fleet/changes/16331-address-redis-issues-live-query
Martin Angers 6c0e56ea73
Address multiple redis-related issues observed with live queries (#16855)
#16331 

Doc updates in a separate PR:
https://github.com/fleetdm/fleet/pull/17214

# Checklist for submitter

- [x] Changes file added for user-visible changes in `changes/` or
`orbit/changes/`.
See [Changes
files](https://fleetdm.com/docs/contributing/committing-changes#changes-files)
for more information.
- [x] Input data is properly validated, `SELECT *` is avoided, SQL
injection is prevented (using placeholders for values in statements)
- [x] Added/updated tests
- [x] Manual QA for all new/changed functionality (smoke-tested locally
with osquery-perf simulating 100 hosts, ran a live query, a saved live
query, stopped naturally and stopped before the end, and again via
fleetctl)

---------

Co-authored-by: Victor Lyuboslavsky <victor@fleetdm.com>
Co-authored-by: Victor Lyuboslavsky <victor.lyuboslavsky@gmail.com>
2024-02-27 19:35:27 -06:00

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* Added logging when a Redis connection is blocked for a long time waiting for live query results.
* Added support for the `redis.conn_wait_timeout` configuration setting for Redis standalone (it was previously only supported on Redis cluster).
* Added Redis cleanup of inactive queries in a cron job, so temporary Redis failures to stop a live query doesn't leave such queries around for a long time.