Hi Moshe this is not possible as the problem is that tcpdump killed with -9 leaves the queue in an inconsistent state (same happens if it crashes)
Alfredo > On 18 Jul 2016, at 15:30, Moshe Danielli <[email protected]> wrote: > > Got it - Thanks ! > > > A followup question - is there an option to manually release the queue, in > case kill -9 was indeed used ? > > Thanks again, > > Moshe > > > On Jul 18, 2016 14:44, Alfredo Cardigliano wrote: > Hi Moshe > killing tcpdump with -9 prevents it from releasing the queue correctly, thus > you are no more able to open it. This is an expected behaviour in zero-copy > mode. > > Alfredo > > > On 18 Jul 2016, at 13:13, Moshe Danielli wrote: > > > > > > Hello Guys, > > > > I've been experiencing a problem where I execute the following sequence of > > commands: > > > > 1. nohup tcpdump -i zc:99@0 & > > 2. kill -9 tcpdump_pid > > 3. tcpdump -i zc:99@0 -> this command yields the following error: "tcpdump: > > zc:99@0: No such device exists" > > > > It's important to note that, killing tcpdump, without using the KILL signal > > (hitting CTRL-C for example or just using: "kill tcpdump_pid") will let me > > reuse that cluster node. > > > > I'm curious as to why that's the current behavior. > > > > Thanks in advance > > > > > > _______________________________________________ > > Ntop-misc mailing list > > [email protected] > > http://listgateway.unipi.it/mailman/listinfo/ntop-misc > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc > > > > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc
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