Hi YangXin, Well, I am not sure I understand the latencies I am seeing on yakov for products requested from your test machine: http://www.unidata.ucar.edu/cgi-bin/rtstats/iddstats_nc?EXP+yakov.unidata.ucar.edu In particular, I don't know how to interpret the difference in the volumes of data I am ingesting: http://www.unidata.ucar.edu/cgi-bin/rtstats/iddstats_vol_nc?EXP+yakov.unidata.ucar.edu with what is being show for your TIGGE node: http://www.unidata.ucar.edu/cgi-bin/rtstats/iddstats_vol_nc?EXP+tigge-ldm.cma.gov.cn Does the volume of data being shown on yakov compare favorably with what you are sending? 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: BGR-338705 Department: Support IDD TIGGE Priority: Normal Status: Open