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 * prepare configuration file
  * when we got the alert, the following shell script will run. (Note that this shell script can't use option.)
  * you can see the details of shell script at `/users/yuzu/work/lvalert` in the Kamioka workstation.
 
 {{{
$ cat my_listen.ini
[test_k1det]
executable = ./run_test_k1det.sh
}}}
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  * Although test1.txt has gps_time, test2.txt has no gps_time.
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 {{{
$ lvalert_listen -s lvalert-playground.cgca.uwm.edu -c my_listen.ini -r listener1 &
 }}}
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== Links ==
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11522|Tagoshi-san's note]]

== Related links ==
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 * [[https://lscsoft.docs.ligo.org/lvalert/guide.html|LVAlert Users Guide]]  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11522|Tagoshi-san's note]]
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 * [[https://lscsoft.docs.ligo.org/lvalert/index.html]]  * [[https://lscsoft.docs.ligo.org/lvalert/index.html|document of lvalert (not completed)]]

Introduction

  • LValert is The LIGO-Virgo Alert System (LVAlert)

    • a prototype notification service built on the xmpp (jabber) protocol and the pubsub extension.
    • It provides a basic notification tool which allows multiple producers and consumers of notifications.

Install

Setting in advance

  • visit https://lvalert-test.cgca.uwm.edu and activate your account.

  • prepare $HOME/.netrc

    • albert.einstein should be your KAGRA account.
    • PASSWORD should be the password you set at Account Activation site.

    $ echo 'machine lvalert.cgca.uwm.edu login albert.einstein password PASSWORD' >> ~/.netrc
    $ echo 'machine lvalert-playground.cgca.uwm.edu login albert.einstein password PASSWORD' >> ~/.netrc
    $ echo 'machine lvalert-test.cgca.uwm.edu login albert.einstein password PASSWORD' >> ~/.netrc
    $ chmod 0600 ~/.netrc

Usage of `lvalert_admin`

  • get a list of existing nodes
    $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --get-nodes
  • create a test node
    $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --create --node test_k1det
    Creating node test_k1det
    Successfully completed operation
  • subscribe a node
    $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --subscribe --node test_k1det
    Successfully subscribed to node test_k1det
  • remove a note
    $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --delete --node test_k1det
  • check current subscriptions
    $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --subscriptions
  • unsubscribe
    • This works only a node which you created.
      $ lvalert_admin --username hirotaka.yuzurihara -s lvalert-playground.cgca.uwm.edu --node "tagoshi-testnode"

Usage of `lvalert_listen` and `lvalert_send`

  • launch the lvalert_listern
    • this should run in the background
    % lvalert_listen -s lvalert-playground.cgca.uwm.edu -c my_listen.ini -r listener1 &
  • prepare the dummy alert
    • the real alert will be sent as JSON format. (But, I don't know the actual keys.)
    $ cat test1.txt
    {"uid": "G12345", "alert_type": "new", "far": 1e-8, "gps_time": 1301640384}
    
    $ cat test2.txt
    {"uid": "G12345", "alert_type": "new", "far": 1e-8}
  • prepare configuration file
    • when we got the alert, the following shell script will run. (Note that this shell script can't use option.)
    • you can see the details of shell script at /users/yuzu/work/lvalert in the Kamioka workstation.

    $ cat my_listen.ini
    [test_k1det]
    executable = ./run_test_k1det.sh
  • send the test alert
    • Although test1.txt has gps_time, test2.txt has no gps_time.
    $ lvalert_send --username hirotaka.yuzurihara -s lvalert-playground.cgca.uwm.edu -n test_k1det --file test1.txt
    
    $ lvalert_send --username hirotaka.yuzurihara -s lvalert-playground.cgca.uwm.edu -n test_k1det --file test2.txt

KAGRA/Subgroups/DET/LVAlert (last edited 2022-05-26 18:05:01 by HirotakaYuzurihara)