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Use a consistent RLIMIT_NOFILE for ansible-test.

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This commit is contained in:
Matt Clay 2019-02-18 13:28:25 -08:00
parent d99728d9e6
commit e8a31a12be
5 changed files with 38 additions and 12 deletions
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20
test/runner/lib/cli.py
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@ -4,9 +4,14 @@ from __future__ import absolute_import, print_function
import errno
import os
import resource
import sys
# This import should occur as early as possible.
# It must occur before subprocess has been imported anywhere in the current process.
from lib.init import (
CURRENT_RLIMIT_NOFILE,
)
from lib.util import (
ApplicationError,
display,
@ -14,6 +19,7 @@ from lib.util import (
get_docker_completion,
generate_pip_command,
read_lines_without_comments,
MAXFD,
)
from lib.delegation import (
@ -90,16 +96,8 @@ def main():
display.info_stderr = (isinstance(config, SanityConfig) and config.lint) or (isinstance(config, IntegrationConfig) and config.list_targets)
check_startup()
# to achieve a consistent nofile ulimit, set to 16k here, this can affect performance in subprocess.Popen when
# being called with close_fds=True on Python (8x the time on some environments)
nofile_limit = 16 * 1024
current_limit = resource.getrlimit(resource.RLIMIT_NOFILE)
new_limit = (nofile_limit, nofile_limit)
if current_limit > new_limit:
display.info('RLIMIT_NOFILE: %s -> %s' % (current_limit, new_limit), verbosity=2)
resource.setrlimit(resource.RLIMIT_NOFILE, (nofile_limit, nofile_limit))
else:
display.info('RLIMIT_NOFILE: %s' % (current_limit, ), verbosity=2)
display.info('RLIMIT_NOFILE: %s' % (CURRENT_RLIMIT_NOFILE,), verbosity=2)
display.info('MAXFD: %d' % MAXFD, verbosity=2)
try:
args.func(config)