The following errors were appearing in the server log. Apart from some fairly critical things not working, the docbase seemed to be ok.
The problem was that something had got corrupted in the TCIP/IP stack/ network interface. It was not required to reinstall the tcpip software.
[DM_SESSION_E_RPC_ERROR]error: “Server communication failure”
java.nio.channels.UnresolvedAddressException
Thu Oct 18 23:47:00 2007 [FATAL ERROR] [AGENTEXEC 4568] Detected during program initialization: Command Failed: connect,xxxxxx.xxxxxx,xxxxxx.xxxxxx,”,,,try_native_first, status: 0, with error message .
The dm_agent_exec utility is exiting due to a fatal error.
Thu Oct 18 23:47:53 2007 025000 [DM_SESSION_W_RESTART_AGENT_EXEC]warning: “The agent exec program has stopped running. It will be restarted.”
[DM_SESSION_E_RPC_ERROR]error: “Server communication failure”
java.nio.channels.UnresolvedAddressException
IAPI32 and IDQL32 would not run and dmqdocbroker -c getdocbasemap would not run either.
Taking it to the next level I determined that while remote servers could be pinged the local host could not. Once that was fixed it was all ok again.
Solution to the IP probem:
http://kevinyeandel.wordpress.com/2007/11/22/cant-ping-own-pc/