0.8.3 parallel Workflow run failed #8731

huangyafei · 2024-09-24T14:21:32Z

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Dify version

0.8.3

Cloud or Self Hosted

Cloud, Self Hosted (Docker)

Steps to reproduce

I have found a similar Issue #8355 and a related PR #8378. But, this PR only fixed the problem within if/else nodes.

Currently, I'm encountering a new issue:

Case 1

DSL:

app:
  description: ''
  icon: 🤖
  icon_background: '#FFEAD5'
  mode: workflow
  name: Test Workflow
  use_icon_as_answer_icon: false
kind: app
version: 0.1.2
workflow:
  conversation_variables: []
  environment_variables: []
  features:
    file_upload:
      image:
        enabled: false
        number_limits: 3
        transfer_methods:
        - local_file
        - remote_url
    opening_statement: ''
    retriever_resource:
      enabled: false
    sensitive_word_avoidance:
      enabled: false
    speech_to_text:
      enabled: false
    suggested_questions: []
    suggested_questions_after_answer:
      enabled: false
    text_to_speech:
      enabled: false
      language: ''
      voice: ''
  graph:
    edges:
    - data:
        isInIteration: false
        sourceType: llm
        targetType: llm
      id: 1727144308127-source-1727145030743-target
      selected: false
      source: '1727144308127'
      sourceHandle: source
      target: '1727145030743'
      targetHandle: target
      type: custom
      zIndex: 0
    - data:
        isInIteration: false
        sourceType: llm
        targetType: llm
      id: 1727148810092-source-1727148873972-target
      selected: false
      source: '1727148810092'
      sourceHandle: source
      target: '1727148873972'
      targetHandle: target
      type: custom
      zIndex: 0
    - data:
        isInIteration: false
        sourceType: llm
        targetType: llm
      id: 1727148590580-source-1727145030743-target
      selected: false
      source: '1727148590580'
      sourceHandle: source
      target: '1727145030743'
      targetHandle: target
      type: custom
      zIndex: 0
    - data:
        isInIteration: false
        sourceType: llm
        targetType: llm
      id: 1727148681332-source-1727145030743-target
      selected: false
      source: '1727148681332'
      sourceHandle: source
      target: '1727145030743'
      targetHandle: target
      type: custom
      zIndex: 0
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      sourceHandle: source
      target: '1727172656753'
      targetHandle: target
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        targetType: end
      id: 1727172656753-source-1727149196020-target
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      source: '1727142281355'
      sourceHandle: source
      target: '1727148810092'
      targetHandle: target
      type: custom
      zIndex: 0
    nodes:
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        selected: false
        title: 开始
        type: start
        variables:
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          max_length: 5000
          options: []
          required: true
          type: paragraph
          variable: test1
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          max_length: 5000
          options: []
          required: true
          type: paragraph
          variable: test2
        - label: test2
          max_length: 5000
          options: []
          required: true
          type: paragraph
          variable: test3
      height: 142
      id: '1727142281355'
      position:
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      positionAbsolute:
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        y: 344.318673344686
      selected: false
      sourcePosition: right
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      width: 244
    - data:
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        model:
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          provider: openai
        prompt_template:
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          text: '{{#1727142281355.test1#}}'
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        variables: []
        vision:
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            {{#1727148681332.text#}}

            {{#1727148740287.text#}}'
        selected: false
        title: A
        type: llm
        variables: []
        vision:
          configs:
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          enabled: true
      height: 98
      id: '1727145030743'
      position:
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        y: 270.6495585970275
      positionAbsolute:
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        y: 270.6495585970275
      selected: true
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    - data:
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          variable_selector: []
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        model:
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          mode: chat
          name: gpt-4o
          provider: openai
        prompt_template:
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          role: system
          text: '{{#1727142281355.test1#}}'
        selected: false
        title: '2'
        type: llm
        variables: []
        vision:
          configs:
            detail: high
          enabled: true
      height: 98
      id: '1727148590580'
      position:
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        y: 138.1527613772792
      positionAbsolute:
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        y: 138.1527613772792
      selected: false
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    - data:
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          variable_selector: []
        desc: ''
        model:
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          mode: chat
          name: gpt-4o
          provider: openai
        prompt_template:
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          text: '{{#1727142281355.test1#}}'
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        title: '3'
        type: llm
        variables: []
        vision:
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            detail: high
          enabled: true
      height: 98
      id: '1727148681332'
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        y: 275.9787359408662
      selected: false
      sourcePosition: right
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    - data:
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        model:
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          name: gpt-4o
          provider: openai
        prompt_template:
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        title: '4'
        type: llm
        variables: []
        vision:
          configs:
            detail: high
          enabled: true
      height: 98
      id: '1727148740287'
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        y: 433.9787359408662
      selected: false
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      width: 244
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        model:
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          mode: chat
          name: gpt-4o
          provider: openai
        prompt_template:
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          role: system
          text: '{{#1727142281355.test1#}}'
        selected: false
        title: '5'
        type: llm
        variables: []
        vision:
          configs:
            detail: high
          enabled: true
      height: 98
      id: '1727148810092'
      position:
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        y: 591.9787359408663
      positionAbsolute:
        x: 618.0908948235066
        y: 591.9787359408663
      selected: false
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    - data:
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        desc: ''
        model:
          completion_params:
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          mode: chat
          name: gpt-4o
          provider: openai
        prompt_template:
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          role: system
          text: '{{#1727142281355.test2#}}

            {{#1727148810092.text#}}'
        selected: false
        title: B
        type: llm
        variables: []
        vision:
          configs:
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          enabled: true
      height: 98
      id: '1727148873972'
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        y: 566.4133478867913
      selected: false
      sourcePosition: right
      targetPosition: left
      type: custom
      width: 244
    - data:
        desc: ''
        outputs:
        - value_selector:
          - '1727172656753'
          - text
          variable: text
        selected: false
        title: 结束
        type: end
      height: 90
      id: '1727149196020'
      position:
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    - data:
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        prompt_template:
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          role: system
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        selected: false
        title: LLM 8
        type: llm
        variables: []
        vision:
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Case 2

DSL:

app:
  description: ''
  icon: 🤖
  icon_background: '#FFEAD5'
  mode: workflow
  name: Test Workflow
  use_icon_as_answer_icon: false
kind: app
version: 0.1.2
workflow:
  conversation_variables: []
  environment_variables: []
  features:
    file_upload:
      image:
        enabled: false
        number_limits: 3
        transfer_methods:
        - local_file
        - remote_url
    opening_statement: ''
    retriever_resource:
      enabled: false
    sensitive_word_avoidance:
      enabled: false
    speech_to_text:
      enabled: false
    suggested_questions: []
    suggested_questions_after_answer:
      enabled: false
    text_to_speech:
      enabled: false
      language: ''
      voice: ''
  graph:
    edges:
    - data:
        isInIteration: false
        sourceType: llm
        targetType: llm
      id: 1727144308127-source-1727145030743-target
      selected: false
      source: '1727144308127'
      sourceHandle: source
      target: '1727145030743'
      targetHandle: target
      type: custom
      zIndex: 0
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        sourceType: llm
        targetType: llm
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      source: '1727148810092'
      sourceHandle: source
      target: '1727148873972'
      targetHandle: target
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      zIndex: 0
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      zIndex: 0
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      source: '1727148681332'
      sourceHandle: source
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      targetHandle: target
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          role: system
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        type: llm
        variables: []
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✔️ Expected Behavior

No response

❌ Actual Behavior

No response

The text was updated successfully, but these errors were encountered:

dosubot · 2024-09-24T14:24:11Z

I found a similar issue and discussion that might be relevant to your problem:

Error in item: Invalid variable (open) - This discussion addresses a similar issue with variables not being found.
This is a major issue with parallel execution in the workflow (open) - This discussion talks about issues with parallel execution in workflows.

The issue you're encountering with the parallel workflow run failing in Dify version 0.8.3 is likely due to the query variable not being properly initialized or passed to the nodes that require it. Specifically, the nodes tt and tt-2 use the query variable in their template, but there is no evidence that this variable is being set or passed correctly during the test execution.

Here is the relevant part of the code where the query variable is expected:

{
    "data": {
        "template": "{{ arg1 }} 123",
        "title": "template transform",
        "type": "template-transform",
        "variables": [{"value_selector": ["sys", "query"], "variable": "arg1"}],
    },
    "id": "tt",
},
{
    "data": {
        "template": "{{ arg1 }} 321",
        "title": "template transform",
        "type": "template-transform",
        "variables": [{"value_selector": ["sys", "query"], "variable": "arg1"}],
    },
    "id": "tt-2",
}

To fix this issue, ensure that the query variable is properly initialized in the VariablePool when the GraphEngine is instantiated. For example:

variable_pool = VariablePool(
    system_variables={
        SystemVariableKey.QUERY: "your query here",
        SystemVariableKey.FILES: [],
        SystemVariableKey.CONVERSATION_ID: "abababa",
        SystemVariableKey.USER_ID: "aaa",
    },
    user_inputs={"query": "your query here"},
)

Make sure to replace "your query here" with the actual query you want to test with. This should ensure that the query variable is available to all nodes that require it, preventing the variable not found error ^[1]^[2].

To continue talking to Dosu, mention @dosu.

iamjoel · 2024-09-25T02:44:59Z

I debug the code, and find that the last node's output in parallel is missing. We will resolve it later.

huangyafei · 2024-09-25T02:55:44Z

I debug the code, and find that the last node's output in parallel is missing. We will resolve it later.

I've noticed that the parallel nodes are being processed in the wrong order, or rather, it looks like the system is misinterpreting the order in which the parallel nodes are being processed.

For example, in the first graph, the correct order should be Start -> 1, 2, 3, 4, 5 -> A&B. But looking at the logs on the right side of the graph, the workflow runs in the order Start -> 1, 2, A, 3, 4, 5.

Hope this helps to solve the problem.

huangyafei · 2024-09-25T02:58:41Z

I debug the code, and find that the last node's output in parallel is missing. We will resolve it later.

Node A should run after all nodes 1, 2, 3, 4 have finished running. But currently, node A is running after nodes 1 and 2 have run, so it can't find the output variable for node 3.

iamjoel · 2024-09-25T03:00:45Z

I debug the code, and find that the last node's output in parallel is missing. We will resolve it later.

I've noticed that the parallel nodes are being processed in the wrong order, or rather, it looks like the system is misinterpreting the order in which the parallel nodes are being processed.

For example, in the first graph, the correct order should be Start -> 1, 2, 3, 4, 5 -> A&B. But looking at the logs on the right side of the graph, the workflow runs in the order Start -> 1, 2, A, 3, 4, 5.

Hope this helps to solve the problem.

@zxhlyh @takatost

iamjoel · 2024-09-25T07:08:21Z

@huangyafei 1,2,3,4,5 -> A & B is partial convergence in parallel. We don't support that partial convergence now. We support C-> 1,2,3,4 -> A; 5 -> B.
You can temporary fix this issus by adding a node before 1,2,3,4.

dosubot bot added the 🌊 feat:workflow Workflow related stuff. label Sep 24, 2024

crazywoola assigned iamjoel Sep 24, 2024

iamjoel assigned zxhlyh and unassigned iamjoel and zxhlyh Sep 25, 2024

crazywoola closed this as not planned Won't fix, can't repro, duplicate, stale Sep 25, 2024

dosubot bot mentioned this issue Sep 26, 2024

Firecrawl started throwing the error: 'Failed to invoke tool: unhashable type: 'dict'.' #8792

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0.8.3 parallel Workflow run failed #8731

0.8.3 parallel Workflow run failed #8731

huangyafei commented Sep 24, 2024

dosubot bot commented Sep 24, 2024

iamjoel commented Sep 25, 2024

huangyafei commented Sep 25, 2024

huangyafei commented Sep 25, 2024

iamjoel commented Sep 25, 2024

iamjoel commented Sep 25, 2024

0.8.3 parallel Workflow run failed #8731

0.8.3 parallel Workflow run failed #8731

Comments

huangyafei commented Sep 24, 2024

Self Checks

Dify version

Cloud or Self Hosted

Steps to reproduce

Case 1

DSL:

Case 2

DSL:

✔️ Expected Behavior

❌ Actual Behavior

dosubot bot commented Sep 24, 2024

iamjoel commented Sep 25, 2024

huangyafei commented Sep 25, 2024

huangyafei commented Sep 25, 2024

iamjoel commented Sep 25, 2024

iamjoel commented Sep 25, 2024