Greg, Can we have an account on the machine? mike > Mike, > ingest is running Red Hat Linux. cron was an early suspect but > nothing is running in any cron jobs at :45. We just keep going back to > the fact that if we run "ldmadmin stop" the problem stops. The fact that > no error messages appear in either the system logs or the ldm logs makes > it very hard to trace the source of the problem. Unfortunately we can't > systematically shut down ldm activities to try and isolate the problem > which is what I'd like to try next. We are supporting 2 projects for the > next month or so and we are feeding some data downstream to others > through ldm. > > Greg > > Unidata LDM Support wrote: > > Greg, > > > > What type of OS is running on ingest? My first suspect for a problem > > occurring at :45 after is cron. Assuming linux, look in /etc/*cron*, > > probably mrtg or the like... > > > > mike > > > >> Greg, > >> > >>> Our problems continue with LDM and our server hanging/ Today the > >>> load reached 6.o and ssh logins weren't working. ldm services had the > >>> top 3 in the "TOP" command list. > >> What was the CPU usage of the LDM processes? > >> > >>> We rebooted the machine. For odd > >>> reasons, ldm is also not auto restarting when the machine comes up - I > >>> had to delete the ldmd.pid file and the queue before I could restart. > >> That makes sense. If the file "ldmd.pid" exists, then another LDM > >> is likely running. An "ldmadmin clean" removes this file. > >> > >>> The last item in the ldmd.log file before the problem was: > >>> > >>> Oct 22 22:17:17 ingest usgodae3.fnmoc.navy.mil WARN: Future > >>> product from "usgodae3.fnmoc.navy.mil". Fix local or ingest clock. > >>> 73413 20071022221801.297 FNMOC 000 > >>> US058GMET-GR1mdl.0058_0240_00000F0OF2007102218_0105_000100-000000wnd_ucmp > >> Either your clock is slow or the clock on usgodae3 is fast, or both. > >> In any case, they should be fixed. > >> > >>> Any ideas how ldm could get so busy? The problem occurred at ~1645 this > >>> afternoon. When this problem occurs it always seem to be at :45. . . > >> The only thing I can think of is that a bunch of data arrives at that > >> time. Is a bunch of data being created on usgodae3 at that time? > >> > >>> Greg > > >> Regards, > >> Steve Emmerson > > > > > > Ticket Details > > =================== > > Ticket ID: XDI-772585 > > Department: Support LDM > > Priority: Normal > > Status: Closed > > > > > -- > > ~~N~A~T~I~O~N~A~L~~C~E~N~T~E~R~~F~O~R~~A~T~M~O~S~.~~R~E~S~E~A~R~C~H > Greg Stossmeister e-mail: address@hidden > NCAR/EOL phone: (303)497-8692 > P.O. Box 3000 web: http://www.eol.ucar.edu > Boulder, CO 80307-3000 > ~~~~~~~~E~A~R~T~H~~~O~B~S~E~R~V~I~N~G~~~L~A~B~O~R~A~T~O~R~Y~~~~~~~~ > > Ticket Details =================== Ticket ID: XDI-772585 Department: Support LDM Priority: Normal Status: Closed
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