[Gluster-users] hangs on accessing files on gluster mount (3.2.0)

[Mohit Anchlia]

Are you able to read the file after you re-start gluster? Can you try
to read using strace for the files you see hanging and post it here?
It might help developers to take a look.

I also suggest opening a bug since it looks like a critical issue.

On Mon, May 9, 2011 at 6:43 AM, Tomasz Chmielewski <mangoo at wpkg.org> wrote:
> On 09.05.2011 13:08, Tomasz Chmielewski wrote:
>>
>> On 09.05.2011 12:48, Mohammed Junaid Ahmed wrote:
>>>
>>> Hi Tomasz,
>>>
>>> Can you attach the logfiles, that will help. When does it happen - Does
>>> this happen just after the mount? What is the state of the server processes
>>> (are they busy or idle)?
>>
>> It usually happens several hours after the mount.
>>
>> Frankly, I don't see anything special in the log on either client or
>> server.
>>
>> Only something like this relating to the "hanging" file (15064.jpeg),
>> after I restarted gluster on the client:
>>
>> ./bricks/home-gluster-data.log-[2011-05-09 12:30:17.689988] W
>> [socket.c:1494:__socket_proto_state_machine] 0-tcp.gluster-data-server:
>> reading from socket failed. Error (Transport endpoint is not connected),
>> peer (192.168.1.30:1021)
>> ./bricks/home-gluster-data.log:[2011-05-09 12:30:17.690107] I
>> [server-helpers.c:485:do_fd_cleanup] 0-gluster-data-server: fd cleanup on
>> /www/storage/article/2307/15064.jpeg
>> ./bricks/home-gluster-data.log:[2011-05-09 12:30:17.690154] I
>> [server-helpers.c:485:do_fd_cleanup] 0-gluster-data-server: fd cleanup on
>> /www/storage/article/2307/15064.jpeg
>> ./bricks/home-gluster-data.log-[2011-05-09 12:30:17.690180] I
>> [server-helpers.c:485:do_fd_cleanup] 0-gluster-data-server: fd cleanup on
>> /www/storage_cache/cache/photos/link/21/21_6.jpg
>> ./bricks/home-gluster-data.log-[2011-05-09 12:30:17.690203] I
>> [server.c:438:server_rpc_notify] 0-gluster-data-server: disconnected
>> connection from 192.168.1.30:1021
>> ./bricks/home-gluster-data.log-[2011-05-09 12:30:17.690235] I
>> [server-helpers.c:783:server_connection_destroy] 0-gluster-data-server:
>> destroyed connection of
>> web1-4803-2011/05/06-23:25:46:900589-gluster-data-client-0
>> ./bricks/home-gluster-data.log-[2011-05-09 12:30:31.589199] I
>> [server-handshake.c:534:server_setvolume] 0-gluster-data-server: accepted
>> client from 192.168.1.30:1017
>>
>>
>>
>> If it matters, I was copying hundreds of thousand of files from a
>> different gluster client in the meantime, using rsync
>> (which creates a temporary file and renames it upon completion) - not sure
>> if it can be related.
>>
>> I stopped copying now to see if the issue still shows up.
>
> It hangs also when I don't use rsync.
>
> It's something fishy here.
>
> Are such stalls while reading files known with glusterfs 3.2.0?
>
>
> --
> Tomasz Chmielewski
> http://wpkg.org
>
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