I have a patch that basically did what OP wanted - allows client to pass more detailed information to server for client tracking. It's a useful feature, for debugging and in future, for ZK to support multi-tenancy and enforced quota. I'll try upstream that patch via https://issues.apache.org/jira/browse/ZOOKEEPER-3147.
On Wed, Sep 12, 2018 at 3:10 AM, Shawn Heisey <apa...@elyograg.org> wrote: > On 9/12/2018 2:33 AM, wangyongqiang0...@163.com wrote: > >> from zk log, i can get the ip and port, i think if zk can print the >> process info with the ip and port , will help us in some cases >> > > What precisely are you after? A java program can typically report what > PID its process has, but I don't know that any other process information is > available. I have not checked to see whether ZK logs the PID it's using at > any point. Usually such information is logged at startup (if it is ever > logged at all) and not anywhere else. > > With the port number, you can use a program like lsof or netstat to > determine the pid, and I think this works on both the client and server > side. Here's an example of that for another Java program. This isn't > zookeeper, but the same thing will work for ZK too. > > root@smeagol:~# lsof -Pn -i:45499 > COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME > java 8713 elyograg 35u IPv6 95610 0t0 TCP 127.0.0.1:45499 > (LISTEN) > java 8713 elyograg 62u IPv6 6442866 0t0 TCP 127.0.0.1:52686-> > 127.0.0.1:45499 (CLOSE_WAIT) > java 8713 elyograg 67u IPv6 6443911 0t0 TCP 127.0.0.1:52792-> > 127.0.0.1:45499 (CLOSE_WAIT) > java 8713 elyograg 78u IPv6 6446143 0t0 TCP 127.0.0.1:52814-> > 127.0.0.1:45499 (ESTABLISHED) > java 8713 elyograg 83u IPv6 6444628 0t0 TCP 127.0.0.1:45499-> > 127.0.0.1:52814 (ESTABLISHED) > java 8713 elyograg 84u IPv6 6443524 0t0 TCP 127.0.0.1:52710-> > 127.0.0.1:45499 (CLOSE_WAIT) > java 8713 elyograg 85u IPv6 6442460 0t0 TCP 127.0.0.1:52360-> > 127.0.0.1:45499 (CLOSE_WAIT) > java 8713 elyograg 87u IPv6 6445101 0t0 TCP 127.0.0.1:52766-> > 127.0.0.1:45499 (CLOSE_WAIT) > java 8713 elyograg 113u IPv6 6443962 0t0 TCP 127.0.0.1:52844-> > 127.0.0.1:45499 (ESTABLISHED) > java 8713 elyograg 119u IPv6 6444645 0t0 TCP 127.0.0.1:45499-> > 127.0.0.1:52844 (ESTABLISHED) > java 8713 elyograg 200u IPv6 6441819 0t0 TCP 127.0.0.1:52656-> > 127.0.0.1:45499 (CLOSE_WAIT) > > The -Pn parameters instruct lsof to not translate port numbers or IP > addresses to names. I do this to make the lsof program run faster. > > Thanks, > Shawn > >
