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20040720: 20040719: 20040719: sending EXP data to another LDM server
- Subject: 20040720: 20040719: 20040719: sending EXP data to another LDM server
- Date: Wed, 21 Jul 2004 10:42:35 -0600
Ying,
When you start notifyme, it asks for information from the current time.
Since you had already inserted the data into your queue, you would want to
use the "-o" option to tell notifyme to start at an offset time, such as:
notifyme -vxl - -f EXP -o 3600
The -o 3600 would tell notifyme to ask for information on products since 2600
seconds ago.
For placing the data into the upstream queue, you could either
use a script as you mention, or you could use the LDM library if you have
access to the code that reads the data from your satellite feed.
At the point where you have a file to write to disk now, you
could use the LDM library calls to calculate the MD5 checksum and insert
the product into the LDM queue from within your program that reads the data from
your dish.
Pqing is an example of a program that can read from a stream and insert the
data
into the queue. If you choose to use the LDM library from within your
program, let us now and we will provide you with the sequence of
library cals to insert the product into the queue.
Steve Chiswell
Unidata User Support
>From: address@hidden
>Organization: UCAR/Unidata
>Keywords: 200407202006.i6KK63aW006462
>Steve,
>
>I used pqinsert for three files
>[ldm@unidata ~/bin]$ ./pqinsert -v -l - -f EXP ~/data/doqq/38077g35.sdw
>pqinsert: 186 20040720193223.205 EXP 000 /usr/local/ldm/data/doqq/38
> 077g35.sdw
>[ldm@unidata ~/bin]$ ./pqinsert -v -l - -f EXP ~/data/doqq/38077g35.sid
>pqinsert: 7226077 20040720193229.998 EXP 000 /usr/local/ldm/data/doqq/38
> 077g35.sid
>[ldm@unidata ~/bin]$ ./pqinsert -v -l - -f EXP ~/data/doqq/38077g35.hdr
>pqinsert: 18696 20040720193237.931 EXP 000 /usr/local/ldm/data/doqq/38
> 077g35.hdr
>
>but when I used notifyme
>
>[ldm@unidata ~/bin]$ ./notifyme -vxl- -f EXP -h localhost
>Jul 20 19:33:06 notifyme[388]: Starting Up: localhost: 20040720193306.642 TS_E
> NDT {{EXP, ".*"}}
>Jul 20 19:33:06 notifyme[388]: Connected to upstream LDM-5
> NOTIFYME(localhost) returns OK
>Jul 20 19:33:06 notifyme[388]: NOTIFYME(localhost): OK
>
>I can not see the info about the data product. Are they in the product queue?
>
>Also I want to know how does upstream site do when they get new data from i.e.
> antenna. They have some scripts to insert these data to product queue automa
> tically so that downstream sites are able to get the real time data, right? C
> an I get the script, if there is? Coz we want to share some satellite data wh
> ich is obtained directly from antenna.
>
>Thanks!
>
>Ying
>
>
>----- Original Message -----
>From: Unidata Support <address@hidden>
>Date: Monday, July 19, 2004 6:45 pm
>Subject: 20040719: 20040719: sending EXP data to another LDM server
>
>>
>> Ying,
>>
>> Sorry, my typo. Don't use pqing (which is meant to read WMO format
>> bulletins).Instead, use pqinsert which will insert a file into the
>> queue.
>>
>> Steve Chiswell
>> Unidata User Support
>>
>>
>>
>>
>>
>>
>> >From: address@hidden
>> >Organization: UCAR/Unidata
>> >Keywords: 200407192318.i6JNIDaW001884
>>
>> >Hi Steve,
>> >
>> >Thanks a lot !
>> >I store the files38077g35.hdr, 38077g35.sdw, 38077g35.sid at
>> ~/data/doqq/, an
>> > d use the pqing as below
>> >for file 38077g35.sid
>> >[ldm@unidata doqq]$ ~/bin/pqing -v -l - -f EXP
>> ~/data/doqq/38077g35.sid>It returns:
>> >Jul 19 22:32:32 pqing[31751]: Starting Up
>> >Jul 19 22:32:32 pqing[31751]: FILE
>> "/usr/local/ldm/data/doqq/38077g35.sid">Jul 19 22:32:32
>> pqing[31751]: Lone SOH error 3
>> >Jul 19 22:32:32 pqing[31751]: scan_wmo: length 5 too short
>> >Jul 19 22:32:32 pqing[31751]: Lone ETX error
>> 108
>> > -01 X Q00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 33
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 25
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 5
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 5
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 2
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 3
>> >Jul 19 22:32:32 pqing[31751]: scan_wmo: length 3 too short
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 2
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 7
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 5
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 6
>> > -01 00 192232
>> >Jul 19 22:32:32 pqing[31751]: scan_wmo: length 16 too short
>> >Jul 19 22:32:32 pqing[31751]: Lone SOH error
>> 3
>> >Jul 19 22:32:32 pqing[31751]: scan_wmo: length 14 too short
>> >...
>> >...
>> >
>> >for file 38077g35.hdr, it returns
>> >[ldm@unidata doqq]$ ~/bin/pqing -v -l - -f EXP
>> ~/data/doqq/38077g35.hdr>Jul 19 22:47:42 pqing[31754]: Starting Up
>> >Jul 19 22:47:42 pqing[31754]: FILE
>> "/usr/local/ldm/data/doqq/38077g35.hdr">Jul 19 22:47:42
>> pqing[31754]: Expanding input buffer size to 32768
>> >Jul 19 22:47:42 pqing[31754]: Exiting
>> >Jul 19 22:47:42 pqing[31754]: Queue usage (bytes):1048576000
>> >Jul 19 22:47:42 pqing[31754]: (nregions): 182025
>> >Jul 19 22:47:42 pqing[31754]: Duplicates rejected: 0
>> >Jul 19 22:47:42 pqing[31754]: WMO Messages seen: 0
>> >Jul 19 22:47:42 pqing[31754]: SOH/ETX missing : 0
>> >Jul 19 22:47:42 pqing[31754]: parity/chksum err: 0
>> >Jul 19 22:47:42 pqing[31754]: WMO format errors: 0
>> >Jul 19 22:47:42 pqing[31754]: FILE Bytes read: 18696
>> >
>> >for file 38077g35.swd, similar to the previous result.
>> >
>> >when I type notifyme, it is:
>> >[ldm@unidata doqq]$ ~/bin/notifyme -vxl- -f EXP -h
>> unidata.scs.gmu.edu>Jul 19 22:48:42 notifyme[31755]: Starting Up:
>> unidata.scs.gmu.edu: 20040719224
>> > 842.487 TS_ENDT {{EXP, ".*"}}
>> >Jul 19 22:48:42 notifyme[31755]: Connected to upstream LDM-5
>> > NOTIFYME(unidata.scs.gmu.edu) returns OK
>> >Jul 19 22:48:42 notifyme[31755]: NOTIFYME(unidata.scs.gmu.edu): OK
>> >
>> >Did I successfully pqing the files? Anything wrong?
>> >
>> >Another question is, does it mean everytime I get a new file
>> from i.e. antenn
>> > a, I need to pqing it to product queue manually? Is there any
>> way to insert
>> > it automatically once I put it under a certain folder?
>> >
>> >Sorry for so many questions and thank you very much for you help!
>> >
>> >Ying
>> >
>> >
>> >
>> >
>> >----- Original Message -----
>> >From: Unidata Support <address@hidden>
>> >Date: Monday, July 19, 2004 2:37 pm
>> >Subject: 20040719: sending EXP data to another LDM server
>> >
>> >>
>> >> Ying,
>> >>
>> >> You can use a single "pqinsert" command to insetyour 3 files in
>> your
>> >> list.
>> >> The LDM product name of these files will be file name (uless you
>> >> specify anothr name). If you specify a full path to the files,
>> >> then that would be part of the name as well. You can use the
>> >> notifyme command to seee that the files are in your local queue.
>> >>
>> >> To receive the files at another LDM, you should:
>> >>
>> >> 1) Makefile sure your ~ldm/etc/ldmd.conf file has an allow line
>> >> for the other LDM host. Ensure that EXP is part of the feedtype
>> >> lit that you are allowing that host to receive.
>> >>
>> >> 2) On the other LDM, make sure the ~ldm/etc/ldmd.conf
>> >> has a "request" line for the EXP feedtype from your ldm.
>> >> You can either use the ".*" pattern to match all EXP products,
>> >> or a pattern of file names to request.
>> >>
>> >> 3) On this LDM, you can have pqact.conf actions to automatically
>> >> process the files as they arrive.
>> >>
>> >> Thats it.....
>> >>
>> >>
>> >> Steve Chiswell
>> >> Unidata User Support
>> >>
>> >>
>> >> >From: address@hidden
>> >> >Organization: UCAR/Unidata
>> >> >Keywords: 200407191635.i6JGZ3aW023824
>> >>
>> >> >Hello,
>> >> >
>> >> >I've got LDM running well and am trying to send our own data
>> >> (DOQQ) to another
>> >> > LDM server as EXP data. But I'm not sure about the whole
>> >> process.
>> >> >For example, the data is in three related files:
>> >> >38077g35.hdr,
>> >> >38077g35.sdw,
>> >> >38077g35.sid
>> >> >Do I need to write three "pqinsert" commands to insert them to
>> >> product queue?
>> >> >
>> >> >How can I make the data automatically arrive at another LDM
>> >> server once I put
>> >> > new data into corresponding directory on my server? Anything
>> I
>> >> need to add in
>> >> > pqact.conf, etc?
>> >> >
>> >> >Thank you in advance for your help!
>> >> >
>> >> >Ying
>> >> >
>> >> >
>> >> >
>> >> >
>> >> --
>> >>
>> ****************************************************************************
>> >> Unidata User Support UCAR
>> >> (303)497-8643
>> >> address@hidden
>> >> ----------------------------------------------------------------
>> ---
>> >> Unidata WWW Service
>> >> ----------------------------------------------------------------
>> ---
>> >> NOTE: All email exchanges with Unidata User Support are
>> recorded
>> >> in the
>> >> Unidata inquiry tracking system and then made publically 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.
>> >>
>> >
>> --
>> ****************************************************************************
>> Unidata User Support UCAR
>> (303)497-8643
>> address@hidden
>> -------------------------------------------------------------------
>> Unidata WWW Service
>> -------------------------------------------------------------------
>> NOTE: All email exchanges with Unidata User Support are recorded
>> in the
>> Unidata inquiry tracking system and then made publically 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.
>>
>
--
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publically available
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available in this way, you must let us know in each email you send to us.