Yes sir, you are right. The ping does not work. I have successfully installed
PCP in another node, say B, which can poll node A. But node A can not poll node
B. That means some network services in node B is not open. But I can still use
ssh and sftp to connect the two nodes. I am not sure what service it is to
accept PCP connection request.
Thank you very much for your help. I am really grateful.
Best regards.
Jie Xu
Quoting Kevin Wang <kjw@xxxxxxxxxxxxx>:
> From Jie Xu
> > The log says no route to the host, connection refused.
> > eg. From host haoscar, type following command:
> > #pminfo -h oscarnode1 kernel
>
> If you're getting a 'no route to host' error, that typically means you
> can't ping the host either.
>
> connection refused typically means that the pmcd isn't listening on
> the network.
>
> You can verify that it is listening on the network (on the server half)
> with "netstat -na | grep LISTEN | grep :4321 " where port 4321 is the
> default pmcd port number.
>
> - Kevin
>
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