Hi,

Good news: cannot reproduce the problem: booted new ubuntu vm, installed frr from source, was able to run topotests without problem. I do not know what was the underlying cause of my yesterday's problem.

Thanks for your help,

Aleksey


On Mon, Dec 2, 2019 at 10:35 PM Aleksey Romanov <aleksey@voltanet.io> wrote:
Hi Donald,

Mark helped me using our local slack.

I could not be 100% sure yet until I repeat all the steps but here is the problem as I understand it today.

I built and installed frr for ubuntu 18.04 according to http://docs.frrouting.org/projects/dev-guide/en/latest/building-frr-for-ubuntu1804.html, in this case shared libraries are placed in /usr/lib/frr. It creates some subtle problem with vtysh when running topotests (and topotest only). It was resolved by adding file with /usr/lib/frr path to /etc/ld.so.conf.d and running ldconfig.

The topotest instructions http://docs.frrouting.org/projects/dev-guide/en/latest/topotests.html suggest slightly different set of configure options and I guess they do not hit this problem because of different shared libs placement - but as I said I did not try it yet.

Thanks,

Aleksey




On Mon, Dec 2, 2019 at 8:41 PM Donald Sharp <sharpd@cumulusnetworks.com> wrote:
Aleksey -

Debugging topotests over email might end up being quite fun.  I would
suggest logging into the FRRouting slack and opening a discussion
there and we can start talking through what is going wrong.  I am
suggesting this because when something goes wrong I end up having to
look in a bunch of different places to understand the test and to fix
it.

donald

On Mon, Dec 2, 2019 at 11:07 AM Aleksey Romanov <aleksey@voltanet.io> wrote:
>
> Hi,
>
> 1. I had built frr from recent sources on ubuntu-18.04.
> 2. Made sure it starts and ospfd when configured logs events in the specified log and interacts with master agentx.
> 3. Reset configurations to default and stopped frr.
> 4. Followed instructions to run topotests
>
> http://docs.frrouting.org/projects/dev-guide/en/latest/topotests.html
>
> sudo py.test -s -v --tb=no > /var/tmp/topo_test_out 2>&1
>
> It seems that every test is either failed or skipped. Among other things I noticed vtysh errors that seems quite unexpected.
>
> 2019-12-02 10:49:14,139 WARNING: vtysh_cmd: failed to convert json output
> 2019-12-02 10:49:14,642 WARNING: vtysh_cmd: failed to convert json output
> 2019-12-02 10:49:15,146 WARNING: vtysh_cmd: failed to convert json output
> 2019-12-02 10:49:15,651 WARNING: vtysh_cmd: failed to convert json output
>
> See attached file for more.
>
> Thanks,
>
> Aleksey
>
>
>
>
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