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Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: Jacky <18255193+kthui@users.noreply.github.com>
Co-authored-by: Ryan McCormick <rmccormick@nvidia.com>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: Jacky <18255193+kthui@users.noreply.github.com>

Signed-off-by: PeaBrane <yanrpei@gmail.com>

refactor: redesign the metrics API from Trait to composition to make the code cleaner and easier to understand (#3687)
Signed-off-by: Keiven Chang <keivenchang@users.noreply.github.com>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: PeaBrane <yanrpei@gmail.com>

Signed-off-by: Krishnan Prashanth <kprashanth@nvidia.com>

Signed-off-by: PeaBrane <yanrpei@gmail.com>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: Brian Larson <brian.larson@baseten.co>
Signed-off-by: PeaBrane <yanrpei@gmail.com>
Co-authored-by: PeaBrane <yanrpei@gmail.com>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: Keiven Chang <keivenchang@users.noreply.github.com>

Signed-off-by: PeaBrane <yanrpei@gmail.com>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: michaelfeil <me@michaelfeil.eu>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: Graham King <grahamk@nvidia.com>

Signed-off-by: PeaBrane <yanrpei@gmail.com>

Signed-off-by: PeaBrane <yanrpei@gmail.com>

Signed-off-by: lyang24 <lanqingy93@gmail.com>

fix: use tokio spawn / interval.tick(), make nats metric names clearer, fix tests sharing environment variables (temp_env) (#2506)
Co-authored-by: Keiven Chang <keivenchang@users.noreply.github.com>

Co-authored-by: Keiven Chang <keivenchang@users.noreply.github.com>

Signed-off-by: jthomson04 <jwillthomson19@gmail.com>

feat: add a hierarchical Prometheus MetricsRegistry trait for DistributedRuntime, Namespace, Components, and Endpoint (#2008)
Co-authored-by: Keiven Chang <keivenchang@users.noreply.github.com>
Co-authored-by: Ryan Olson <rolson@nvidia.com>

Signed-off-by: Michael Feil <63565275+michaelfeil@users.noreply.github.com>
Co-authored-by: Michael Feil <63565275+michaelfeil@users.noreply.github.com>
Co-authored-by: jthomson04 <jwillthomson19@gmail.com>
Co-authored-by: Ryan Olson <ryanolson@users.noreply.github.com>

- Stop advertising a model when it's last instance stops. Previously was when any instance stops.
- Faster locks on model manager.
- Move discovery code out of http, as it is used by all inputs.

Add max_age to nats stream when create, 10 min should be very enough for prefill workers to consume. this prevent system crash while nats jetstream hits disk limit by endless growing messages.

Allow both password or TLS auth, if none of these is provided fallback to no auth

Closes #657

Part of https://github.com/ai-dynamo/dynamo/issues/743

In a distributed system we don't know if the remote workers need pre-processing done ingress-side or not. Previously Client required us to decide this before discovering the remote endpoints, which was fine because pre-processing was worker-side.

As part of moving pre-processing back to ingress-side we need to split this into two steps:
- Client discovers the endpoints, and (later PR) will fetch their Model Deployment Card.
- PushRouter will use the Model Deployment Card to decide if they need pre-processing or not, which affects the types of the generic parameters.

Part of #743