Hoi, Also worth noting, several sockets are created in /run/vpp/* notably the API socket /run/vpp/api.sock - the second invocation of "vpp" may have overwritten the socket with a new one, rendering the existing first invocation of "vpp" unusable. As Klement points out, you can run multiple instances of VPP, but make sure they run in their own namespace so that they don't overwrite each others shared memory and stats segments, and they don't overwrite each others sockets.
groet, Pim On Wed, Dec 14, 2022 at 1:06 PM Klement Sekera <klem...@graphiant.com> wrote: > Hi, > > if you have two vpp instances running with same shm prefix, conflicts are > to be expected. It’s possible that the second instance mangled file system > entries for the first one. When running more than one vpp instance, you > need to ensure that every one of those has a unique shared memory prefix. > You can take a look at how the test framework does this. > > Regards, > Klement > > > On 12 Dec 2022, at 16:59, Chinmaya Aggarwal via lists.fd.io > <chinmaya.agarwal=hsc....@lists.fd.io> wrote: > > > > Hi, > > > > We have a main VPP process running and we have IPIP tunnels configured > in VPP which we try to fetch using VAPI API calls. It works fine in normal > scenarios but when we by mistake executed the command "vpp" from linux > command line, we saw that an additional VPP daemon started running and also > that VAPI API call is not able to fetch IPIP tunnel data anymore. On > killing this daemon manually, we observed that VAPI connections could not > be established anymore and VPP's main process also got into a bad state. > Restarting VPP fixed the issue and we were able to fetch IPIP tunnel data > through VAPI APIs. > > > > What is the purpose of this command "vpp" and is it a valid use case to > run multiple vpp daemons? Also, how can we restrict the additional daemon > from starting if VPP's main process is already running? > > > > Thanks and Regards, > > Chinmaya Agarwal. > > > > > > > > > -- Pim van Pelt <p...@ipng.nl> PBVP1-RIPE - http://www.ipng.nl/
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