trinodb
Log a message if file system caching is disabled on coordinator
Description
If a connector does not support caching on a Coordinator, Trino instantiates Alluxio JMX statistics but quietly disables caching. As a result, it appears that caching is instantiated and is operating. Consequently, it's really confusing when caching doesn't work but there is no indication why.
This PR will issue a warning on startup to let the user know that caching has been disabled for the Coordinator.
Considering this is a trivial PR, I didn't create a ticket. But if that is appropriate, I will open an issue.
Additional context and related issues
N/A
Release notes
(x) This is just a logging message, and no release notes are required. ( ) Release notes are required. Please propose a release note for me. ( ) Release notes are required, with the following suggested text:
Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: Andrew Hall. This is most likely caused by a git client misconfiguration; please make sure to:
- check if your git client is configured with an email to sign commits
git config --list | grep email - If not, set it up using
git config --global user.email [email protected] - Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails
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Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: Andrew Hall. This is most likely caused by a git client misconfiguration; please make sure to:
- check if your git client is configured with an email to sign commits
git config --list | grep email - If not, set it up using
git config --global user.email [email protected] - Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails
