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Showing posts with the label gRPC

Configuring Cisco IOS-XE Model-Driven Telemetry (gRPC Dial-Out) with Telegraf

  Migrating from legacy polling mechanisms to a modern SNMP alternative requires a shift in network observability architecture. Cisco Model-Driven Telemetry (MDT) enables edge routers to stream high-frequency, structured data directly to a time-series database. However, SREs and Network Observability Engineers frequently encounter roadblocks when configuring gRPC dial-out to Telegraf. Connections drop silently, logs fill with TLS handshake errors, or data fails to parse due to protobuf decoding mismatches. Streaming telemetry requires precise alignment between the router's transport protocols, encoding formats, and the collector's ingress configurations. This guide provides a definitive technical solution to stabilize IOS-XE gRPC telemetry streams to Telegraf. The Root Cause: TLS and Encoding Mismatches Failures in Cisco MDT implementations almost universally trace back to two specific architectural mismatches at the gRPC layer. 1. HTTP/2 and TLS Trust Chain Failures gRPC opera...

Handling 'RESOURCE_TEMPORARILY_EXHAUSTED': Best Practices for Google Ads API Rate Limiting

  There is no quicker way to kill a high-performance marketing SaaS platform than ignoring gRPC error code 8. You are running a bulk keyword update for a tier-one enterprise client. The job runs smoothly for the first 2,000 operations, then suddenly crashes. Your logs are flooded with   RESOURCE_TEMPORARILY_EXHAUSTED . If your recovery strategy is simply "try again immediately," you are actively participating in a Denial of Service (DoS) attack against your own integration. This error is not a hard quota limit (like the daily operation cap). It is a flow control mechanism. This article dissects why Google throws this error, how to architect a resilience layer using exponential backoff with jitter, and when to switch from standard mutations to the  BatchJobService . The Root Cause: gRPC Code 8 and System Overload To fix the error, you must understand the architecture of the Google Ads API. It relies on gRPC, a high-performance RPC framework. When you receive  RESOURCE...