This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Hi Gilbert, First, our web server is being worked on this morning, so I am forced to send emails from the support account. No worries for you, but the email headers will be different, and I wanted you to know why... re: Help! I need a more clear picture before being able to proceed!! You responded: >On weather2, I am decoding for both GEMPAK and McIDAS. On weather, I do >not have the disk space, and on weather3, I don't have the processing >speed. I do plan to replace weather2 and weather3 in the not-too-distant >future with Core 2 duo quad PC's with a Q6700 motherboard and 4 GB >of RAM...that should be faster. :-) re: >Does that help? It helps a bit, but it your statement was not definitive enough for me to be able to act with surity. Let's deal with one machine at a time. First up is weather: 1) I was worried that you were wasting processing power on weather by running all ingested data through both ~ldm/etc/pqact.conf and ~ldm/etc/pqact.gempak. To avoid this, I used grep to figure out exactly what feeds you had processing actions for. I then used this list to specify which feeds would be processed by each of the pqact invocations. This should cut down on the CPU you are using on weather. Of course, I restarted the LDM to make the changes take effect. 2) I noticed that no data had been processed through pqact.gempak since May 11. I further noticed that the modification date/time on pqact.gempak was May 11. Since the 'exec' of a pqact to do processing listed in pqact.gempak was NOT commented out in ~ldm/etc/ldmd.conf, I figured that you still want to do some of the processing included in pqact.gempak. Question: do you want to do some of the processing in pqact.gempak? If the answer is yes, then the error I found in pqact.gempak at line 260 must be corrected. (It appears that you failed to comment out a line when editing the file on May 11. Because of this omission no actions beyond line 260 are being processed!) NOTE: if the error in pqact.gempak is fixed, you will resume dual processing of a bunch of image data: UNIWISC (aka MCIDAS), NIMAGE, NNEXRAD, FNEXRAD. So, the first question is if you still want to do some/all of the processing listed in ~ldm/etc/pqact.gempak. - if the answer is yes, exactly which of the processing do you want to do? - if the answer is no, then the 'exec' of the pqact that will use ~ldm/etc/pqact.gempak should be commented out and the LDM restarted. - in either case, the typo in ~ldm/etc/pqact.gempak should be fixed so that if you ever decide to use the file in the future it will be error free. After you review the comments/questions above and make appropriate decisions, I should know enough to adjust the processing being done in the ~ldm/etc/pqact.conf_mcidas[AB] files. Then, I will need to adjust the ADDE dataset definitions to match the locations were image data is being decoded. I should also be able to fixup the scouring of image data to scour the new stuff and remove the old, unused stuff. Cheers, Tom -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.