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Posted to notifications@skywalking.apache.org by "hanahmily (via GitHub)" <gi...@apache.org> on 2025/11/27 02:26:22 UTC
[I] [Feature] Implement Sidecar and Discovery Proxy for First Occurrence Data Collection (FODC) [skywalking]
hanahmily opened a new issue, #13594:
URL: https://github.com/apache/skywalking/issues/13594
### Search before asking
- [x] I had searched in the [issues](https://github.com/apache/skywalking/issues?q=is%3Aissue) and found no similar feature requirement.
### Description
### Feature Request
This issue tracks the implementation of two core components for the BanyanDB First Occurrence Data Collection (FODC) system: the **FODC Sidecar** and the **Discovery Proxy**. These components are essential for building an automated, state-aware forensics and diagnostics architecture.
### Background
The BanyanDB FODC system is designed to capture the entire context of a crash or stall the moment it happens, enabling AI agents to resolve complex runtime issues without human reproduction. The architecture relies on a sidecar pattern for data collection and a discovery proxy for cluster-wide topology management and data access.
### 1. FODC Sidecar ("The Black Box")
The FODC Sidecar runs alongside each BanyanDB instance and is responsible for monitoring, recording, and coordinating diagnostic data collection.
#### Responsibilities:
* **Watchdog:** Polls metrics from the BanyanDB container and detects "death rattles" (e.g., signals, file-based triggers) that indicate an impending or current failure.
* **Flight Recorder:** Buffers metrics data in a circular buffer within its own memory space. This ensures data survives if the main BanyanDB process crashes.
### 2. Discovery Proxy
The Discovery Proxy is a standalone service that provides a centralized view of the BanyanDB cluster and serves as a gateway to diagnostic data.
#### Responsibilities:
* **Topology Discovery and Recording:** Continuously discovers and records the BanyanDB deployment topology. This includes node locations, shard assignments, and replication configurations. The topology should be versioned.
* **Watchdog Data Access Gateway:** Provides a unified API for accessing diagnostic data from all sidecars in the cluster. This abstracts the complexity of communicating with individual sidecars.
### Implementation Tasks
* [ ] Implement the sidecar container with watchdog functionality.
* [ ] Implement the proxy service.
* [ ] Conduct e2e tests to ensure the entire data collection and access pipeline works as expected.
* [ ] Update Helm chart to support sidecar and proxy deployment
### Use case
_No response_
### Related issues
_No response_
### Are you willing to submit a pull request to implement this on your own?
- [ ] Yes I am willing to submit a pull request on my own!
### Code of Conduct
- [x] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
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Re: [I] [Feature] Implement Sidecar and Discovery Proxy for First Occurrence Data Collection (FODC) [skywalking]
Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng closed issue #13594: [Feature] Implement Sidecar and Discovery Proxy for First Occurrence Data Collection (FODC)
URL: https://github.com/apache/skywalking/issues/13594
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Re: [I] [Feature] Implement Sidecar and Discovery Proxy for First Occurrence Data Collection (FODC) [skywalking]
Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng commented on issue #13594:
URL: https://github.com/apache/skywalking/issues/13594#issuecomment-4010193827
FODC has been added.
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Re: [I] [Feature] Implement Sidecar and Discovery Proxy for First Occurrence Data Collection (FODC) [skywalking]
Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng commented on issue #13594:
URL: https://github.com/apache/skywalking/issues/13594#issuecomment-3584074379
FODC Proxy should start from leveraging the K8s API to watch the BanyanDB relative deployment, and collect info from sidecars of all deployments/stateful nodes. Each pod should be expected to have one FODC sidecar.
@Fine0830 Please share the exposed configuration structure here, to make sure we are in the same page about the overview of the whole deployment structure.
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