Add new `ClutchRps` auto scale type. Include sourcejob drop in PID controller

See #85 .

Fix bug in determining source job metric vs job metric

See #84

Pick up new dependencies

Handle empty string in source metric param (#83)

* Add mantis publish properties to docs

* Update MQL docs for using [*]

* Add myself as code owners

* Rule base auto scale should not scale down lower than min

* add comment

* Subscribe to source job drop metrics in job master

* add copy right, fix tests

* Address review comments. Add parameters to system params.

* Handle empty string for drop metric param

Co-authored-by: Calvin Cheung <[email protected]>

Handle empty string in source metric parameter

See #83 . Better handling of parameter input for additional source job drop metrics.

Support pulling source job metrics to feed to auto scaler

See #82 . Job master can now optionally subscribe to workers from source jobs to pull metrics. This is gated by a job property. Drop metrics from source jobs are feed to the auto scaler.

pickup latest patch version for mantis-rxcontrol dependency

Merge pull request #81 from nickmahilani/master

pin mantis-rxcontrol to pick latest patch version

Concurrency in Group - Scalar stage

see PR #79

Close buffered readers in tests

See PR #76 for more info.

Add better event time support for Iceberg Writers

See PR #75 for more info.

Add Timer support for Metrics

See PR #72, #73, #74 for more info.