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rocksdb/tools/db_crashtest.py

148 lines
4.7 KiB

#! /usr/bin/env python
import os
import re
import sys
import time
import random
import getopt
import logging
import tempfile
import subprocess
import shutil
# This script runs and kills db_stress multiple times. It checks consistency
# in case of unsafe crashes in RocksDB.
def main(argv):
try:
opts, args = getopt.getopt(argv, "hd:t:i:o:b:")
except getopt.GetoptError:
print("db_crashtest.py -d <duration_test> -t <#threads> "
"-i <interval for one run> -o <ops_per_thread> "
"-b <write_buffer_size>\n")
sys.exit(2)
# default values, will be overridden by cmdline args
interval = 120 # time for one db_stress instance to run
duration = 6000 # total time for this script to test db_stress
threads = 32
# since we will be killing anyway, use large value for ops_per_thread
ops_per_thread = 100000000
write_buf_size = 4 * 1024 * 1024
for opt, arg in opts:
if opt == '-h':
print("db_crashtest.py -d <duration_test>"
" -t <#threads> -i <interval for one run>"
" -o <ops_per_thread> -b <write_buffer_size>\n")
sys.exit()
elif opt == "-d":
duration = int(arg)
elif opt == "-t":
threads = int(arg)
elif opt == "-i":
interval = int(arg)
elif opt == "-o":
ops_per_thread = int(arg)
elif opt == "-b":
write_buf_size = int(arg)
else:
print("db_crashtest.py -d <duration_test>"
" -t <#threads> -i <interval for one run>"
" -o <ops_per_thread> -b <write_buffer_size>\n")
sys.exit(2)
exit_time = time.time() + duration
print("Running blackbox-crash-test with \ninterval_between_crash="
+ str(interval) + "\ntotal-duration=" + str(duration)
+ "\nthreads=" + str(threads) + "\nops_per_thread="
+ str(ops_per_thread) + "\nwrite_buffer_size="
+ str(write_buf_size) + "\n")
dbname = tempfile.mkdtemp(prefix='rocksdb_crashtest_')
while time.time() < exit_time:
run_had_errors = False
killtime = time.time() + interval
cmd = re.sub('\s+', ' ', """
./db_stress
--test_batches_snapshots=1
--ops_per_thread=%s
--threads=%s
--write_buffer_size=%s
--destroy_db_initially=0
--reopen=20
--readpercent=45
--prefixpercent=5
--writepercent=35
--delpercent=5
--iterpercent=10
--db=%s
--max_key=100000000
--mmap_read=%s
--block_size=16384
--cache_size=1048576
--open_files=500000
--verify_checksum=1
--sync=0
--progress_reports=0
--disable_wal=0
--disable_data_sync=1
--target_file_size_base=2097152
--target_file_size_multiplier=2
--max_write_buffer_number=3
--max_background_compactions=20
--max_bytes_for_level_base=10485760
--filter_deletes=%s
--memtablerep=prefix_hash
--prefix_size=7
""" % (ops_per_thread,
threads,
write_buf_size,
dbname,
random.randint(0, 1),
random.randint(0, 1)))
child = subprocess.Popen([cmd],
stderr=subprocess.PIPE, shell=True)
print("Running db_stress with pid=%d: %s\n\n"
% (child.pid, cmd))
stop_early = False
while time.time() < killtime:
if child.poll() is not None:
print("WARNING: db_stress ended before kill: exitcode=%d\n"
% child.returncode)
stop_early = True
break
time.sleep(1)
if not stop_early:
if child.poll() is not None:
print("WARNING: db_stress ended before kill: exitcode=%d\n"
% child.returncode)
else:
child.kill()
print("KILLED %d\n" % child.pid)
time.sleep(1) # time to stabilize after a kill
while True:
line = child.stderr.readline().strip()
if line != '':
run_had_errors = True
print('***' + line + '^')
else:
break
if run_had_errors:
sys.exit(2)
time.sleep(1) # time to stabilize before the next run
# we need to clean up after ourselves -- only do this on test success
shutil.rmtree(dbname, True)
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))