Document ways to cleanup expired sessions #3221
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| .createQueryBuilder('session') | ||
| .select('session.id') | ||
| .where('session.expires <= :now', { now }) | ||
| .getMany(); |
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For existing apps that have been in prod for a while, there might be millions of rows being selected here. I see we only select the id which is good, but I'm wondering whether there could still be issues here?
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I could change this to just run a DELETE query for every row where session.expires <= :now
-> that should not pose any issues I would say, but we also wouldn't be able to retrieve the sessionIds thereafter and thus not be able to delete them from the sessionCacheStrategy -> which I think wouldn't even be necessary since they are already expired so should not be in the cache anymore anyway (?) - haven't had a look at the internals of the sessionCacheStrategy
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The Redis session cache uses the built-in Redis TTL mechanism to evict old entries, and the default session cache is in-memory anyway, so yeah that should not be an issue.
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I think we should have a more general topic of "how to run scheduled tasks" with a general explanation of the problem and solution and then the session cleanup as the main example. In future we can then add more examples like cleaning up abandoned orders.
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good idea! should I put that into the "Developer Guide" section under "Advanced Topics" just like the "Migrating from v1" topic?
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I'll pick this back up ASAP but I'm currently not able to dedicate time to it. |
Description
Issue: #3219
This pull request adds a method to the SessionService that will cleanup expired sessions. Furthermore it adds a note to the SessionService docs to explain that sessions are not automatically cleaned up which references the new How-to guide demonstrating how to use Stand-alone CLI scripts to automate the process of cleaning up sessions.
Also updated the
docusaurus-theme-search-typesensepackage version to make docs generation work again.Breaking changes
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Checklist
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