Label membership is now stored in the label_membership table. This is
done in preparation for adding "manual" labels, as previously label
membership was associated directly with label query executions.
Label queries are now all executed at the same time, rather than on
separate intervals. This simplifies the calculation of which distributed
queries need to be run when a host checks in.
This change optimizes live queries by pushing the computation of query
targets to the creation time of the query, and efficiently caching the
targets in Redis. This results in a huge performance improvement at both
steady-state, and when running live queries.
- Live queries are stored using a bitfield in Redis, and takes
advantage of bitfield operations to be extremely efficient.
- Only run Redis live query test when REDIS_TEST is set in environment
- Ensure that live queries are only sent to hosts when there is a client
listening for results. Addresses an existing issue in Fleet along with
appropriate cleanup for the refactored live query backend.
* Moving query attributes from the query object to the pack-query relationship
* some additional tests
* http request parsing test
* QueryOptions in new test_util code
* initial scaffolding of new request structures
* service and datastore
* test outline
* l2 merge conflict scrub
* service tests for scheduled query service
* service and datastore tests
* most endpoints and transports
* order of values are not deterministic with inmem
* transport tests
* rename PackQuery to ScheduledQuery
* removing existing implementation of adding queries to packs
* accounting for the new argument to NewQuery
* fix alignment in sql query
* removing underscore
* add removed to the datastore
* removed differential from the schema
- New datastore method for bulk deletion
- New service method calling this datastore method
- Endpoint, transport and handler connections for service method
Closes#389
