doris-debug-compaction SKILL.md skillA
doris-debug-compaction 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-compaction@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/compaction/SKILL.md- Versions recorded
- 1
- Latest version
- v0.2.0, committed Jul 24, 2026
- Size
- 2,428 bytes
- Repository stars
- 47
- License
- Apache-2.0
Use for Doris -235 / too many versions and compaction lag. Error raised in RowsetBuilder::check_tablet_version_count when version_count > max_tablet_version_num (default 2000) or meta serialize size limit.
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
# Compaction / Versions ## Code `be/src/storage/rowset_builder.cpp`: - `version_count > max_version_config` → `Status::Error<TOO_MANY_VERSION>(...)` - Suggests reduce load frequency or raise `max_tablet_version_num` / `time_series_max_tablet_version_num` in `be.conf` - Near limit triggers cumulative compaction submit Defaults (`config.cpp`): `max_tablet_version_num=2000`, `time_series_max_tablet_version_num=20000`. ## Causes | ID | Cause | Evidence | Fix direction | |----|-------|----------|---------------| | A | Ingest rate > compaction throughput | version_count rising; compaction score growing | Reduce ingest frequency or increase compaction threads | | B | Disk IO bottleneck | `iostat` shows disk util > 90% | Move WAL to separate disk; add compaction disks | | C | max_tablet_version_num too low for workload | -235 on normal ingest rates | Raise limit (temporary), then fix root cause | | D | Single-tablet hotspot | One tablet has 10× versions of peers | Partition / bucket key skew | ## Actions 1. Confirm with `./scripts/doris-debug log-grep be/log --pack versions` 2. Check compaction throughput: `./scripts/doris-debug be-metrics --be http://$BE:8040 --grep compaction` …
Read the whole file at its exact version.
How to install
mdr add apache/doris-skills/doris-debug-compaction@sha256:9c71413286ad3081The 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_rmp236zlrpeabdse)
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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 (2428 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_rmp236zlrpeabdse GET https://markdownregistry.com/api/v1/resolve?ref=apache/doris-skills/doris-debug-compaction GET https://markdownregistry.com/api/v1/blob/9c71413286ad30818c211934c9258eae474d4d7f44c4b6af5476b79bc55b734f
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.