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| * [[https://git.ligo.org/lscsoft/lvalert/-/tree/master|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. |
* The LIGO-Virgo Alert System (LVAlert) [[https://git.ligo.org/lscsoft/igwn-alert|igwn-alert]] * The International Gravitational Wave Network Alert System (igwn-alert) is a notification service built on the Apache Kafka protocol and the pubsub extension. * It is a higher-level modification of SCIMMA's hop-client to streamline receiving and responding to alerts from GraceDB. * This package replaces the legacy LIGO LVAlert XMPP-based alert system. * The API are compatible with Python 3. |
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| * We can't install lvalert by [[https://computing.docs.ligo.org/conda/environments/igwn-py37/|igwn]] on conda environment. (see [[https://git.ligo.org/lscsoft/lvalert/-/issues/19|lvalert_admin broken on both conda igwn-py2 and igwn-py37 environments]]) * because lvalert depends on legacy package (`pyxmpp`) * To install lvalert on python2, {{{ sudo apt install python-ligo-lvalert }}} |
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| * visit [[https://lvalert-test.cgca.uwm.edu]] and activate your account. | |
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| * prepare `$HOME/.netrc` * albert.einstein should be your KAGRA account. * `PASSWORD` should be the password you set at Account Activation site. |
== Usage of lvalert_admin == |
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| {{{ $ 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 }}} |
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| == Usage of `lvalert_admin` == | == Usage of lvalert_listen and lvalert_send == |
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| * get a list of existing nodes {{{ $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --get-nodes }}} |
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| * create a test node {{{ $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --create --node test_k1det Creating node test_k1det Successfully completed operation }}} |
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| * subscribe a node {{{ $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --subscribe --node test_k1det Successfully subscribed to node test_k1det }}} |
== Related links == |
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| * remove a note {{{ $ lvalert_admin -s lvalert-playground.cgca.uwm.edu --delete --node test_k1det }}} |
* [[KAGRA/Subgroups/DET/LVAlert_python2 |LVAlert instruction for python2]] |
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| * 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} }}} * send the test alert {{{ $ 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 }}} {{{ $ lvalert_listen -s lvalert-playground.cgca.uwm.edu -c my_listen.ini -r listener1 & }}} == Links == * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11522|Tagoshi-san's note]] |
* [[https://gracedb.ligo.org/documentation/responding_to_lvalert.html|Tutorial GraceDB]] |
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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
The LIGO-Virgo Alert System (LVAlert) igwn-alert
- The International Gravitational Wave Network Alert System (igwn-alert) is a notification service built on the Apache Kafka protocol and the pubsub extension.
- It is a higher-level modification of SCIMMA's hop-client to streamline receiving and responding to alerts from GraceDB.
- This package replaces the legacy LIGO LVAlert XMPP-based alert system.
- The API are compatible with Python 3.
Install
Setting in advance
Usage of lvalert_admin
Usage of lvalert_listen and lvalert_send