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rocksdb/tools/db_crashtest2.py

148 lines
5.5 KiB

#! /usr/bin/env python
import os
import sys
import time
import random
import getopt
import logging
import tempfile
import subprocess
# This python script runs db_stress multiple times with kill_random_test
# that causes leveldb to crash at various points in code.
# It also has test-batches-snapshot ON so that basic atomic/consistency
# checks can be performed.
#
def main(argv):
try:
opts, args = getopt.getopt(argv, "hd:t:k:o:b:")
except getopt.GetoptError:
print str(getopt.GetoptError)
print "db_crashtest2.py -d <duration_test> -t <#threads> " \
"-k <kills with prob 1/k> -o <ops_per_thread> "\
"-b <write_buffer_size>\n"
sys.exit(2)
# default values, will be overridden by cmdline args
kill_random_test = 97 # kill with probability 1/97 by default
duration = 6000 # total time for this script to test db_stress
threads = 32
ops_per_thread = 200000
write_buf_size = 4 * 1024 * 1024
for opt, arg in opts:
if opt == '-h':
print "db_crashtest2.py -d <duration_test> -t <#threads> " \
"-k <kills with prob 1/k> -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 == ("-k"):
kill_random_test = 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 "unrecognized option " + str(opt) + "\n"
print "db_crashtest2.py -d <duration_test> -t <#threads> " \
"-k <kills with prob 1/k> -o <ops_per_thread> " \
"-b <write_buffer_size>\n"
sys.exit(2)
exit_time = time.time() + duration
dirpath = tempfile.mkdtemp()
print("Running whitebox-crash-test with \ntotal-duration=" + str(duration)
+ "\nthreads=" + str(threads) + "\nops_per_thread="
+ str(ops_per_thread) + "\nwrite_buffer_size="
+ str(write_buf_size) + "\n")
# kill in every alternate run. toggle tracks which run we are doing.
toggle = True
while time.time() < exit_time:
run_had_errors = False
additional_opts = ' --disable_seek_compaction=' + \
str(random.randint(0, 1)) + \
' --mmap_read=' + str(random.randint(0, 1)) + \
' --block_size=16384 ' + \
' --cache_size=1048576 ' + \
' --open_files=500000 ' + \
' --verify_checksum=1 ' + \
' --sync=' + str(random.randint(0, 1)) + \
' --disable_wal=0 ' + \
' --disable_data_sync=' + \
str(random.randint(0, 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'
print ("Running db_stress with additional options=\n"
+ additional_opts + "\n")
if toggle:
# since we are going to kill anyway, use more ops per thread
new_ops_per_thread = 100 * ops_per_thread
killoption = '--kill_random_test=' + str(kill_random_test)
else:
new_ops_per_thread = ops_per_thread
killoption = ''
toggle = not toggle
cmd = ['./db_stress \
--test_batches_snapshots=1 \
--ops_per_thread=0' + str(new_ops_per_thread) + ' \
--threads=0' + str(threads) + ' \
--write_buffer_size=' + str(write_buf_size) + ' \
--destroy_db_initially=0 ' + killoption + ' \
--reopen=0 \
--readpercent=50 \
--db=' + dirpath + ' \
--max_key=100000000 ' + additional_opts]
popen = subprocess.Popen(cmd, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
shell=True)
stdoutdata, stderrdata = popen.communicate()
retncode = popen.returncode
msg = ("kill option = {0}, exitcode = {1}".format(
killoption, retncode))
print msg
print stdoutdata
expected = False
if (killoption == '') and (retncode == 0):
# we expect zero retncode if no kill option
expected = True
elif killoption != '' and retncode < 0:
# we expect negative retncode if kill option was given
expected = True
if not expected:
print "TEST FAILED. See kill option and exit code above!!!\n"
sys.exit(1)
stdoutdata = stdoutdata.lower()
errorcount = (stdoutdata.count('error') -
stdoutdata.count('got errors 0 times'))
print "#times error occured in output is " + str(errorcount) + "\n"
if (errorcount > 0):
print "TEST FAILED. Output has 'error'!!!\n"
sys.exit(2)
if (stdoutdata.find('fail') >= 0):
print "TEST FAILED. Output has 'fail'!!!\n"
sys.exit(2)
time.sleep(1) # time to stabilize after a kill
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))