doris-debug-data-lake SKILL.md skillA
doris-debug-data-lake from apache/doris-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add apache/doris-skills/doris-debug-data-lake@v0.2.0Pins v0.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- apache/doris-skills
- Path
skills/doris-debug/data-lake/SKILL.md- Versions recorded
- 1
- Latest version
- v0.2.0, committed Jul 24, 2026
- Size
- 3,158 bytes
- Repository stars
- 47
- License
- Apache-2.0
Use for Doris external catalog issues: Hive/Iceberg/Paimon/Hudi query failures, metadata refresh, filesystem S3/HDFS connectivity, external MV rewrite misses.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Data Lake (Multi-Catalog) ## Causes | ID | Cause | Evidence | Source anchor | |----|-------|----------|---------------| | A | Metadata stale | Query returns old data / missing partitions after upstream write | `HMSClient.java`, `CachedHMSClient.java` | | B | S3/HDFS connectivity | `Access Denied`, `Timeout`, `NoSuchBucket` | `S3FileSystem.java`, `HdfsResource.java` | | C | External MV rewrite miss | EXPLAIN shows no MATERIALIZED_REWRITE | `MTMVService.java` rewrite rules | | D | Schema mismatch | Parquet/ORC schema ≠ Hive Metastore schema | `ParquetReader.cpp`, schema merge | | E | Credential / IAM expiry | STS / IAM token rotated; 403 on S3 | `S3FileSystem.java` credential refresh | | F | Too many open files | FD exhaustion listing large table directories | BE `ulimit -n`, `FileSystem.listFiles()` | ## 10 min triage ```sql -- Verify catalog is alive SHOW CATALOGS; -- Refresh metadata (hive / iceberg / paimon) REFRESH CATALOG hive_catalog; REFRESH DATABASE hive_catalog.db_name; REFRESH TABLE hive_catalog.db_name.tbl_name; -- Check if external MV rewrite is enabled SET materialized_view_rewrite_enable_contain_external_table = true; -- Analyze external table for CBO stats …
Read the whole file at its exact version.
How to install
mdr add apache/doris-skills/doris-debug-data-lake@sha256:6fac97f2bb1402e9The line at the top of this page pins the label v0.2.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_mq5eemg5ntwdbpk6)
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Versions
The registry has recorded 1 version of this file, committed on Jul 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3158 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
apache/doris-skills · 47 stars · license Apache-2.0 · pushed 2026-09-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mq5eemg5ntwdbpk6 GET https://markdownregistry.com/api/v1/resolve?ref=apache/doris-skills/doris-debug-data-lake GET https://markdownregistry.com/api/v1/blob/6fac97f2bb1402e9e3849d5bdb0ec05ae0c18baf2848a37edc628efe4ad346cf
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.