问题描述
我试图像这样在Singularity容器中运行python子进程:
singularity exec image_name python python_task.py
def run_shell_cmd(cmd):
p = subprocess.Popen(
['/bin/bash','-o','pipefail'],# to catch error in pipe
stdin=subprocess.PIPE,stdout=subprocess.PIPE,stderr=subprocess.PIPE,universal_newlines=True,preexec_fn=os.setsid) # to make a new process with a new PGID
pid = p.pid
pgid = os.getpgid(pid)
log.info('run_shell_cmd: PID={},PGID={},CMD={}'.format(pid,pgid,cmd))
t0 = get_ticks()
stdout,stderr = p.communicate(cmd)
rc = p.returncode
t1 = get_ticks()
err_str = (
'PID={pid},PGID={pgid},RC={rc},DURATION_SEC={dur:.1f}\n'
'STDERR={stde}\nSTDOUT={stdo}'
).format(
pid=pid,pgid=pgid,rc=rc,dur=t1 - t0,stde=stderr.strip(),stdo=stdout.strip()
)
if rc:
# kill all child processes
try:
os.killpg(pgid,signal.SIGKILL)
except:
pass
finally:
raise Exception(err_str)
else:
log.info(err_str)
return stdout.strip('\n')
但是我收到此错误/异常
Exception: PID=23793,PGID=23793,RC=255,DURATION_SEC=0.1
STDERR=WARNING: Could not lookup the current user's @R_700_4045@ion: user: unkNown userid 29931
FATAL: Couldn't determine user account @R_700_4045@ion: user: unkNown userid 29931
有关如何更正此问题的任何建议?我认为userid 29931不存在于容器内,这导致此错误。但是我不确定该如何解决。
解决方法
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