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ededeecb0f
Signed-off-by: FredricZ-2007 <226039983+fredricz-20070104@users.noreply.github.com> Signed-off-by: Kaiyu Xie <26294424+kaiyux@users.noreply.github.com> Co-authored-by: Kaiyu Xie <26294424+kaiyux@users.noreply.github.com>
64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
"""Simplified subprocess utilities for disagg module.
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This module provides simple wrappers around subprocess for executing
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SLURM commands (srun, sacct, scancel, sbatch).
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No complex process tree cleanup is needed because:
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1. SLURM commands (srun/sacct/scancel) are simple client tools that don't spawn complex process trees
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2. Actual workloads run on remote cluster nodes managed by SLURM scheduler
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3. SLURM automatically handles cleanup of remote jobs when the client disconnects
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"""
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import subprocess
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from typing import Optional
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from utils.logger import logger
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def exec_cmd(*popenargs, timeout: Optional[float] = None, **kwargs) -> int:
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"""Execute command and return exit code.
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Args:
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*popenargs: Command and arguments
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timeout: Timeout in seconds
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**kwargs: Additional subprocess arguments
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Returns:
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Exit code (0 for success, non-zero for failure)
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Raises:
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subprocess.TimeoutExpired: If timeout is reached
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"""
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result = subprocess.run(*popenargs, timeout=timeout, **kwargs)
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return result.returncode
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def exec_cmd_with_output(*popenargs, timeout: Optional[float] = None, **kwargs) -> str:
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"""Execute command and return output as string.
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Args:
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*popenargs: Command and arguments
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timeout: Timeout in seconds
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**kwargs: Additional subprocess arguments
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Returns:
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stdout as string (decoded from bytes)
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Raises:
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subprocess.CalledProcessError: If command returns non-zero exit code
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subprocess.TimeoutExpired: If timeout is reached
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"""
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result = subprocess.run(
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*popenargs,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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timeout=timeout,
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check=True,
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**kwargs,
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)
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# Log stderr if it exists
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if result.stderr:
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stderr_output = result.stderr.decode()
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logger.error(f"Command stderr: {stderr_output}")
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return result.stdout.decode()
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