* re-add new testing harness
* add healthcheck port and pick random grpc port to listen on
* feat: parallel load tests and faster tests
* make parallelism = 5
* fix: lint
* add linter to pre
* fix: add back rampup fixes
* reduce matrix on PR, add matrix to pre-release step
* make load tests less likely to block
* make limit strategy group round robin
* uncomment lines
- Simplifies architecture for splitting engine services into different components. The three supported services are now `grpc-api`, `scheduler`, and `controllers`. The `grpc-api` service is the only one which needs to be exposed for workers. The other two can run as unexposed services.
- Fixes a set of bugs and race conditions in the `v2` scheduler
- Adds a `lastActive` time to the `Queue` table and includes a migration which sets this `lastActive` time for the most recent 24 hours of queues. Effectively this means that the max scheduling time in a queue is 24 hours.
- Rewrites the `ListWorkflowsForEvent` query to improve performance and select far fewer rows.
* feat(throughput): single process per queue
* fix data race
* fix: golint and data race on load test
* wrap up initial v2 scheduler
* fix: more debug logs and tighten channel logic/blocking sends
* improved casing on dispatcher and lease manager
* fix: data race on min id
* increase wait on load test, fix data race
* fix: trylock -> lock
* clean up queue when no longer in set
* fix: clean up cache on exit
* ensure cleanup is only called once
* address review comments
* (wip) handle step run updates without deferred updates
* refactor: buffered writes of step run statuses
* fix: add more safety on tenant pools
* add configurable flush period, remove wait for started
* flush immediately if last flush time plus flush period is in the past
* feat: add configurable flush internal/max items