haystack

Haystack audio processing fails with empty document metadata

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Haystack Audio Processing Fails with Empty Document Metadata Problem Description During document ingestion, audio files are passed through the AudioDocumentConverter and Speech2Text nodes but the resulting Document.text field is empty and the metadata columns in PostgreSQL contain NULL or truncated values. The pipeline completes without raising an exception, yet the indexed documents contain no transcription … 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

Haystack DocumentRetriever context window overflow with long documents

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Problem – Context Window Overflow When Using Haystack DocumentRetriever In a production data pipeline that ingests long technical reports (PDFs, Word docs, etc.), the DocumentRetriever backed by ElasticsearchDocumentStore returns whole document sections that exceed the token limit of downstream LLMs. The pipeline aborts with errors such as: Token limit exceeded: 8192 tokens (max 4096) ElasticsearchDocumentStoreError: Document … Read more

Haystack ConfigMap mount error in multi-region Kubernetes deployment

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Problem – ConfigMap/Secret Mount Errors in a Multi‑Region Haystack Deployment In a production Haystack deployment spanning multiple AWS regions, pods repeatedly fail during initialization with messages such as: Error: “failed to sync config: open /etc/haystack/config.yaml: no such file or directory” MountVolume.SetUp failed for volume “config” : hostPath type check failed: path /etc/haystack does not exist … Read more

Haystack query decomposition error with FAISS index on A100 GPU

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Problem Description In a distributed Retrieval‑Augmented Generation (RAG) pipeline built with Haystack 1.19.x, the query_decomposition step crashes when the FAISS index is placed on an A100/H100 GPU. Typical error messages observed in the logs are: Traceback (most recent call last): File “…/haystack/pipeline/pipeline.py”, line 312, in run results = component.run(**inputs) File “…/haystack/nodes/retriever/faiss.py”, line 421, in run … Read more