APEL Deployment
We are changing the accounting system used in our infrastructure, from DGAS to APEL and the procedure is quite simple.
Each resource centre needs to install a new node (the APEL Publisher) which receives the accounting information sent from the CE(s) by the APEL parser. Then the APEL publisher sends the data to the central database using the messaging infrastructure.
We are testing two scenarios:
- the accounting data are sent directly to the central databse (canonic installation)
- the accounting data are sent to FAUST and to the central database
Registration
you need to register the APEL publisher in the GOC-DB and ask the APEL team to authorize the publisher in sending the data. Follow the instructions here
https://wiki.egi.eu/wiki/MAN09_Accounting_data_publishing
APEL Publisher Installation and Configuration
Follow the
EMI3 generic installation guide and the APEL one
https://twiki.cern.ch/twiki/pub/EMI/EMI3APELClient/APEL_Publisher_System_Administrator_Guide.pdf
Example of
client.cfg
Example of
sender.cfg
Don't start the apelclient and don't set it in the daily cron until you receive the OK by the APEL team.
Remember to use the testing queue of the broker network during the first days
Sending the data to FAUST
in case of the second scenario, follow the instructions
https://github.com/andreaguarise/ssm-dupl-send
this mean that instead of apelclient script, you have to use the ssm-dupl-send.sh one
APEL Parser Installation and Configuration
Install and configure the APEL parser on each computing element of your resource centre.
Follow the
EMI3 generic installation guide and the APEL one
https://twiki.cern.ch/twiki/pub/EMI/EMI3APELClient/APEL_Parsers_System_Administrator_Guide.pdf
Here an example of parser.cfg file
Don't make parse the blah and batch server logs older than one month before to the current one.
you can launch the apelparser script after the setting-up of the apelclient database
What about DGAS sensors?
you may leave active the dgas sensors: just request to NGI_IT to disable the data sending from DGAS to APEL for your site
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AlessandroPaolini - 2014-06-13