[OmniOS-discuss] Failing zfs send / receive

[Chris Nagele]

Just a heads up that we resolved this. It ended up being a network
issue, even though ping/traceroute was not showing any problems.

We asked our data center to change the routes away from NTT and the
timeouts went away. So strange, but it must have been something
between the two data centers that caused the issue.

Chris

On Sat, Dec 28, 2013 at 5:13 PM, Chris Nagele <nagele at wildbit.com> wrote:
> Regarding entropy, this seems crazy:
>
> Random number device statistics:
> 9996376040162949185 bytes generated for /dev/random
> 6821614472103628244 bytes read from /dev/random cache
> 5345995122346756435 bytes generated for /dev/urandom
>
>
>
> On Sat, Dec 28, 2013 at 4:21 PM, Chris Nagele <nagele at wildbit.com> wrote:
>> Yes, I even rebooted the server to be sure. Is this line stating that
>> it is still using gss-api?
>>
>> Chris
>>
>> On Sat, Dec 28, 2013 at 4:19 PM, Michael Rasmussen <mir at miras.org> wrote:
>>> Did you remember to restart SSH on the server?
>>>
>>> On Dec 28, 2013 10:12 PM, Chris Nagele <nagele at wildbit.com> wrote:
>>>>
>>>> After some more testing I can see that it gets hung up here most of
>>>> the time, but not every time:
>>>>
>>>> debug1: Failed to acquire GSS-API credentials for any mechanisms (No
>>>> credentials were supplied, or the credentials were unavailable or
>>>> inaccessible)
>>>> debug1: SSH2_MSG_KEXINIT sent
>>>>
>>>> I do have gssapi set to no in /etc/ssh/ssh_config on the client and in
>>>> sshd_config on the server.
>>>>
>>>> Chris
>>>>
>>>> On Sat, Dec 28, 2013 at 12:56 PM, Chris Nagele <nagele at wildbit.com> wrote:
>>>> > How can I check if it runs out of entropy?
>>>> >
>>>> > It is connecting to the same server and nothing else. I assume it is always
>>>> > serving another request since it is so busy. The hard part is that it is
>>>> > random.
>>>> >
>>>> > Vmstat looked normal in terms of usage and swap. What else can I look for?
>>>> >
>>>> > Also, I will see if it has the same behavior connecting to other servers.
>>>> >
>>>> > Thanks!
>>>> >
>>>> >
>>>> > On Saturday, December 28, 2013, Michael Rasmussen wrote:
>>>> >>
>>>> >> On Sat, 28 Dec 2013 12:22:35 -0500
>>>> >> Chris Nagele <nagele at wildbit.com> wrote:
>>>> >>
>>>> >> >
>>>> >> > What I do see is ssh hanging for 10 seconds or so if I run commands
>>>> >> > over it. For instance, if I run "ssh -vvv host ls -l" a bunch of times
>>>> >> > it is usually very fast, but will hang every 30 times for several
>>>> >> > seconds.
>>>> >> >
>>>> >> Is this seen when connecting to the same server or is it a generel
>>>> >> observation?
>>>> >>
>>>> >> When it hangs is the server serving other requests at the same time?
>>>> >> Does vmstat on the server show something when it hangs?
>>>> >>
>>>> >> --
>>>> >> Hilsen/Regards
>>>> >> Michael Rasmussen
>>>> >>
>>>> >> Get my public GnuPG keys:
>>>> >> michael <at> rasmussen <dot> cc
>>>> >> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xD3C9A00E
>>>> >> mir <at> datanom <dot> net
>>>> >> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE501F51C
>>>> >> mir <at> miras <dot> org
>>>> >> http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xE3E80917
>>>> >> --------------------------------------------------------------
>>>> >> /usr/games/fortune -es says:
>>>> >> Death is God's way of telling you not to be such a wise guy.
>>>>
>>>> !DSPAM:52bf3ec258095089412099!
>>>>
>>>>