certificate

Prometheus scrape TLS handshake failure after streaming service cert rotation

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Prometheus scrape TLS handshake failure after streaming service cert rotation Problem Symptoms and impact After a scheduled certificate rotation on the real‑time streaming platform, Prometheus began reporting scrape errors for the affected endpoint: 2026-10-19T08:15:32.123Z level=error msg=”scrape failed” target=”streaming-prod.example.com:443″ err=”Get \”https://streaming-prod.example.com/metrics\”: remote error: tls: handshake failure” 2026-10-19T08:15:32.124Z level=error msg=”scrape failed” target=”streaming-prod.example.com:443″ err=”connection reset by peer” Prometheus … Read more

SSL handshake failure to Anthropic Claude API after TLS cert rotation

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Problem – SSL/TLS Handshake Failure When Calling Anthropic Claude API Our cloud‑managed service attempts to invoke the Anthropic Claude API over HTTPS. After a scheduled TLS certificate rotation on the Anthropic side, all outbound requests started failing with a handshake error. The failure manifested as immediate connection aborts, no data returned, and a surge in … Read more

PostgreSQL SSL handshake failure after certificate expiration in Docker dev

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PostgreSQL SSL Handshake Failure After Certificate Expiration in Docker Development Problem Description During a local AI model training run, the Python script that connects to the PostgreSQL service via psycopg2 started throwing: psycopg2.OperationalError: SSL SYSCALL error: certificate verify failed PostgreSQL container logs showed the corresponding server‑side error: 2026-09-12 10:45:23.456 UTC [1] LOG: SSL error: certificate … Read more

Anthropic Claude certificate expiration in Kubernetes cluster

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Anthropic Claude Certificate Expiration in a Kubernetes Cluster Problem Description (Symptoms and Impact) Several microservices that call the Anthropic Claude API began failing with TLS‑related errors after a routine maintenance window. Typical log excerpts from affected pods include: 2024-03-12T14:22:07Z ERROR pod/claude-client-7f9c9d9c5b-ktz9l: x509: certificate has expired 2024-03-12T14:22:07Z ERROR pod/claude-client-7f9c9d9c5b-ktz9l: failed to do request to https://api.anthropic.com/v1/complete: Get … Read more

TensorRT model serving fails after certificate expiration

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Problem Description During a routine A/B test that routes production traffic across two GPU‑accelerated inference endpoints (Triton Server with TensorRT‑optimized models), the following symptoms appeared: gRPC clients started failing with UNAVAILABLE: SSL handshake failed. HTTP API gateway returned 502 Bad Gateway – TLS handshake timeout. Model loading logs showed Failed to load TLS certificate: certificate has … Read more

Weaviate service unavailable after TLS certificate expiration

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Problem – Weaviate Service Unavailable After TLS Certificate Expiration In a cloud‑managed Weaviate deployment (e.g., on AWS EKS or GKE) the API endpoint becomes unreachable shortly after the TLS/SSL certificate used by the Ingress controller or the ALB expires. Clients see errors such as: x509: certificate has expired or is not yet valid TLS handshake … Read more

PyTorch model evaluation fails due to SSL certificate expiration

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Problem – Model Evaluation Fails with SSL Certificate Expiration During a distributed evaluation run, PyTorch attempts to download model checkpoints, dataset shards, or auxiliary assets from remote HTTPS endpoints (e.g., torch.hub, torch.utils.model_zoo, torchvision.datasets, or torch.distributed RPC). When the TLS certificate presented by the server has expired, the download aborts and the entire evaluation job terminates. … Read more

Haystack SSL/TLS handshake failure with self-signed certificates

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Problem – Haystack TLS Handshake Fails in a Local Development Sandbox When running a multi‑service Haystack stack with Docker Compose, the inter‑node RPC layer aborts with TLS errors such as: SSLHandshakeException: certificate verify failed (self signed certificate in certificate chain) javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated OpenSSL error: verify error:num=20:unable to get local issuer certificate HaystackNodeError: TLS … Read more