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langchain-ai / langchainjs

🦜🔗 Build context-aware reasoning applications 🦜🔗
https://js.langchain.com/docs/
MIT License
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Clear `AsyncLocalStorage` when calling callbacks #7168

Closed drewmacneil closed 1 day ago

drewmacneil commented 5 days ago

Checked other resources

Example Code

Given the following graph and callbacks:

  const logger = RunnableLambda.from(async (_, config) => {
    console.log("SECOND CONFIG", config);
    return "bar";
  });
  class EvalCallback extends BaseTracer {
    name = "eval";

    protected async persistRun(): Promise<void> {
      await logger.batch(["1", "2", "3"]);
    }
  }
  const StateAnnotation = Annotation.Root({});
  const graph = new StateGraph(StateAnnotation)
    .addNode("foo", async (_, config) => {
      console.log("FIRST CONFIG", config);
      const foo = RunnableLambda.from(async () => {
        return "foo";
      });
      await foo.invoke("foo");
      return "bar";
    })
    .addEdge("__start__", "foo")
    .compile();

Error Message and Stack Trace (if applicable)

No response

Description

If you execute the above code the following way:

  const runnable = RunnableLambda.from(async (args) => args))
  .pipe(RunnablePassthrough.assign({ graphOutput: graph }))
  .pipe(RunnableLambda.from(async (args) => args.graphOutput));

await runnable.invoke(args, { callbacks: [new EvalCallback()] });

I observe that the logger chain is reported by LangSmith as a sibling node to the LangGraph node and not as its own independent root. Given that chain is executed within a callback, I'd have expected it to be logged as its own root.

System Info

yarn info langchain
yarn info v1.22.22
{
  name: 'langchain',
  'dist-tags': {
    next: '0.3.2-rc.0',
    'tag-for-publishing-older-releases': '0.2.20',
    latest: '0.3.5'
  },
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  },
  bugs: {
    url: 'https://github.com/langchain-ai/langchainjs/issues'
  },
  author: {
    name: 'LangChain'
  },
  license: 'MIT',
  homepage: 'https://github.com/langchain-ai/langchainjs/tree/main/langchain/',
  keywords: [
    'llm',
    'ai',
    'gpt3',
    'chain',
    'prompt',
    'prompt engineering',
    'chatgpt',
    'machine learning',
    'ml',
    'openai',
    'embeddings',
    'vectorstores'
  ],
  repository: {
    type: 'git',
    url: 'git+ssh://git@github.com/langchain-ai/langchainjs.git'
  },
  description: 'Typescript bindings for langchain',
  maintainers: [
    {
      name: 'nfcampos',
      email: 'nuno@boringbits.io'
    },
    {
      name: 'jacoblee93',
      email: 'jacoblee93@gmail.com'
    },
    {
      name: 'andrewnguonly',
      email: 'andrewnguonly@gmail.com'
    },
    {
      name: 'davidduong',
      email: 'david@duong.cz'
    },
    {
      name: 'hwchase17',
      email: 'hw.chase.17@gmail.com'
    },
    {
      name: 'basproul',
      email: 'braceasproul@gmail.com'
    }
  ],
  readmeFilename: 'README.md',
  version: '0.3.5',
  type: 'module',
  engines: {
    node: '>=18'
  },
  main: './index.js',
  types: './index.d.ts',
  scripts: {
    build: 'yarn turbo:command build:internal --filter=langchain',
    'build:internal': 'yarn lc_build --create-entrypoints --pre --tree-shaking --gen-maps',
    'lint:eslint': 'NODE_OPTIONS=--max-old-space-size=4096 eslint --cache --ext .ts,.js src/',
    'lint:dpdm': 'dpdm --exit-code circular:1 --no-warning --no-tree src/*.ts src/**/*.ts',
    lint: 'yarn lint:eslint && yarn lint:dpdm',
    'lint:fix': 'yarn lint:eslint --fix && yarn lint:dpdm',
    precommit: 'lint-staged',
    clean: 'rm -rf .turbo dist/',
    prepack: 'yarn build',
    release: 'release-it --only-version --config .release-it.json',
    test: 'NODE_OPTIONS=--experimental-vm-modules jest --testPathIgnorePatterns=\\.int\\.test.ts --testTimeout 30000 --maxWorkers=50%',
    'test:watch': 'NODE_OPTIONS=--experimental-vm-modules jest --watch --testPathIgnorePatterns=\\.int\\.test.ts',
    'test:integration': 'NODE_OPTIONS=--experimental-vm-modules jest --testPathPattern=\\.int\\.test.ts --testTimeout 100000 --maxWorkers=50%',
    'test:single': 'NODE_OPTIONS=--experimental-vm-modules yarn run jest --config jest.config.cjs --testTimeout 100000',
    format: 'prettier --config .prettierrc --write "src"',
    'format:check': 'prettier --config .prettierrc --check "src"'
  },
  devDependencies: {
    '@faker-js/faker': '^7.6.0',
    '@jest/globals': '^29.5.0',
    '@langchain/anthropic': '*',
    '@langchain/aws': '*',
    '@langchain/cohere': '*',
    '@langchain/core': 'workspace:*',
    '@langchain/google-genai': '*',
    '@langchain/google-vertexai': '*',
    '@langchain/groq': '*',
    '@langchain/mistralai': '*',
    '@langchain/ollama': '*',
    '@langchain/scripts': '>=0.1.0 <0.2.0',
    '@swc/core': '^1.3.90',
    '@swc/jest': '^0.2.29',
    '@tsconfig/recommended': '^1.0.2',
    '@types/handlebars': '^4.1.0',
    '@types/html-to-text': '^9',
    '@types/js-yaml': '^4',
    '@types/jsdom': '^21.1.1',
    '@types/uuid': '^9',
    '@types/ws': '^8',
    '@typescript-eslint/eslint-plugin': '^5.58.0',
    '@typescript-eslint/parser': '^5.58.0',
    axios: '^0.26.0',
    cheerio: '1.0.0-rc.12',
    dotenv: '^16.0.3',
    dpdm: '^3.12.0',
    eslint: '^8.33.0',
    'eslint-config-airbnb-base': '^15.0.0',
    'eslint-config-prettier': '^8.6.0',
    'eslint-plugin-import': '^2.27.5',
    'eslint-plugin-jest': '^27.6.0',
    'eslint-plugin-no-instanceof': '^1.0.1',
    'eslint-plugin-prettier': '^4.2.1',
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    'release-it': '^17.6.0',
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    rollup: '^3.19.1',
    'ts-jest': '^29.1.0',
    typeorm: '^0.3.20',
    typescript: '~5.1.6',
    wikipedia: '^2.1.2'
  },
  peerDependencies: {
    '@langchain/anthropic': '*',
    '@langchain/aws': '*',
    '@langchain/cohere': '*',
    '@langchain/core': '>=0.2.21 <0.4.0',
    '@langchain/google-genai': '*',
    '@langchain/google-vertexai': '*',
    '@langchain/groq': '*',
    '@langchain/mistralai': '*',
    '@langchain/ollama': '*',
    axios: '*',
    cheerio: '*',
    handlebars: '^4.7.8',
    peggy: '^3.0.2',
    typeorm: '*'
  },
  peerDependenciesMeta: {
    '@langchain/anthropic': {
      optional: true
    },
    '@langchain/aws': {
      optional: true
    },
    '@langchain/cohere': {
      optional: true
    },
    '@langchain/google-genai': {
      optional: true
    },
    '@langchain/google-vertexai': {
      optional: true
    },
    '@langchain/groq': {
      optional: true
    },
    '@langchain/mistralai': {
      optional: true
    },
    '@langchain/ollama': {
      optional: true
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    axios: {
      optional: true
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    cheerio: {
      optional: true
    },
    handlebars: {
      optional: true
    },
    peggy: {
      optional: true
    },
    typeorm: {
      optional: true
    }
  },
  dependencies: {
    '@langchain/openai': '>=0.1.0 <0.4.0',
    '@langchain/textsplitters': '>=0.0.0 <0.2.0',
    'js-tiktoken': '^1.0.12',
    'js-yaml': '^4.1.0',
    jsonpointer: '^5.0.1',
    langsmith: '^0.2.0',
    'openapi-types': '^12.1.3',
    'p-retry': '4',
    uuid: '^10.0.0',
    yaml: '^2.2.1',
    zod: '^3.22.4',
    'zod-to-json-schema': '^3.22.3'
  },
  publishConfig: {
    access: 'public'
  },
  exports: {
    './load': {
      types: {
        import: './load.d.ts',
        require: './load.d.cts',
        default: './load.d.ts'
      },
      import: './load.js',
      require: './load.cjs'
    },
    './load/serializable': {
      types: {
        import: './load/serializable.d.ts',
        require: './load/serializable.d.cts',
        default: './load/serializable.d.ts'
      },
      import: './load/serializable.js',
      require: './load/serializable.cjs'
    },
    './agents': {
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        import: './agents.d.ts',
        require: './agents.d.cts',
        default: './agents.d.ts'
      },
      import: './agents.js',
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    './agents/load': {
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      },
      import: './agents/load.js',
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    },
    './agents/toolkits': {
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        import: './agents/toolkits.d.ts',
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    './agents/toolkits/sql': {
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        require: './agents/toolkits/sql.d.cts',
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    },
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      types: {
        import: './agents/format_scratchpad.d.ts',
        require: './agents/format_scratchpad.d.cts',
        default: './agents/format_scratchpad.d.ts'
      },
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      require: './agents/format_scratchpad.cjs'
    },
    './agents/format_scratchpad/openai_tools': {
      types: {
        import: './agents/format_scratchpad/openai_tools.d.ts',
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      import: './agents/format_scratchpad/log.js',
      require: './agents/format_scratchpad/log.cjs'
    },
    './agents/format_scratchpad/xml': {
      types: {
        import: './agents/format_scratchpad/xml.d.ts',
        require: './agents/format_scratchpad/xml.d.cts',
        default: './agents/format_scratchpad/xml.d.ts'
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      import: './agents/format_scratchpad/xml.js',
      require: './agents/format_scratchpad/xml.cjs'
    },
    './agents/format_scratchpad/log_to_message': {
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        require: './agents/format_scratchpad/log_to_message.d.cts',
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      },
      import: './agents/format_scratchpad/log_to_message.js',
      require: './agents/format_scratchpad/log_to_message.cjs'
    },
    './agents/react/output_parser': {
      types: {
        import: './agents/react/output_parser.d.ts',
        require: './agents/react/output_parser.d.cts',
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      import: './agents/react/output_parser.js',
      require: './agents/react/output_parser.cjs'
    },
    './agents/xml/output_parser': {
      types: {
        import: './agents/xml/output_parser.d.ts',
        require: './agents/xml/output_parser.d.cts',
        default: './agents/xml/output_parser.d.ts'
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      types: {
        import: './tools.d.ts',
        require: './tools.d.cts',
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      import: './tools.js',
      require: './tools.cjs'
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        import: './tools/chain.d.ts',
        require: './tools/chain.d.cts',
        default: './tools/chain.d.ts'
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Platform: macOS Node: v20.15.0 Yarn: 1.22.22

dosubot[bot] commented 5 days ago

Hey @drewmacneil! I'm here to help you with any bugs, questions, or contributions. Let's tackle this together!

The issue you're encountering seems to be related to how the LangSmith logging system is classifying the logger chain as a sibling node rather than an independent root when executed within a callback. This behavior might be due to the way AsyncLocalStorage is managing the execution context and not clearing it properly when callbacks are invoked.

In LangChain.js, AsyncLocalStorage is used to manage context variables that are scoped to the execution context of runnables. This allows for context isolation and inheritance, which is useful in asynchronous environments [1]. However, if the context is not cleared or reset when entering a new execution context, such as a callback, it might lead to unexpected behavior in how nodes are logged or classified.

To address this, you might need to ensure that the context is explicitly cleared or reset when entering the callback execution. This can be done by managing the AsyncLocalStorage context manually or by ensuring that the callback execution is treated as a new root context. This would help in correctly classifying the logger chain as an independent root in the logging system.

If this approach does not resolve the issue, further investigation into how the LangSmith system determines the hierarchy of nodes and chains might be necessary, as this information is not fully detailed in the available context.

To continue talking to Dosu, mention @dosu.