fix(clp-package): Remove faulty error handling for parsing archive compression stats.

[haiqi96]

Description

Fix a bug introduced by #634.

The previous changed intended to catch empty strings (actually empty lines) in between the clp archive stat output, but made a few mistakes.

1. The empty line will not be '', it will only be b''.
2. Based on my experiment, the line from stdout.readline() will never be None. Even if the process terminates, stdout.readline() will keep reading b''.
3. The "empty line" we intended to catch should not be '', but '\n' instead.

As a result, the change in #634 will cause the compression worker to stuck in the while-continue loop, causing compression job to hang.

For 3, since it will anyway be a non-empty line, and will be caught by Json decoding, we don;t need to specifically catch "\n" in our code. After all, CLP and CLP-S are not expected to behave in such way.

Validation performed

Manuall tested CLP and CLP-S compression job and make sure they don't hang.

Summary by CodeRabbit

• Bug Fixes

  • Improved handling of output from the compression command, enhancing clarity and efficiency.
  • Refined error handling for subprocess output, streamlining the control flow.

• New Features

  • Updated method signatures for better clarity in the compression task.

[coderabbitai]

Walkthrough

The pull request introduces modifications to the run_clp function in the file system compression task module. The changes primarily focus on refining the subprocess output processing logic, simplifying the control flow for reading compression command output. The implementation now handles line decoding more efficiently, removing explicit checks for empty lines and introducing a more streamlined approach to tracking output processing. The modifications aim to improve the clarity and efficiency of the compression task execution.

Changes

File	Change Summary
components/job-orchestration/job_orchestration/executor/compress/fs_compression_task.py	- Updated run_clp function output processing logic - Simplified line decoding and processing mechanism - Refined error handling for subprocess output

Suggested Reviewers

• kirkrodrigues

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

components/job-orchestration/job_orchestration/executor/compress/fs_compression_task.py (1)

248-252: LGTM! The bug fix correctly handles subprocess output.

The implementation now properly handles the subprocess output by correctly checking for EOF condition with if not line. This fixes the hanging issue mentioned in PR #634.

Consider adding error handling for JSON decoding.

While the core bug is fixed, the JSON decoding could benefit from error handling to prevent crashes on malformed output.

Consider wrapping the JSON decoding in a try-except block:

         if not line:
             last_line_decoded = True
         else:
-            stats = json.loads(line.decode("ascii"))
+            try:
+                stats = json.loads(line.decode("ascii"))
+            except json.JSONDecodeError as e:
+                logger.error(f"Failed to decode JSON from subprocess output: {e}")
+                stats = None

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📥 Commits

Reviewing files that changed from the base of the PR and between 37263eb and 926e8cc.

📒 Files selected for processing (1)

• components/job-orchestration/job_orchestration/executor/compress/fs_compression_task.py (1 hunks)