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Caution Review failedThe pull request is closed. WalkthroughThe update refactors workflow classes and utility functions to improve error handling, input validation, and concurrency control. Logging is standardized, XML escaping is added, and function signatures are updated for robustness. Concurrency limits are introduced for thread and message processing, and database/resource cleanup is more explicit across workflows. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant MainWorkflow
participant ZeroWorkflow
participant ThreadWorkflow
participant Utils
User->>MainWorkflow: Trigger run(event, step)
MainWorkflow->>Utils: Validate GOOGLE_S_ACCOUNT
MainWorkflow->>MainWorkflow: Create/reuse workflow instance
MainWorkflow->>ZeroWorkflow: Start ZeroWorkflow (batched, concurrency 5)
ZeroWorkflow->>Utils: Retrieve connection data, Gmail history
ZeroWorkflow->>ThreadWorkflow: Start ThreadWorkflow (batched, concurrency 3)
ThreadWorkflow->>Utils: Validate/process messages, escape XML, generate labels
ThreadWorkflow->>Utils: Generate summary, get embedding vector
ThreadWorkflow->>Utils: Cleanup resources
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PR Summary
Enhanced email processing pipeline with improved error handling and performance optimizations in apps/server/src/pipelines.ts.
- Added validation for
GOOGLE_S_ACCOUNTenvironment variable and user-defined labels - Implemented batched processing with concurrency controls to prevent resource exhaustion
- Enhanced XML escaping for message content to prevent malformed data
- Added proper database connection cleanup to prevent memory leaks
- Improved error logging with detailed workflow step context
1 file reviewed, 2 comments
Edit PR Review Bot Settings | Greptile
| ]; | ||
| log('[ZERO_WORKFLOW] Total threads to process:', threadsToProcess.length); | ||
| return threadsToProcess; | ||
| }, | ||
| ); |
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style: Consider using Promise.allSettled instead of Promise.all to prevent a single failure from stopping the entire batch processing
| ); | ||
| } | ||
|
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||
| this.ctx.waitUntil(conn.end()); |
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style: Database connection cleanup should be in a finally block to ensure it runs even if an error occurs
| this.ctx.waitUntil(conn.end()); | |
| try { | |
| // ... existing try block code ... | |
| } catch (error) { | |
| log('[THREAD_WORKFLOW] Error in workflow:', error); | |
| log('[THREAD_WORKFLOW] Error details:', { | |
| connectionId: event.payload.connectionId, | |
| threadId: event.payload.threadId, | |
| providerId: event.payload.providerId, | |
| errorMessage: error instanceof Error ? error.message : String(error), | |
| errorStack: error instanceof Error ? error.stack : undefined, | |
| }); | |
| throw error; | |
| } finally { | |
| this.ctx.waitUntil(conn.end()); | |
| } |
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| }, | ||
| ); | ||
| const embeddingVector = embeddingResponse.data[0]; | ||
| const embeddingVector = (embeddingResponse as any).data?.[0]; |
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The type assertion (embeddingResponse as any).data?.[0] bypasses TypeScript's type checking system. Consider defining a proper interface for the embedding response or using unknown with appropriate type guards instead. This would maintain type safety while still allowing access to the nested properties in a controlled manner:
interface EmbeddingResponse {
data?: number[][];
}
const embeddingVector = (embeddingResponse as EmbeddingResponse).data?.[0];This approach provides better documentation of the expected structure and prevents potential runtime errors from unchecked property access.
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Bug: Workflow Processing and Database Connection Leaks
Two issues are present in the ZeroWorkflow:
- Thread Processing Flag Leak: The
gmail_processing_threadsflag, which prevents concurrent processing of the same thread, is not cleared after aTHREAD_WORKFLOWinstance successfully completes. This prevents future processing of the affected threads and leads to indefinite accumulation of stale flags. - Database Connection Leak: The database connection (
conn) is not properly closed if an error occurs within the maintryblock, leading to a resource leak.
apps/server/src/pipelines.ts#L169-L399
Zero/apps/server/src/pipelines.ts
Lines 169 to 399 in fbb8e9e
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