doris-debug-query

doris-debug-query is a skill for Claude Code, Codex from apache/doris-skills. It costs 62 tokens per session (845 once invoked), scanned A, original, Apache-2.0.

A troubleshooting guide for slow, hanging, or timed-out Apache Doris queries. Apache Doris is a distributed analytical database whose work may occur in a frontend planner or backend execution nodes.

In plain words
What is it for?
Checking Doris planner timeouts, backend scans and joins, exchange waits, and brpc communication errors. It also covers session settings and log or metric checks for reproducing a problem.
Why use it?
It helps identify whether the delay comes from the client timeout, query planning, database computation, or communication between nodes. It provides a route to deeper profile analysis when computation is the likely cause.

Skill for Claude CodeCodex ✓ vendor

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./scripts/doris-debug log-grep fe/log be/log --query-id "$QID" --pack planner.

Good fit Checking Doris planner timeouts, backend scans and joins, exchange waits, and brpc communication errors. It also covers session settings and log or metric checks for reproducing a problem.

Compare 6 skills from other repositories ↓
About the project

Apache Doris Skills is a collection of agent instructions containing Apache Doris database knowledge for designing, sizing, operating, diagnosing, and contributing to Doris clusters. It serves developers and operators using Claude Code, Cursor, Codex, Cline, Amp, and other agent tools, with the skills providing decision logic and evidence-based workflows.

apache/doris-skills · 47 stars · on GitHub · doris.apache.org

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/apache/doris-skills
agentmods
npx agentmods add skills/apache/doris-skills/query

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for doris-debug-query

README.md
[![agentmods](https://agentmods.dev/badge/skills/apache/doris-skills/query/github.svg)](https://agentmods.dev/skills/apache/doris-skills/query)
Your own site
<a href="https://agentmods.dev/skills/apache/doris-skills/query"><img src="https://agentmods.dev/badge/skills/apache/doris-skills/query/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for doris-debug-query

Your own site · 80×15
<a href="https://agentmods.dev/skills/apache/doris-skills/query"><img src="https://agentmods.dev/badge/skills/apache/doris-skills/query.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 845 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00062 $0.00845
Opus 5.5 $0.00025 $0.00338
Sonnet 5.5 $0.00012 $0.00169
Haiku 4.5 $0.00006 $0.00085

Measured 1mo ago against content hash 675cd25e2b20, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

doris-debug-query scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s "http://$FE:8030/api/query_profile?query_id=$QID"
skills/doris-debug/query/SKILL.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Query Troubleshooting

Causes

ID Cause Evidence
A Client timeout too small query_timeout vs Profile wall
B Planner Nereids cost too much time / nereids_timeout_second
C BE compute (scan/join/spill) Profile active ExecTime
D Exchange / brpc WaitForData ≈ timeout; failed to send brpc when exchange; [E1008] on :8060

10 min

SET enable_profile = true;
-- reproduce
./scripts/doris-debug log-grep fe/log be/log --query-id "$QID" --pack planner
./scripts/doris-debug log-grep be/log --query-id "$QID" --pack exchange
./scripts/doris-debug audit-topk fe/log/fe.audit.log -k 20 --min-ms 5000

Planner mitigation (session only): SET disable_join_reorder=true; for fat ETL joins; fix stats with ANALYZE.

Cause C — BE compute (scan/join/spill)

When Profile shows high active ExecTime (not Wait*), route to doris-profile-reader for deep Profile analysis:

Skill routing: If doris-profile-reader is available, invoke it with the query's Profile to identify which operator (scan/join/agg/spill) dominates. Key indicators to pass:

  • ActiveTime per operator
  • RowsRead / ScanBytes for scan operators
  • SpillDataSize if disk spill occurred
  • JoinType + JoinRows for join operators

Without profile-reader, check directly:

# Get the Profile text
curl -s "http://$FE:8030/api/query_profile?query_id=$QID"

Key Profile counters for Cause C:

Counter Meaning Threshold
ScannerGetBlockTime Time reading from storage > 50% of ExecTime → IO bound
SpillDataSize Data spilled to disk > 0 → memory pressure, check enable_spill
JoinProbeTime Hash join probe wall time > 30% → check join order / type
RowsRead / ScanBytes Scan volume > 1B rows → check partition pruning

Profile interpretation: prefer active time over Wait*.

Cause D — Exchange / brpc

Code facts (apache/doris):

Read the full file on GitHub · 88 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 88 lines · 62 tokens per session scan A 675cd25e2b20

Subscribe to this mod's changes

doris-debug-query is a skill published in the GitHub repository apache/doris-skills (47 stars, last pushed 17d ago), licensed Apache-2.0. It adds 62 tokens to every session and 845 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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