Thorsen,
Your problem sounds familiar ...
We have 2 Networker servers, one with 146 clients and 8 storage nodes
and the other 250 clients and more 20 storage nodes. One server is
running 6.1.3 and the other 7.1.2. Server and storage nodes are running
on PrimePower 2000 domains and SunFire 15K domains. There are 2 ADIC
S10K and 2 ADIC S1K all virtualized using SDLC software.
We also suffered "too many open files" syndrome during heavy load.
ulimit -n is set to 2048. No fix was proposed by Legato except to also
lower tcp_time_wait_interval to 60000 (by default it is on 2400000).
Greg
> -----Original Message-----
> From: Legato NetWorker discussion
> [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU] On Behalf Of Thorsten Linow
> Sent: Thursday, July 08, 2004 3:11 PM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Too many open files
>
>
> ---------------------- Information from the mail header
> -----------------------
> Sender: Legato NetWorker discussion
> <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>
> Poster: Thorsten Linow <Linow.Thorsten AT TALKLINE DOT DE>
> Subject: Too many open files
> --------------------------------------------------------------
> -----------------
>
> Hi,
> After upgrading Legato Networker 6.1.3 towards 7.1.2 we got
> lots of "service at 0.0.0.0/5833error from accept call: Too
> many open files"=20 messages in the daemon.log, during heavy
> load caused by obviously=20 too many client connection
> requests. The Legato Networker Server was busy near death,
> nsrd occupied=20 one CPU by 100% but the Server was more or
> less idle. We had semilar situations several times in the
> past but we got no clue wh= y. Just since we upgraded we got
> this detailed messages in the daemon.log,=20 so now we know
> where to start to investigate.
>
> Our LNS is a Sun V880 based on 8 gigs of RAM and 4 times 750
> MHz cpu's. As recommended by our service-partner we increased
> the /etc/system parame= ter=20
>
> rlim_fd_cur
>
> and=20
>
> rlim_fd_max=20
>
> towards 4096 (old value was 1024)
>
> My question is if there are any recommended values, and/or
> any dependency= based on the number of clients or
> server-parallelism or what ever...
>
> About our environment:
> 140 clients, 7 Solaris based Storage nodes, LNS and Alphastor
> Server runn= ing together on one Host,=20
> Tapedrive-environment connected via SAN: 20 * STK9840 plus 6
> * STK9940B, = located in Powderhorn, controlled by ACSLS.
>
> Any help would be appreciated.
>
> Regards Thorsten Linow
>
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