Fix Gorse recommendation engine failing to connect to ClickHouse Cloud with EOF errors. Use when: (1) Gorse pods crash with "failed to connect data database" and "EOF" error, (2) Using ClickHouse Cloud (*.clickhouse.cloud) as Gorse data store, (3) TLS connection works (verified with openssl) but Gorse still fails, (4) Tried secure=true, different ports (8443, 9440), timeout params without success. The Gorse ClickHouse driver is incompatible with ClickHouse Cloud's native protocol.
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查看安装方法安装前可以查看交给 AI 代理的指令内容。
Gorse recommendation engine fails to connect to ClickHouse Cloud with EOF errors during protocol negotiation, even though TLS handshake succeeds.
failed to connect data database: EOF or transport failed to send a request to ClickHouse: EOFDespite the clickhouse:// URL scheme suggesting native protocol, Gorse actually uses the
HTTP interface on port 8123 (not the native protocol on port 9000/9440). ClickHouse Cloud's
HTTP interface on port 8443 has compatibility issues with Gorse's driver.
Key facts:
clickhouse://, mysql://, postgres://, mongodb://https:// scheme (returns "unsupported data storage backend")Deploy ClickHouse Operator with an in-cluster instance for Gorse:
# Standard in-cluster connection works
GORSE_DATA_STORE: "clickhouse://user:password@clickhouse-host:8123/gorse"
Gorse supports MySQL and PostgreSQL as data stores:
GORSE_DATA_STORE: "mysql://user:password@host:3306/gorse"
# or
GORSE_DATA_STORE: "postgres://user:password@host:5432/gorse"
Set up a proxy (like chproxy) that translates between protocols.
Keep Gorse disabled and let the API fallback to popularity-based recommendations:
{"videos": [...], "source": "popular"}
After choosing a solution, check Gorse master logs:
kubectl logs -l app=gorse-master -n gorse --tail=20
Should show successful connection instead of EOF errors.
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Fix ArgoCD ExternalSecret deployment failing with "namespace X is not permitted in project Y". Use when: (1) ExternalSecret shows OutOfSync in ArgoCD but won't sync, (2) ArgoCD application status shows "namespace X is not permitted in project 'infrastructure'", (3) ExternalSecret targets a namespace managed by a different ArgoCD project, (4) Using apps-of-apps pattern with separate infrastructure and application projects.
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Art direction for any content — reads text, PDF, Word, HTML, PPT, then proposes 2-3 creative directions with photography style, mood, and visual language. After selection, generates AI image prompts and visual briefs section-by-section. Use when the user shares content and needs visual direction, image sourcing, or creative direction for any material.
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Fix "Null check operator used on a null value" errors when an object is set to null during an async await. Use when: (1) Object reference is nullified while awaiting, (2) Code accesses object with ! after await returns, (3) Cancel/dispose operations run concurrently with async operations on same object. Solution: capture local reference before await.
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Add custom metadata headers (x-amz-meta-*) to AWS v4 signed requests for GCS S3-compatible API. Use when: (1) Adding custom metadata to GCS uploads via S3 API, (2) Getting signature mismatch errors after adding new headers, (3) x-amz-meta-* headers being ignored or causing 403 errors. Custom headers MUST be included in canonical headers and signed headers list.
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Fix password/secret authentication failures caused by trailing newlines when creating Google Cloud secrets (or similar) with bash here-strings. Use when: (1) Password authentication fails with correct password, (2) Secret created with `<<< "value"` syntax, (3) Error like "password authentication failed" or "invalid token" despite correct value. Bash here-strings (`<<<`) add a trailing newline that corrupts secrets.
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Fix silent video/media processing failures caused by URL extraction code that filters on file extensions (.mp4, .webm, .webp). Use when: (1) Media moderation, transcoding, or analysis silently skips files from Blossom or content-addressed storage servers, (2) URL extraction from Nostr event tags (imeta, r tags) drops URLs without recognized extensions, (3) CDN fallback URLs append .mp4 but the actual server uses extensionless content-addressed paths like /{sha256}. Common in Nostr video events (kind 34236) where different clients use different URL formats.
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