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Hi Sen, re: > I did restart ldm several times yesterday. and now just followed your > instruction to restart again. OK, but it seems that this is not the problem. I am seeing messages in the LDM log file on hrrr.unidata.ucar.edu that indicate it is terminating your REQUEST for the FSL2 feed: 2016-02-25 11:57:29.431-07 titan.met.sjsu.edu(feed)[13097] NOTE: Starting Up(6.11.4/6): 20160225175723.145 TS_ENDT {{FSL2, ".*"}}, SIG=NONE, Primary 2016-02-25 11:57:29.431-07 titan.met.sjsu.edu(feed)[13097] NOTE: topo: titan.met.sjsu.edu {{FSL2, (.*)}} 2016-02-25 11:57:40.077-07 titan.met.sjsu.edu(feed)[13098] NOTE: [uldb.c:1346] Terminated obsolete upstream LDM (addr=130.65.97.16, pid=13097, vers=6, type=feeder, mode=primary, sub=(20160225175723.145 TS_ENDT {{FSL2, ".*"}})) The LDM typically does this when there are overlapping REQUESTs from the same downstream, but this should not be the situation in your case as you only have one REQUEST to hrrr.unidata.ucar.edu. I will get together with Steve Emmerson to discuss what we are seeing in hopes that he can shed light on what is happening and what needs to be done to correct the situation. I will get back in touch with you after talking to Steve. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: OQA-104787 Department: Support IDD Priority: Normal Status: Closed