0519fa223c
Any CLI commands that depend on core Elasticsearch might touch classes (directly or indirectly) that depends on logging. If they do this and logging is not configured, Log4j will dump status error messages to the console. As such, we need to ensure that any such CLI command configures logging (with a trivial configuration that dumps log messages to the console). Previously we did this in the base CLI command but with the refactoring of this class out of core Elasticsearch, we no longer configure logging there (since we did not want this class to depend on settings and logging). However, this meant for some CLI commands (like the plugin CLI) we were no longer configuring logging. This commit adds base classes between the low-level command and multi-command classes that ensure that logging is configured. Any CLI command that depends on core Elasticsearch should use this infrastructure to ensure logging is configured. There is one exception to this: Elasticsearch itself because it takes reponsibility into its own hands for configuring logging from Elasticsearch settings and log4j2.properties. We preserve this special status. Relates #27523 |
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