On 05/15/2012 09:02 AM, alfred de sollize wrote:
Has anybody worked with ccsm , wrf on Glusterfs? These spawn huge number
of threads for IO.
What are xlators to disable and what oher tune-ups so it stops giving  TENC
Al



Considering you have lot of threads doing I/O, can you try 'gluster volume set <VOLNAME> client-io-threads enable' and see if it makes any difference?

Regards,
Amar




On Sun, May 13, 2012 at 10:54 PM, alfred de sollize <[email protected]
<mailto:[email protected]>> wrote:

    Hi Amar,
                     The version is  in  subject line -  is Glusterfs-3.2.5

    TENC comes in clients for commands like - [cd  /home]  or [df -h /home]
    /home   - Transport End point not connected
    it also appears in server logs,
    Attaching some part of client and server logs for one of the error
    bricks
    is some problem for application integrations also? We use Centos-6.1..
    Al







    On Fri, May 11, 2012 at 11:32 AM, Amar Tumballi <[email protected]
    <mailto:[email protected]>> wrote:

        On 05/10/2012 09:39 PM, alfred de sollize wrote:

            We are setting up a 180 node cluster for weather modeling. 2
            Storage
            servers with 32GB Ram each. QDR INfiniband interconnect.
            When we run iozone with 1GB perthread (128Kb blocksize) from
            32 clients
            (2 iozone threads per client).
            The run succeeds however run fails for 64 clients and we
            start getting
            "Transport Endpoint not connected" errors.

            There are 10 bricks(5 from each server ) each of ~4.2TB
            making 42TB of
            export-volume  that is fuse-mounted on the  clients.

            There is no other error in the log files except for "TENC" .


        When you say log file, which files are you looking at. Also,
        which version of the glusterfs are you running ?

        -Amar





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