[OpenIndiana-discuss] CIFS domain controller "not responding" errors

[Gordon Ross]

You should trace (i.e. with snoop) the client/server traffic, and find out
which side is being slow to send the next frame.

On Thu, Sep 29, 2011 at 3:49 PM, Bryan S. Leaman <leaman at bitbytes.com> wrote:
> On 9/29/2011 3:32 PM, Gordon Ross wrote:
>>
>> On Thu, Sep 29, 2011 at 2:40 PM, Bryan S. Leaman<leaman at bitbytes.com>
>>  wrote:
>>>
>>> I have a CIFS share set up on oi_151a, and it's working fine except that
>>> during times of sustained activity I get the following errors in
>>> /var/adm/messages frequently, every 3 to 5 minutes.  I also noticed that
>>> if
>>> I keep the share idle for awhile, then run a "dir" from a mapped client,
>>> it
>>> hangs for 5 to 10 seconds and when it displays the directory listing I
>>> get
>>> the same set of errors in /var/adm/messages.  After this happens once,
>>> then
>>> it's fine for some time with no delay on the client side.
>>>
>>> Sep 29 14:14:23 oi151dev nsmb: [ID 176748 kern.notice] SMB server dc01
>>> not
>>> responding
>>> Sep 29 14:14:23 oi151dev nsmb: [ID 350600 kern.notice] SMB server dc01 OK
>>> Sep 29 14:19:07 oi151dev nsmb: [ID 176748 kern.notice] SMB server dc01
>>> not
>>> responding
>>> Sep 29 14:19:07 oi151dev nsmb: [ID 350600 kern.notice] SMB server dc01 OK
>>> Sep 29 14:24:38 oi151dev nsmb: [ID 176748 kern.notice] SMB server dc01
>>> not
>>> responding
>>> Sep 29 14:24:38 oi151dev nsmb: [ID 350600 kern.notice] SMB server dc01 OK
>>>
>>> I've copied hundreds of gigs of data to this share with robocopy without
>>> any
>>> failures on the client side, but something seems to be broken somewhere.
>>>  Any ideas?
>>>
>>> Bryan
>>
>> That noise is nothing to worry about.  It's the SMB client (nsmb is a
>> helper for smbfs)
>> complaining that the SMB server has not sent it any responses in 15
>> seconds or so.
>> Perhaps that timer should be longer...  Or you need a faster server:)
>>
>> Gordon
>
> OK, that's good to know.  However, why would I be experiencing hangs during
> which no data is flowing or the directory listing takes a long time?  It
> seems to be related because the logs are generated immediately when it stops
> hanging.  Are there any settings I should be tweaking?
>
> Bryan
>
> Bryan
>
>
> _______________________________________________
> OpenIndiana-discuss mailing list
> OpenIndiana-discuss at openindiana.org
> http://openindiana.org/mailman/listinfo/openindiana-discuss
>