Difference between revisions of "Logging Infrastructure"

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Here is a schema explaining how they interact with each other:
 
Here is a schema explaining how they interact with each other:
[[File:Syslog_with_journald.png|thumbnail|jounarld and PmLogDaemon]]
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[[File:Syslog_with_journald.png|thumbnail|journald and PmLogDaemon]]
  
 
In other words, the logging works in this order:
 
In other words, the logging works in this order:

Latest revision as of 13:03, 8 June 2020

Logging Infrastructure in LuneOS

There are two main pieces in the logging infrastructure: journald and PmLogDaemon.

Here is a schema explaining how they interact with each other:

journald and PmLogDaemon

In other words, the logging works in this order:

1. journald aggregates all the messages in its journal: syslog, services output, kernel messages...
2. journald outputs the consolidated journal to a dedicated socket (when available)
3. PmLogDaemon creates that socket and produces its own file-based log output