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Gerry, > Here's the downstream/client representative entry: > > May 24 17:54:42 cl-t021-260cl bigbird.tamu.edu[29229] ERROR: > Disconnecting due to LDM failure; Upstream LDM died > May 24 17:54:46 cl-t021-260cl bigbird.tamu.edu[29229] NOTE: LDM-6 > desired product-class: 20070524165445.942 TS_ENDT {{NNEXRA D, > ".*"},{NONE, "SIG=84d8aff1abcdc834362afa9352d5fed7"}} > May 24 17:54:46 cl-t021-260cl bigbird.tamu.edu[29229] NOTE: Upstream > LDM-6 on bigbird.tamu.edu is willing to be an alternate feeder > May 24 17:54:47 cl-t021-260cl pqact[29226] INFO: 165 > 20070524165449.578 NNEXRAD 53742227 SDUS33 KDTX 241644 /pNMDDTX ! nids/ > May 24 17:54:47 cl-t021-260cl pqact[29226] INFO: file: > -close data/gempak/nexrad/NIDS/DTX/NMD/NMD_20070524 _1644 > May 24 17:55:47 cl-t021-260cl bigbird.tamu.edu[29229] ERROR: > Disconnecting due to LDM failure; Upstream LDM died The above indicates that the downstream LDM couldn't receive any data from the upstream LDM because the upstream LDM died for some unknown reason. > And bigbird, for this host: > > May 24 17:57:50 bigbird rpc.ldmd[31090] NOTE: child 7627 exited with > status 6 There's no log message from the upstream LDM corresponding to the log messages from the downstream LDM. I suspect, however, that the upstream messages would be similar to the above and to the following: > May 24 17:57:51 bigbird ip-72-55-137-133.static.privated[7722] NOTE: > feed or notify failure; COMINGSOON: RPC: Timed out > May 24 17:57:51 bigbird rpc.ldmd[31090] NOTE: child 7722 exited with > status 3 This indicates that the upstream LDM couldn't notify the downstream LDM that a data-product was ready to be sent (the connection is in ALTERNATE mode) because the upstream LDM didn't receive a reply from the downstream LDM in the time allotted by the RPC layer. I suspect that the network between the upstream and downstream LDM-s has insufficient bandwidth or is too congested. Regards, Steve Emmerson Ticket Details =================== Ticket ID: OVS-299210 Department: Support LDM Priority: Normal Status: Closed