[virt-tools-list] VirtViewer and TCP Keepalives

[Colin Coe]

OK, using my colleagues F19 PC, I was able to get an strace of
remote-viewer.

grepping for setsockopt on the strace output shows
---
30548 setsockopt(10, SOL_SOCKET, SO_ATTACH_FILTER,
"\10\0\0\0\0\0\0\0\20\204\26\363\377\177\0\0", 16) = 0
30548 setsockopt(10, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
30548 setsockopt(18, SOL_SOCKET, SO_ATTACH_FILTER,
"\10\0\0\0\0\0\0\0\260\202\26\363\377\177\0\0", 16) = 0
30548 setsockopt(18, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
30548 setsockopt(9, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
30548 setsockopt(9, SOL_TCP, TCP_NODELAY, [1], 4) = 0
30548 setsockopt(9, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
30548 setsockopt(9, SOL_TCP, TCP_NODELAY, [1], 4) = 0
30548 setsockopt(22, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
30548 setsockopt(22, SOL_TCP, TCP_NODELAY, [1], 4) = 0
30548 setsockopt(22, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
30548 setsockopt(22, SOL_TCP, TCP_NODELAY, [1], 4) = 0
30548 setsockopt(25, SOL_SOCKET, SO_KEEPALIVE, [1], 4 <unfinished ...>
30548 <... setsockopt resumed> )        = 0
30548 setsockopt(25, SOL_TCP, TCP_NODELAY, [1], 4 <unfinished ...>
30548 <... setsockopt resumed> )        = 0
30548 setsockopt(25, SOL_SOCKET, SO_KEEPALIVE, [1], 4 <unfinished ...>
30548 <... setsockopt resumed> )        = 0
30548 setsockopt(25, SOL_TCP, TCP_NODELAY, [1], 4 <unfinished ...>
30548 <... setsockopt resumed> )        = 0
30548 setsockopt(24, SOL_SOCKET, SO_KEEPALIVE, [1], 4 <unfinished ...>
30548 <... setsockopt resumed> )        = 0
30548 setsockopt(24, SOL_TCP, TCP_NODELAY, [1], 4 <unfinished ...>
30548 <... setsockopt resumed> )        = 0
30548 setsockopt(25, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
30548 setsockopt(25, SOL_TCP, TCP_NODELAY, [1], 4) = 0
30548 setsockopt(30, SOL_SOCKET, SO_ATTACH_FILTER,
"\10\0\0\0\0\0\0\0\300~\26\363\377\177\0\0", 16) = 0
30548 setsockopt(30, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
30548 setsockopt(27, SOL_SOCKET, SO_ATTACH_FILTER,
"\10\0\0\0\0\0\0\0\340z\26\363\377\177\0\0", 16) = 0
30548 setsockopt(27, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0
---

So remote-viewer is sending keep alives...

Back to wondering why, after 30 minutes of inactivity, the SPICE sessions
become unusable in our environment.

CC


On Wed, Sep 18, 2013 at 8:21 PM, Colin Coe <colin.coe at gmail.com> wrote:

> I'll wait til Friday (not in the office tomorrow and working from home
> ATM) and try from my colleagues PC (F19) as that has virt-viewer 0.5.6
>
> Thanks
>
>
> On Wed, Sep 18, 2013 at 8:11 PM, Christophe Fergeau <cfergeau at redhat.com>wrote:
>
>> On Wed, Sep 18, 2013 at 08:01:10PM +0800, Colin Coe wrote:
>> > Yep, tried that and get error "Cannot determine the connection type from
>> > URI"
>> >
>> > remote-viewer -V
>> > remote-viewer version 0.5.4
>>
>> Ah hmm this is too old to be able to open the .vv file, support was added
>> in 0.5.5. I'd say you are missing some certificates for the SSL
>> connection.
>> You can get the CA certificate from the IP of your RHEV/oVirt instance,
>> wget https://ovirt.example.com/ca.crt and then pass this to remote-viewer
>> using --spice-ca-file=ca.crt. You should also check if the .vv file
>> defines
>> a host subject, and if so, pass it with --spice-host-subject.
>>
>> Christophe
>>
>
>
>
> --
> RHCE#805007969328369
>



-- 
RHCE#805007969328369
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