> On 9 Jan 2020, at 16:50, Paul Vinciguerra <pvi...@vinciconsulting.com> wrote: > > > Is there any objection to adding a tls listener and an instance to the stats > client to vpp_papi?
Use grpc as transport? Cheers, Ole > >>> On Jan 9, 2020, at 6:45 AM, Vratko Polak -X (vrpolak - PANTHEON >>> TECHNOLOGIES at Cisco) via Lists.Fd.Io <vrpolak=cisco....@lists.fd.io> >>> wrote: >>> >> >> CSIT uses VPP API via socket (tunneled over SSH) for most interactions. >> >> We also read stats for just one (I think) purpose, >> reading runtime stats (/sys/node). >> The way we do that is historical and convoluted, >> for the result see INFO line at [1]. >> >> Looking at the result, the appropriate API way >> would be to use send some _dump message >> and process the _details responses, one per node name. >> >> Vratko. >> >> [1] >> https://logs.fd.io/production/vex-yul-rot-jenkins-1/csit-vpp-perf-verify-master-2n-clx/58/archives/log.html.gz#s1-s1-s1-s1-s1-t1-k2-k9-k1-k1-k4-k1 >> >> From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Christian Hopps >> Sent: Thursday, January 9, 2020 12:05 PM >> To: Ole Troan <otr...@employees.org> >> Cc: Christian Hopps <cho...@chopps.org>; vpp-dev <vpp-dev@lists.fd.io> >> Subject: Re: [vpp-dev] python api over tcp? >> >> >> >> > On Jan 9, 2020, at 5:44 AM, Ole Troan <otr...@employees.org> wrote: >> > >> > Christian, >> > >> >>> For exporting data out of the stats segment, I believe there is already >> >>> quite a few solutions. >> >>> There's the (naive) prometheus example in the repo, vpp_get_stats, there >> >>> is a Telegraf plugin, a simple gNMI/gRPC plugin. >> >> >> >> Right I've used vpp_get_stats and may run that with ssh and awk. I guess >> >> it just seems odd on first encountering this that the CLI provided the >> >> data, but the binary API didn't. I suppose the view is that exposing the >> >> stats segment in shared memory *is* the binary API. :) >> > >> > What certainly would make sense to do, is to put a wrapper on top of >> > vpp_stats.py that gives you a higher level API of accessing the stats. >> > E.g. a get_interface_counters(). The stat segment also contains the name >> > to interface index mapping (/if/names). >> > Want to have a go? >> >> I'm actually going to use vpp_get_stats (run remotely using ssh) for now. >> I'm using vpp_papi on a single testing server (so it connects to each of the >> VPP /run/vpp/api.sock over ssh forwarded sockets), so it doesn't have access >> to their shared memory segments. >> >> > >> > I am also exploring putting much more information into the stat segment, >> > essentially making it into an operational data store (RFC8342). Don't hold >> > your breath. But any help appreciated. >> >> I will be looking at doing some YANG models later this year, so if the >> timing aligns.. :) >> >> Thanks, >> Chris. >> >> >> > Cheers, >> > Ole >> >> >
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