[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M6ACT6WC5Z074CDQHD5C0WB2":3,"skill-same:01M6ACT6WC5Z074CDQHD5C0WB2":98},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":18,"publishedAt":23,"linkOnly":24,"markdownContent":25,"markdownBody":26,"frontMatter":27,"refName":31,"commitSha":32,"skillDirectory":33,"forksCount":34,"repositoryHtmlUrl":35,"repositoryHomepageUrl":36,"ownerHtmlUrl":37,"ownerBlogUrl":38,"ownerDescription":6,"updatedAt":39,"install":40,"resources":53},"01M6ACT6WC5Z074CDQHD5C0WB2","doris-debug-node",null,"Use for Doris FE\u002FBE OOM, crash, or false Alive. BE: MemTrackerLimiter lines in be.WARNING; FE: JVM heap \u002F jstack. Distinguish heartbeat Alive from query\u002Fbrpc serving health.","apache\u002Fdoris-skills","apache","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F47359?v=4","01M6AC83E6K4FDKK7HZ8WNMQKE","The Apache Software Foundation","01M6ACSCMG5B9TTB7694HY14D0",50,"Apache-2.0","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fnode\u002FSKILL.md",[],[19,20,21,22],"debug","doris","doris debug","doris debug node","2026-11-10 10:12:30",false,"---\nname: doris-debug-node\ndescription: >\n  Use for Doris FE\u002FBE OOM, crash, or false Alive. BE: MemTrackerLimiter lines in be.WARNING;\n  FE: JVM heap \u002F jstack. Distinguish heartbeat Alive from query\u002Fbrpc serving health.\nversion: 0.2.0\ncategory: node\n---\n\n# Node Health\n\n## Causes\n\n| ID | Cause | Evidence | Source anchor |\n|----|-------|----------|---------------|\n| A | BE OOM \u002F killed | `dmesg` shows `Killed`; `be.WARNING` MemTrackerLimiter | `mem_tracker_limiter.cpp` |\n| B | FE JVM OOM | GC overhead \u002F heap dump; `fe.out` shows `OutOfMemoryError` | `fe.conf` JVM opts |\n| C | BE crash (SIGSEGV\u002FSIGABRT) | Core dump; `be.out` stacktrace | `doris_main.cpp` signal handler |\n| D | False Alive | `SHOW BACKENDS` Alive=true but queries fail brpc | `heartbeat` vs brpc health |\n| E | FD exhaustion | `Too many open files` in be.WARNING | `ulimit -n` |\n\n## 10 min triage\n\n```bash\n# Memory pressure signals\n.\u002Fscripts\u002Fdoris-debug log-grep be\u002Flog --pack memory\ndmesg -T | grep -i \"killed process\" | tail -5\n\n# FE JVM\njstack $(cat \u002Fpath\u002Fto\u002Ffe.pid) > \u002Ftmp\u002Ffe.jstack\njmap -heap $(cat \u002Fpath\u002Fto\u002Ffe.pid) 2>\u002Fdev\u002Fnull | head -30\n\n# FD count\nls \u002Fproc\u002F$(cat \u002Fpath\u002Fto\u002Fbe.pid)\u002Ffd | wc -l\ncat \u002Fproc\u002F$(cat \u002Fpath\u002Fto\u002Fbe.pid)\u002Flimits | grep \"open files\"\n\n# Resource snapshot\ntop -b -n 1 -p $(cat \u002Fpath\u002Fto\u002Fbe.pid) | head -5\nfree -h\n```\n\n## Cause A — BE OOM\n\nDoris tracks memory via MemTracker, but process RSS exceeds tracked memory due to:\n- jemalloc arena fragmentation (10-20% overhead)\n- brpc buffer pools (outside MemTracker)\n- Thread stacks (~8MB each × thread count)\n\n```bash\n# RSS vs tracked\nps -o rss= -p $BE_PID | awk '{printf \"RSS: %.1f GB\\n\", $1\u002F1024\u002F1024}'\ngrep \"MemTrackerLimiter.*total\" be\u002Flog\u002Fbe.WARNING | tail -1\n```\n\n```properties\n# be.conf — defensive settings\nmem_limit = 70%              # Leave 30% for overhead\nmax_segment_cache_size = 0   # Or cap explicitly\nenable_je_purge = true       # jemalloc dirty page cleanup\n```\n\nIf `ProcessMemoryReachedCancel` didn't fire but OOM killer did: the gap between mem_limit and system RAM wasn't enough for jemalloc + brpc overhead.\n\n## Cause B — FE JVM\n\n```bash\n# FE JVM opts (from fe.conf or start script)\nps aux | grep \"PaloFe\" | grep -o \"\\-Xmx[^ ]*\"\n```\n\nCommon: FE heap grows with catalog metadata (many tables\u002Fpartitions). Raise `-Xmx` or reduce `hive_meta_cache_ttl_sec` \u002F catalog refresh frequency.\n\n## Cause D — False Alive\n\nAlive=true means the heartbeat RPC succeeds. This does NOT mean the brpc port (8060) is healthy for data transfer. If queries fail with E1008 while Alive=true:\n\n→ Route to **doris-debug-query** (Cause D — Exchange \u002F brpc)\n→ Check `priority_networks`, `enable_brpc_connection_check`, `reset_rpc_channel`\n→ Do not trust `SHOW BACKENDS` Alive alone\n\n## Source\n\n- `be\u002Fsrc\u002Fruntime\u002Fmemory\u002Fmem_tracker_limiter.cpp`\n- `be\u002Fsrc\u002Fservice\u002Fdoris_main.cpp` — jemalloc init, signal handler\n- `fe\u002F...\u002Fmaster\u002FHeartbeatHandler.java`\n- `be\u002Fsrc\u002Fcommon\u002Fconfig.cpp` — `mem_limit`, `enable_je_purge`, `max_segment_cache_size`\n","# Node Health\n\n## Causes\n\n| ID | Cause | Evidence | Source anchor |\n|----|-------|----------|---------------|\n| A | BE OOM \u002F killed | `dmesg` shows `Killed`; `be.WARNING` MemTrackerLimiter | `mem_tracker_limiter.cpp` |\n| B | FE JVM OOM | GC overhead \u002F heap dump; `fe.out` shows `OutOfMemoryError` | `fe.conf` JVM opts |\n| C | BE crash (SIGSEGV\u002FSIGABRT) | Core dump; `be.out` stacktrace | `doris_main.cpp` signal handler |\n| D | False Alive | `SHOW BACKENDS` Alive=true but queries fail brpc | `heartbeat` vs brpc health |\n| E | FD exhaustion | `Too many open files` in be.WARNING | `ulimit -n` |\n\n## 10 min triage\n\n```bash\n# Memory pressure signals\n.\u002Fscripts\u002Fdoris-debug log-grep be\u002Flog --pack memory\ndmesg -T | grep -i \"killed process\" | tail -5\n\n# FE JVM\njstack $(cat \u002Fpath\u002Fto\u002Ffe.pid) > \u002Ftmp\u002Ffe.jstack\njmap -heap $(cat \u002Fpath\u002Fto\u002Ffe.pid) 2>\u002Fdev\u002Fnull | head -30\n\n# FD count\nls \u002Fproc\u002F$(cat \u002Fpath\u002Fto\u002Fbe.pid)\u002Ffd | wc -l\ncat \u002Fproc\u002F$(cat \u002Fpath\u002Fto\u002Fbe.pid)\u002Flimits | grep \"open files\"\n\n# Resource snapshot\ntop -b -n 1 -p $(cat \u002Fpath\u002Fto\u002Fbe.pid) | head -5\nfree -h\n```\n\n## Cause A — BE OOM\n\nDoris tracks memory via MemTracker, but process RSS exceeds tracked memory due to:\n- jemalloc arena fragmentation (10-20% overhead)\n- brpc buffer pools (outside MemTracker)\n- Thread stacks (~8MB each × thread count)\n\n```bash\n# RSS vs tracked\nps -o rss= -p $BE_PID | awk '{printf \"RSS: %.1f GB\\n\", $1\u002F1024\u002F1024}'\ngrep \"MemTrackerLimiter.*total\" be\u002Flog\u002Fbe.WARNING | tail -1\n```\n\n```properties\n# be.conf — defensive settings\nmem_limit = 70%              # Leave 30% for overhead\nmax_segment_cache_size = 0   # Or cap explicitly\nenable_je_purge = true       # jemalloc dirty page cleanup\n```\n\nIf `ProcessMemoryReachedCancel` didn't fire but OOM killer did: the gap between mem_limit and system RAM wasn't enough for jemalloc + brpc overhead.\n\n## Cause B — FE JVM\n\n```bash\n# FE JVM opts (from fe.conf or start script)\nps aux | grep \"PaloFe\" | grep -o \"\\-Xmx[^ ]*\"\n```\n\nCommon: FE heap grows with catalog metadata (many tables\u002Fpartitions). Raise `-Xmx` or reduce `hive_meta_cache_ttl_sec` \u002F catalog refresh frequency.\n\n## Cause D — False Alive\n\nAlive=true means the heartbeat RPC succeeds. This does NOT mean the brpc port (8060) is healthy for data transfer. If queries fail with E1008 while Alive=true:\n\n→ Route to **doris-debug-query** (Cause D — Exchange \u002F brpc)\n→ Check `priority_networks`, `enable_brpc_connection_check`, `reset_rpc_channel`\n→ Do not trust `SHOW BACKENDS` Alive alone\n\n## Source\n\n- `be\u002Fsrc\u002Fruntime\u002Fmemory\u002Fmem_tracker_limiter.cpp`\n- `be\u002Fsrc\u002Fservice\u002Fdoris_main.cpp` — jemalloc init, signal handler\n- `fe\u002F...\u002Fmaster\u002FHeartbeatHandler.java`\n- `be\u002Fsrc\u002Fcommon\u002Fconfig.cpp` — `mem_limit`, `enable_je_purge`, `max_segment_cache_size`\n",{"name":5,"version":28,"category":29,"description":30},"0.2.0","node","Use for Doris FE\u002FBE OOM, crash, or false Alive. BE: MemTrackerLimiter lines in be.WARNING; FE: JVM heap \u002F jstack. Distinguish heartbeat Alive from query\u002Fbrpc serving health.\n","main","3f49b0021e7900d691790da5feec34034826b970","skills\u002Fdoris-debug\u002Fnode",15,"https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills","https:\u002F\u002Fdoris.apache.org","https:\u002F\u002Fgithub.com\u002Fapache","https:\u002F\u002Fwww.apache.org\u002F","2026-11-04 15:50:17",{"source":8,"skillName":5,"commands":41,"prompt":51,"zipAvailable":52},[42,45,48],{"tool":43,"command":44},"npx","npx skills add apache\u002Fdoris-skills --skill doris-debug-node",{"tool":46,"command":47},"bunx","bunx skills add apache\u002Fdoris-skills --skill doris-debug-node",{"tool":49,"command":50},"pnpm","pnpm dlx skills add apache\u002Fdoris-skills --skill doris-debug-node","安装技能，技能地址：https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fnode\u002FSKILL.md",true,[54,60,66,70,76,80,84,88,92],{"path":55,"resourceType":56,"resourceTypeDesc":57,"sizeBytes":58,"sourceHtmlUrl":59},"agents\u002Fopenai.yaml","REFERENCE","参考文档",303,"https:\u002F\u002Fgithub.com\u002Fcolonelpanic8\u002Fdotfiles\u002Fblob\u002Fmaster\u002Fdotfiles\u002Fagents\u002Fskills\u002Fgh-address-comments\u002Fagents\u002Fopenai.yaml",{"path":61,"resourceType":62,"resourceTypeDesc":63,"sizeBytes":64,"sourceHtmlUrl":65},"assets\u002Fgithub-small.svg","ASSET","资产文件",853,"https:\u002F\u002Fgithub.com\u002Fcolonelpanic8\u002Fdotfiles\u002Fblob\u002Fmaster\u002Fdotfiles\u002Fagents\u002Fskills\u002Fgh-address-comments\u002Fassets\u002Fgithub-small.svg",{"path":67,"resourceType":62,"resourceTypeDesc":63,"sizeBytes":68,"sourceHtmlUrl":69},"assets\u002Fgithub.png",1838,"https:\u002F\u002Fgithub.com\u002Fcolonelpanic8\u002Fdotfiles\u002Fblob\u002Fmaster\u002Fdotfiles\u002Fagents\u002Fskills\u002Fgh-address-comments\u002Fassets\u002Fgithub.png",{"path":71,"resourceType":72,"resourceTypeDesc":73,"sizeBytes":74,"sourceHtmlUrl":75},"LICENSE.txt","LICENSE","许可证",11357,"https:\u002F\u002Fgithub.com\u002Fcolonelpanic8\u002Fdotfiles\u002Fblob\u002Fmaster\u002Fdotfiles\u002Fagents\u002Fskills\u002Fgh-address-comments\u002FLICENSE.txt",{"path":77,"resourceType":56,"resourceTypeDesc":57,"sizeBytes":78,"sourceHtmlUrl":79},"references\u002Fcase-001-be-oom-memtracker.md",1242,"https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fnode\u002Freferences\u002Fcase-001-be-oom-memtracker.md",{"path":81,"resourceType":56,"resourceTypeDesc":57,"sizeBytes":82,"sourceHtmlUrl":83},"references\u002Fcase-002-filecache-lru-leak.md",3303,"https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fnode\u002Freferences\u002Fcase-002-filecache-lru-leak.md",{"path":85,"resourceType":56,"resourceTypeDesc":57,"sizeBytes":86,"sourceHtmlUrl":87},"references\u002Fcase-003-be-scanner-pileup-memory.md",5001,"https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fnode\u002Freferences\u002Fcase-003-be-scanner-pileup-memory.md",{"path":89,"resourceType":56,"resourceTypeDesc":57,"sizeBytes":90,"sourceHtmlUrl":91},"references\u002Fcase-004-fe-bdbje-corruption.md",3605,"https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fnode\u002Freferences\u002Fcase-004-fe-bdbje-corruption.md",{"path":93,"resourceType":94,"resourceTypeDesc":95,"sizeBytes":96,"sourceHtmlUrl":97},"scripts\u002Ffetch_comments.py","SCRIPT","脚本",6537,"https:\u002F\u002Fgithub.com\u002Fcolonelpanic8\u002Fdotfiles\u002Fblob\u002Fmaster\u002Fdotfiles\u002Fagents\u002Fskills\u002Fgh-address-comments\u002Fscripts\u002Ffetch_comments.py",[99,129,140,161,173,182],{"skillNo":100,"name":101,"nameZh":6,"description":102,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":103,"categories":104,"keywords":110,"publishedAt":23},"01M6M1B6Y0NBNVC1WN8QEVGZ28","doris-pr-description","Write, rewrite, or check the title and description of an Apache Doris pull request against the Doris PR standard. Takes the facts from the handoff file that development left when there is one, and collects them from the diff, commits, linked issue, and existing tests otherwise; classifies the PR type, fills that type's required fields, drafts the issue a Feature needs, validates the draft with a bundled checker, and creates or updates the PR on GitHub only after the user confirms. Use whenever the user wants to open, create, submit, or update a Doris PR; write, fix, or improve a PR title or description; prepare a branch for review; rewrite an existing PR's description for comparison; or check whether a description meets the standard. Also use for short requests in any language, such as \"open a PR\", \"write the PR description\", or \"is this PR description good enough?\", even when the standard is not mentioned.","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-pr-description\u002FSKILL.md",[105],{"categoryNo":106,"categoryName":107,"taxonomyType":108,"taxonomyTypeDesc":109},"01JBSEEDCAT000000000000023","Skill与智能体开发","SCENARIO","使用场景",[111,112,20,113,114,115,116,117,118,9,119,120,121,122,123,124,125,126,127,128],"pr","pr description","doris pr description","open","request","updates","create","update","checker","improve","branch","short","fix","good","only","pr title","submit","review",{"skillNo":130,"name":131,"nameZh":6,"description":6,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":132,"categories":133,"keywords":135,"publishedAt":23},"01M6M1B0334YPC8P5KQ11V0JX8","develop-with-evidence","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdevelop-with-evidence\u002FSKILL.md",[134],{"categoryNo":106,"categoryName":107,"taxonomyType":108,"taxonomyTypeDesc":109},[136,137,138,139],"develop with evidence","with","evidence","develop",{"skillNo":141,"name":142,"nameZh":6,"description":143,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":144,"categories":145,"keywords":150,"publishedAt":23},"01M6ACTH4YX29N7GXTT61H6WTK","doris-repo-review","Review an Apache Doris PR from a local clone with the same multi-agent, shared-ledger convergence workflow as the CI Code Review Runner. Use when the user supplies a PR to `\u002Fdoris-repo-review`, asks to review a Doris PR locally, or asks for the CI-style review flow. Safely align only the current worktree to the exact PR head, refuse to disturb tracked local changes, write equivalent English and Chinese review documents with verified path-line anchors, and never build, test, or edit source. Treat a review as pipeline-equivalent only when an explicitly selected qualified reviewer uses a supported effort (xhigh or max, plus ultra for Codex), preferring GPT-6 Astra on Codex and Fable 5.1 on Claude Code. After a converged APPROVE result, automatically post one machine-readable PASS comment bound to the reviewed commit.","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-repo-review\u002FSKILL.md",[146,149],{"categoryNo":147,"categoryName":148,"taxonomyType":108,"taxonomyTypeDesc":109},"01JBSEEDCAT000000000000007","代码审查",{"categoryNo":106,"categoryName":107,"taxonomyType":108,"taxonomyTypeDesc":109},[151,20,128,9,152,153,154,155,156,157,111,158,159,160],"doris repo review","codex","code review","workflow","test","commit","documents","code","gpt","worktree",{"skillNo":162,"name":163,"nameZh":6,"description":164,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":165,"categories":166,"keywords":168,"publishedAt":23},"01M6ACTEQZ2S4PDZ2MW3C12HJ4","doris-profile-reader","Interpret Apache Doris query runtime profiles, especially profile bottleneck triage, misleading wait counters, per-operator metric priority, scan, join-order\u002Fruntime-filter analysis, and evidence-bounded performance explanations. Use when given a Doris profile, query id, profile URL\u002Ftext, or a request to explain Doris query performance.","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-profile-reader\u002FSKILL.md",[167],{"categoryNo":106,"categoryName":107,"taxonomyType":108,"taxonomyTypeDesc":109},[169,20,170,171,9,172],"doris profile reader","performance","triage","operator",{"skillNo":174,"name":175,"nameZh":6,"description":176,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":177,"categories":178,"keywords":179,"publishedAt":23},"01M6ACTCZC9VCV91Q0RVNZC2R5","doris-debug-tablet","Use for Doris tablet\u002Freplica health, version skew, clone backlog, disk balance, and tablet repair. Commands: SHOW PROC tablet_health, SHOW TABLET, ADMIN REPAIR.","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Ftablet\u002FSKILL.md",[],[21,20,180,19,181],"doris debug tablet","admin",{"skillNo":183,"name":184,"nameZh":6,"description":185,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":186,"categories":187,"keywords":188,"publishedAt":23},"01M6ACTAVGGVYTAWTPMMZYS71J","doris-debug-resource-isolation","Use for Doris Workload Group \u002F resource tag queue starvation, CPU\u002Fmemory isolation leaks, and workload policy debugging. Commands: SHOW WORKLOAD GROUPS, EXPLAIN resource.","https:\u002F\u002Fgithub.com\u002Fapache\u002Fdoris-skills\u002Fblob\u002Fmain\u002Fskills\u002Fdoris-debug\u002Fresource-isolation\u002FSKILL.md",[],[19,20,21,189,190,191,192,193],"doris debug resource isolation","memory","workload","debugging","policy"]