tikv-panic

Diagnose TiKV fatal process exits with log signatures and workarounds.

Updated Jun 3, 2026
One-click install
npx skills add https://github.com/alex-quan-001/nutshell-skills --skill tikv-panic
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tikv-panic
Source: https://github.com/alex-quan-001/nutshell-skills/tree/main/skills/diagnosis/tikv-panic
Command: npx skills add https://github.com/alex-quan-001/nutshell-skills --skill tikv-panic

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

TiKV fatal process exits including panics, segmentation faults, and restart loops cause immediate cluster downtime and data unavailability, and on-call engineers often waste critical time searching for scattered, unvetted troubleshooting guidance. This skill provides a single, curated reference of known TiKV failure patterns to speed up incident resolution.

Core Features & Use Cases

  • Known Failure Pattern Catalog: Pre-documented reference for common TiKV fatal exits including SIGSEGV crashes, missing SST file ingest failures, system clock rollback panics, PITR task-triggered crashes, and coprocessor response overflow errors.
  • Actionable Resolution Guidance: Each pattern includes clear log signatures, step-by-step workarounds, and fixed version notes to eliminate ad-hoc research during high-pressure incidents.
  • Use Case: When an on-call engineer receives an alert for a TiKV node repeatedly crashing with a FATAL log after pausing a PITR task, this skill immediately surfaces the known tikv#17020 root cause, workarounds to avoid frequent pause/resume operations, and the list of fixed versions to upgrade to.

Quick Start

Use the tikv-panic skill to diagnose a TiKV node that is crashing with a SIGSEGV backtrace on an ARM weak-memory platform.

Frequently Asked Questions about tikv-panic

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I diagnose a TiKV panic or restart loop during an on-call incident?

To diagnose a TiKV panic or restart loop, match the fatal log signatures against a catalog of known failure patterns like SIGSEGV crashes or missing SST files to find actionable workarounds and fixed versions.

Why does my TiKV node crash with a SIGSEGV on ARM weak-memory platforms?

TiKV crashes with a SIGSEGV on ARM weak-memory platforms due to specific known memory concurrency issues; identifying the backtrace signature allows mapping to documented root causes and targeted upgrade paths.

What causes TiKV fatal exits when pausing or resuming PITR tasks?

TiKV fatal exits during PITR task operations are triggered by known issues like tikv#17020; resolving them involves applying workarounds to avoid frequent pause/resume cycles and upgrading to fixed versions.

How do I fix TiKV missing SST file ingest failures?

Fix TiKV missing SST file ingest failures by referencing pre-indexed log signatures to confirm the crash pattern, then applying the specific step-by-step workarounds and upgrading to the noted fixed versions.

Can I use this TiKV crash diagnosis reference for TiDB Cloud deployments?

Yes, this reference supports diagnosing TiKV crashes and restart loops for both TiDB Cloud and on-premises TiKV deployments, covering system clock rollback events and coprocessor response overflow errors.

What should I do if a TiKV system clock rollback triggers a panic?

If a TiKV system clock rollback triggers a panic, locate the specific log signature in the failure pattern catalog to identify the root cause and apply the documented workarounds to restore cluster availability.