Mock Event Generator¶
The Mock Event Generator (MEG) is a tool that allows you to re-upload past GW events to a given GraceDB instance.
Installation¶
We provide a simple Helm chart to install MEG on your Kubernetes cluster. The chart allows the following configuraion parameters:
| Key | Description | Type | Default |
|---|---|---|---|
meg.storageClassName |
Storage class name for persistent storage. | string | "standard" |
meg.image |
Docker image and tag. | string | "containers.ligo.org/emfollow/mock-event-generator:1.4.14" |
meg.gracedb.caSecret |
Name of the Secret containing the CA certificate of your local graceDB instance. | string | "gracedb-ca" |
meg.gracedb.hostAliases |
Hostname/IP mapping for GraceDB. | list | - ip: 10.100.100.10 hostnames: - gracedb.default.svc.cluster.local |
To install the chart:
Event generation¶
In order to use MEG, enter the meg-0 Pod and get a proxy certificate to interact with your GraceDB instance:
Please refer to the MEG documentation for more information on how to replay events. We provide only some useful example here.
Create single events¶
In order to re-crate all G-events belonging to a given Superevent present in the production GraceDB instance, run the following command:
where<graceDB-server-name> is, in the case of the LDAS fluxuser machines:
or, in all other cases:
In the minikube case, a tunnel should be opened on a separate teminal if you did not do it already:
The meg create command should give you a similar output:
2025-01-23 08:43:59 INFO Replay of S240428dr using provided gps time 1421657057.556796 (now()=1421657057.57132)
2025-01-23 08:43:59 INFO The uploads to GraceDB will take 83.94s, like the original schedule. (full 85.94s)
2025-01-23 08:43:59 INFO G-event G478660 with delay of 83.94s (83.94)
2025-01-23 08:43:59 INFO G-event G478659 with delay of 78.65s (78.65)
2025-01-23 08:43:59 INFO G-event G478658 with delay of 22.71s (22.71)
2025-01-23 08:43:59 INFO G-event G478657 with delay of 21.72s (21.72)
2025-01-23 08:43:59 INFO G-event G478656 with delay of 13.56s (13.56)
2025-01-23 08:43:59 INFO G-event G478655 with delay of 12.70s (12.70)
2025-01-23 08:44:12 INFO Created G478655 -> G0346 gstlal CBC AllSky 1421657057.557223
2025-01-23 08:44:13 INFO Created G478656 -> G0347 gstlal CBC AllSky 1421657057.557337
2025-01-23 08:44:21 INFO Created G478657 -> G0348 gstlal CBC AllSky 1421657057.557337
2025-01-23 08:44:21 INFO Uploaded file for event G0347: gstlal.p_astro.json,0
2025-01-23 08:44:21 INFO Written label for event G0347: PASTRO_READY
2025-01-23 08:44:22 INFO Created G478658 -> G0349 gstlal CBC AllSky 1421657057.557223
2025-01-23 08:44:22 INFO Uploaded file for event G0348: gstlal.p_astro.json,0
2025-01-23 08:44:22 INFO Written label for event G0348: PASTRO_READY
2025-01-23 08:44:32 INFO Uploaded file for event G0346: gstlal.p_astro.json,0
2025-01-23 08:44:32 INFO Written label for event G0346: PASTRO_READY
2025-01-23 08:44:33 INFO Uploaded file for event G0349: gstlal.p_astro.json,0
2025-01-23 08:44:33 INFO Written label for event G0349: PASTRO_READY
2025-01-23 08:45:18 INFO Created G478659 -> G0350 gstlal CBC AllSky 1421657057.556796
2025-01-23 08:45:22 INFO Uploaded file for event G0350: gstlal.p_astro.json,0
2025-01-23 08:45:22 INFO Written label for event G0350: PASTRO_READY
2025-01-23 08:45:24 INFO Created G478660 -> G0351 gstlal CBC AllSky 1421657057.556796
2025-01-23 08:45:26 INFO Uploaded file for event G0351: gstlal.p_astro.json,0
2025-01-23 08:45:26 INFO Written label for event G0351: PASTRO_READY