Heath, > We have intermittently been getting this error in /var/adm/messages. First off, if the messages are in file "/var/adm/messages", then it means that LDM logging isn't set-up correctly. The LDM system should log to its own log file and not to the system log file. > Can you please tell me what it means, and if we need to do anything? > Thanks. > > Jan 23 23:16:28 Titan.HPC.MsState.Edu idd.cise-nsf.gov ERROR: > readtcp(): s > elect() timeout on socket 5 > Jan 23 23:16:28 Titan.HPC.MsState.Edu idd.cise-nsf.gov ERROR: > one_svc_run( > ): RPC layer closed connection > Jan 23 23:16:28 Titan.HPC.MsState.Edu idd.cise-nsf.gov ERROR: > Disconnectin > g due to LDM failure; Connection to upstream LDM closed > Jan 23 23:26:18 Titan.HPC.MsState.Edu idd.cise-nsf.gov ERROR: > Disconnectin > g due to LDM failure; Upstream LDM died The messages mean that a downstream LDM process on Titan couldn't read anything from its TCP connection to an upstream LDM on idd.cise-nsf before the timeout timer went off. This was likely due to network congestion. Don't worry, the downstream LDM will re-establish the connection and continue from where it left off. Regards, Steve Emmerson Ticket Details =================== Ticket ID: RJV-550417 Department: Support LDM Priority: Normal Status: Closed
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