmapping on network shares might also be a bit less optimal.

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