rocksdb/tools/write_stress_runner.py
Peter Dillinger 0c56fc4d66 Allow missing "unversioned" python, as in CentOS 8 (#6883)
Summary:
RocksDB Makefile was assuming existence of 'python' command,
which is not present in CentOS 8. We avoid using 'python' if 'python3' is available.

Also added fancy logic to format-diff.sh to make clang-format-diff.py for Python2 work even with Python3 only (as some CentOS 8 FB machines come equipped)

Also, now use just 'python3' for PYTHON if not found so that an informative
"command not found" error will result rather than something weird.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6883

Test Plan: manually tried some variants, 'make check' on a fresh CentOS 8 machine without 'python' executable or Python2 but with clang-format-diff.py for Python2.

Reviewed By: gg814

Differential Revision: D21767029

Pulled By: pdillinger

fbshipit-source-id: 54761b376b140a3922407bdc462f3572f461d0e9
2020-05-29 11:29:23 -07:00

77 lines
2.4 KiB
Python

#!/usr/bin/env python3
# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
from __future__ import absolute_import, division, print_function, unicode_literals
import subprocess
import argparse
import random
import time
import sys
def generate_runtimes(total_runtime):
# combination of short runtimes and long runtimes, with heavier
# weight on short runtimes
possible_runtimes_sec = list(range(1, 10)) + list(range(1, 20)) + [100, 1000]
runtimes = []
while total_runtime > 0:
chosen = random.choice(possible_runtimes_sec)
chosen = min(chosen, total_runtime)
runtimes.append(chosen)
total_runtime -= chosen
return runtimes
def main(args):
runtimes = generate_runtimes(int(args.runtime_sec))
print("Going to execute write stress for " + str(runtimes)) # noqa: E999 T25377293 Grandfathered in
first_time = True
for runtime in runtimes:
kill = random.choice([False, True])
cmd = './write_stress --runtime_sec=' + \
("-1" if kill else str(runtime))
if len(args.db) > 0:
cmd = cmd + ' --db=' + args.db
if first_time:
first_time = False
else:
# use current db
cmd = cmd + ' --destroy_db=false'
if random.choice([False, True]):
cmd = cmd + ' --delete_obsolete_files_with_fullscan=true'
if random.choice([False, True]):
cmd = cmd + ' --low_open_files_mode=true'
print("Running write_stress for %d seconds (%s): %s" %
(runtime, ("kill-mode" if kill else "clean-shutdown-mode"),
cmd))
child = subprocess.Popen([cmd], shell=True)
killtime = time.time() + runtime
while not kill or time.time() < killtime:
time.sleep(1)
if child.poll() is not None:
if child.returncode == 0:
break
else:
print("ERROR: write_stress died with exitcode=%d\n"
% child.returncode)
sys.exit(1)
if kill:
child.kill()
# breathe
time.sleep(3)
if __name__ == '__main__':
random.seed(time.time())
parser = argparse.ArgumentParser(description="This script runs and kills \
write_stress multiple times")
parser.add_argument("--runtime_sec", default='1000')
parser.add_argument("--db", default='')
args = parser.parse_args()
main(args)