Hi,
I tried it first with MS_ASYNC and that was not enough to make it work on
my system.
Regards,
Tjerk
[EMAIL PROTECTED] wrote: -----
>To: Dan Cech <[EMAIL PROTECTED]>
>From: Tobias Oetiker <[EMAIL PROTECTED]>
>Sent by:[EMAIL PROTECTED]
>Date: 07-09-2007 14:01
>cc:[EMAIL PROTECTED],[EMAIL PROTECTED]
>Subject: Re: [rrd-users] rrdtutorial not working
>
>Hi Dan,
>
>yes except that I don't think MS_SYNC is ideal it should rather be
>MS_ASYNC and have the OS decide when to sync ... or would this not
>suffice ?
>
>otoh, things will only work well once the architecture independent
>rrd file format is implemented ...
>
>cheers
>tobi
>
>
>>[EMAIL PROTECTED]:
>> > I read that there can be a problem when using mmap/munmap on NFS.
>> > On http://nfs.sourceforge.net/ there is a part over mmap and NFS. According
>> > to the msync man page you should use msync before a munmap.
>> >
>> > I have add 2 msync function call in rrd_update.c and it looks to help.
>> >
>> > #ifdef HAVE_MMAP
>> > msync(rrd_mmaped_file, rrd_filesize,MS_SYNC);
>> > munmap(rrd_mmaped_file, rrd_filesize);
>> > #endif
>> >
>> > Is there a reason that you don't use a msync?
>>
>> This is a very good point, and what seems like a simple solution.
>>
>> Support for working with rrds on an nfs mount would be a great thing in
>> several situations, especially if you have multiple collectors and/or
>> multiple front-end hosts all needing to access the same set of rrds.
>>
>> What are your thoughts Tobi?
>>
>> Dan
>>
>> _______________________________________________
>> rrd-users mailing list
>>[EMAIL PROTECTED]
>> https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
>>
>>
>
>--
>Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten
>http://[EMAIL PROTECTED]
>
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