Unanswered: err=-25582 Network connection is broken
I have an Informix Dynamic Server Version 11.70 FC2 running on AIX 6.1 machine and i recently experienced a problem.
The instance was working fine and out of nowhere i could see the following message on Informix log:
"listener-thread: err=-25582: oserr=0: errstr=: Network connection is broken"
The same message appeared for 7 minutes and despite server was On-Line during that time users could not connect to the databases.
Note that this is a Database Server. Users are connecting through a different server - application server.
After the 7 minutes passed the instance return to its previous state and users could connect normally.
Note also that nothing was done in order for the instance to be accessible by the users again. It just came back without any intervention.
there was not much we could do apart from checking the network itself by using a network monitor like wireshark. In this case, a network switch was failing.
Could you still connect to the server by using one of the DBSERVERALIASES, if one exists, preferrably an icpshm connection?
Did ssh, ping, telnet and so on still work normally?
well this is the idea of what we will do in case that this situation re-occurs.
I prepared a script where I do ping, dbaccess both locally from the server and remotely from a different server so when it happens again I will execute this to see what I will get.