0a77617820
Summary: In crash test, the db directory might be set to /dev/shm or /tmp, in certain environments such as internal testing infrastructure, neither of these directories support direct IO, so direct IO is never enabled in crash test. This PR sets up SyncPoints in direct IO related code paths to disable O_DIRECT flag in calls to `open`, so the direct IO code paths will be executed, all direct IO related assertions will be checked, but no real direct IO request will be issued to the file system. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6727 Test Plan: export CRASH_TEST_EXT_ARGS="--use_direct_reads=1 --mmap_read=0" make -j24 crash_test Reviewed By: zhichao-cao Differential Revision: D21139250 Pulled By: cheng-chang fbshipit-source-id: db9adfe78d91aa4759835b1af91c5db7b27b62ee
530 lines
20 KiB
Python
530 lines
20 KiB
Python
#!/usr/bin/env python
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# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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from __future__ import absolute_import, division, print_function, unicode_literals
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import os
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import sys
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import time
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import random
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import tempfile
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import subprocess
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import shutil
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import argparse
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# params overwrite priority:
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# for default:
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# default_params < {blackbox,whitebox}_default_params < args
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# for simple:
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# default_params < {blackbox,whitebox}_default_params <
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# simple_default_params <
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# {blackbox,whitebox}_simple_default_params < args
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# for cf_consistency:
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# default_params < {blackbox,whitebox}_default_params <
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# cf_consistency_params < args
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# for txn:
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# default_params < {blackbox,whitebox}_default_params < txn_params < args
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expected_values_file = tempfile.NamedTemporaryFile()
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default_params = {
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"acquire_snapshot_one_in": 10000,
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"block_size": 16384,
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"bloom_bits": lambda: random.choice([random.randint(0,19),
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random.lognormvariate(2.3, 1.3)]),
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"cache_index_and_filter_blocks": lambda: random.randint(0, 1),
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"cache_size": 1048576,
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"checkpoint_one_in": 1000000,
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"compression_type": lambda: random.choice(
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["none", "snappy", "zlib", "bzip2", "lz4", "lz4hc", "xpress", "zstd"]),
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"bottommost_compression_type": lambda:
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"disable" if random.randint(0, 1) == 0 else
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random.choice(
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["none", "snappy", "zlib", "bzip2", "lz4", "lz4hc", "xpress",
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"zstd"]),
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"checksum_type" : lambda: random.choice(["kCRC32c", "kxxHash", "kxxHash64"]),
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"compression_max_dict_bytes": lambda: 16384 * random.randint(0, 1),
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"compression_zstd_max_train_bytes": lambda: 65536 * random.randint(0, 1),
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"clear_column_family_one_in": 0,
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"compact_files_one_in": 1000000,
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"compact_range_one_in": 1000000,
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"delpercent": 4,
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"delrangepercent": 1,
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"destroy_db_initially": 0,
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"enable_pipelined_write": lambda: random.randint(0, 1),
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"expected_values_path": expected_values_file.name,
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"flush_one_in": 1000000,
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"get_live_files_one_in": 1000000,
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# Note: the following two are intentionally disabled as the corresponding
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# APIs are not guaranteed to succeed.
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"get_sorted_wal_files_one_in": 0,
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"get_current_wal_file_one_in": 0,
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# Temporarily disable hash index
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"index_type": lambda: random.choice([0, 0, 0, 2, 2, 3]),
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"max_background_compactions": 20,
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"max_bytes_for_level_base": 10485760,
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"max_key": 100000000,
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"max_write_buffer_number": 3,
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"mmap_read": lambda: random.randint(0, 1),
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"nooverwritepercent": 1,
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"open_files": lambda : random.choice([-1, -1, 100, 500000]),
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"partition_filters": lambda: random.randint(0, 1),
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"pause_background_one_in": 1000000,
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"prefixpercent": 5,
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"progress_reports": 0,
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"readpercent": 45,
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"recycle_log_file_num": lambda: random.randint(0, 1),
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"reopen": 20,
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"snapshot_hold_ops": 100000,
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"long_running_snapshots": lambda: random.randint(0, 1),
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"subcompactions": lambda: random.randint(1, 4),
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"target_file_size_base": 2097152,
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"target_file_size_multiplier": 2,
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"use_direct_reads": lambda: random.randint(0, 1),
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"use_direct_io_for_flush_and_compaction": lambda: random.randint(0, 1),
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"mock_direct_io": False,
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"use_full_merge_v1": lambda: random.randint(0, 1),
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"use_merge": lambda: random.randint(0, 1),
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"verify_checksum": 1,
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"write_buffer_size": 4 * 1024 * 1024,
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"writepercent": 35,
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"format_version": lambda: random.choice([2, 3, 4, 5, 5]),
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"index_block_restart_interval": lambda: random.choice(range(1, 16)),
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"use_multiget" : lambda: random.randint(0, 1),
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"periodic_compaction_seconds" :
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lambda: random.choice([0, 0, 1, 2, 10, 100, 1000]),
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"compaction_ttl" : lambda: random.choice([0, 0, 1, 2, 10, 100, 1000]),
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# Test small max_manifest_file_size in a smaller chance, as most of the
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# time we wnat manifest history to be preserved to help debug
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"max_manifest_file_size" : lambda : random.choice(
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[t * 16384 if t < 3 else 1024 * 1024 * 1024 for t in range(1, 30)]),
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# Sync mode might make test runs slower so running it in a smaller chance
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"sync" : lambda : random.choice(
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[1 if t == 0 else 0 for t in range(0, 20)]),
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# Disable compation_readahead_size because the test is not passing.
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#"compaction_readahead_size" : lambda : random.choice(
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# [0, 0, 1024 * 1024]),
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"db_write_buffer_size" : lambda: random.choice(
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[0, 0, 0, 1024 * 1024, 8 * 1024 * 1024, 128 * 1024 * 1024]),
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"avoid_unnecessary_blocking_io" : random.randint(0, 1),
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"write_dbid_to_manifest" : random.randint(0, 1),
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"avoid_flush_during_recovery" : random.choice(
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[1 if t == 0 else 0 for t in range(0, 8)]),
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"max_write_batch_group_size_bytes" : lambda: random.choice(
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[16, 64, 1024 * 1024, 16 * 1024 * 1024]),
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"level_compaction_dynamic_level_bytes" : True,
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"verify_checksum_one_in": 1000000,
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"verify_db_one_in": 100000,
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"continuous_verification_interval" : 0,
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"max_key_len": 3,
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"key_len_percent_dist": "1,30,69",
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"read_fault_one_in": lambda: random.choice([0, 1000]),
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"sync_fault_injection": False
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}
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_TEST_DIR_ENV_VAR = 'TEST_TMPDIR'
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_DEBUG_LEVEL_ENV_VAR = 'DEBUG_LEVEL'
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def is_release_mode():
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return os.environ.get(_DEBUG_LEVEL_ENV_VAR) == "0"
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def get_dbname(test_name):
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test_dir_name = "rocksdb_crashtest_" + test_name
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test_tmpdir = os.environ.get(_TEST_DIR_ENV_VAR)
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if test_tmpdir is None or test_tmpdir == "":
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dbname = tempfile.mkdtemp(prefix=test_dir_name)
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else:
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dbname = test_tmpdir + "/" + test_dir_name
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shutil.rmtree(dbname, True)
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os.mkdir(dbname)
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return dbname
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def is_direct_io_supported(dbname):
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with tempfile.NamedTemporaryFile(dir=dbname) as f:
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try:
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os.open(f.name, os.O_DIRECT)
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except BaseException:
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return False
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return True
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blackbox_default_params = {
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# total time for this script to test db_stress
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"duration": 6000,
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# time for one db_stress instance to run
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"interval": 120,
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# since we will be killing anyway, use large value for ops_per_thread
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"ops_per_thread": 100000000,
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"set_options_one_in": 10000,
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"test_batches_snapshots": 1,
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}
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whitebox_default_params = {
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"duration": 10000,
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"log2_keys_per_lock": 10,
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"ops_per_thread": 200000,
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"random_kill_odd": 888887,
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"test_batches_snapshots": lambda: random.randint(0, 1),
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}
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simple_default_params = {
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"allow_concurrent_memtable_write": lambda: random.randint(0, 1),
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"column_families": 1,
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"max_background_compactions": 1,
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"max_bytes_for_level_base": 67108864,
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"memtablerep": "skip_list",
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"prefixpercent": 0,
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"readpercent": 50,
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"prefix_size" : -1,
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"target_file_size_base": 16777216,
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"target_file_size_multiplier": 1,
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"test_batches_snapshots": 0,
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"write_buffer_size": 32 * 1024 * 1024,
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"level_compaction_dynamic_level_bytes": False,
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}
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blackbox_simple_default_params = {
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"open_files": -1,
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"set_options_one_in": 0,
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}
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whitebox_simple_default_params = {}
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cf_consistency_params = {
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"disable_wal": lambda: random.randint(0, 1),
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"reopen": 0,
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"test_cf_consistency": 1,
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# use small value for write_buffer_size so that RocksDB triggers flush
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# more frequently
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"write_buffer_size": 1024 * 1024,
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"enable_pipelined_write": lambda: random.randint(0, 1),
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}
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txn_params = {
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"use_txn" : 1,
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# Avoid lambda to set it once for the entire test
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"txn_write_policy": random.randint(0, 2),
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"unordered_write": random.randint(0, 1),
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"disable_wal": 0,
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# OpenReadOnly after checkpoint is not currnetly compatible with WritePrepared txns
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"checkpoint_one_in": 0,
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# pipeline write is not currnetly compatible with WritePrepared txns
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"enable_pipelined_write": 0,
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}
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def finalize_and_sanitize(src_params):
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dest_params = dict([(k, v() if callable(v) else v)
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for (k, v) in src_params.items()])
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if dest_params.get("compression_type") != "zstd" or \
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dest_params.get("compression_max_dict_bytes") == 0:
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dest_params["compression_zstd_max_train_bytes"] = 0
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if dest_params.get("allow_concurrent_memtable_write", 1) == 1:
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dest_params["memtablerep"] = "skip_list"
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if dest_params["mmap_read"] == 1:
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dest_params["use_direct_io_for_flush_and_compaction"] = 0
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dest_params["use_direct_reads"] = 0
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if (dest_params["use_direct_io_for_flush_and_compaction"] == 1
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or dest_params["use_direct_reads"] == 1) and \
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not is_direct_io_supported(dest_params["db"]):
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if is_release_mode():
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print("{} does not support direct IO".format(dest_params["db"]))
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sys.exit(1)
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else:
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dest_params["mock_direct_io"] = True
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# DeleteRange is not currnetly compatible with Txns
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if dest_params.get("test_batches_snapshots") == 1 or \
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dest_params.get("use_txn") == 1:
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dest_params["delpercent"] += dest_params["delrangepercent"]
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dest_params["delrangepercent"] = 0
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# Only under WritePrepared txns, unordered_write would provide the same guarnatees as vanilla rocksdb
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if dest_params.get("unordered_write", 0) == 1:
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dest_params["txn_write_policy"] = 1
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dest_params["allow_concurrent_memtable_write"] = 1
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if dest_params.get("disable_wal", 0) == 1:
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dest_params["atomic_flush"] = 1
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dest_params["sync"] = 0
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if dest_params.get("open_files", 1) != -1:
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# Compaction TTL and periodic compactions are only compatible
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# with open_files = -1
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dest_params["compaction_ttl"] = 0
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dest_params["periodic_compaction_seconds"] = 0
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if dest_params.get("compaction_style", 0) == 2:
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# Disable compaction TTL in FIFO compaction, because right
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# now assertion failures are triggered.
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dest_params["compaction_ttl"] = 0
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dest_params["periodic_compaction_seconds"] = 0
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if dest_params["partition_filters"] == 1:
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if dest_params["index_type"] != 2:
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dest_params["partition_filters"] = 0
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else:
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dest_params["use_block_based_filter"] = 0
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if dest_params.get("atomic_flush", 0) == 1:
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# disable pipelined write when atomic flush is used.
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dest_params["enable_pipelined_write"] = 0
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return dest_params
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def gen_cmd_params(args):
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params = {}
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params.update(default_params)
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if args.test_type == 'blackbox':
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params.update(blackbox_default_params)
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if args.test_type == 'whitebox':
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params.update(whitebox_default_params)
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if args.simple:
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params.update(simple_default_params)
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if args.test_type == 'blackbox':
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params.update(blackbox_simple_default_params)
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if args.test_type == 'whitebox':
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params.update(whitebox_simple_default_params)
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if args.cf_consistency:
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params.update(cf_consistency_params)
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if args.txn:
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params.update(txn_params)
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for k, v in vars(args).items():
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if v is not None:
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params[k] = v
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return params
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def gen_cmd(params, unknown_params):
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finalzied_params = finalize_and_sanitize(params)
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cmd = ['./db_stress'] + [
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'--{0}={1}'.format(k, v)
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for k, v in [(k, finalzied_params[k]) for k in sorted(finalzied_params)]
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if k not in set(['test_type', 'simple', 'duration', 'interval',
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'random_kill_odd', 'cf_consistency', 'txn'])
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and v is not None] + unknown_params
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return cmd
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# This script runs and kills db_stress multiple times. It checks consistency
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# in case of unsafe crashes in RocksDB.
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def blackbox_crash_main(args, unknown_args):
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cmd_params = gen_cmd_params(args)
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dbname = get_dbname('blackbox')
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exit_time = time.time() + cmd_params['duration']
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print("Running blackbox-crash-test with \n"
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+ "interval_between_crash=" + str(cmd_params['interval']) + "\n"
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+ "total-duration=" + str(cmd_params['duration']) + "\n")
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while time.time() < exit_time:
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run_had_errors = False
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killtime = time.time() + cmd_params['interval']
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cmd = gen_cmd(dict(
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list(cmd_params.items())
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+ list({'db': dbname}.items())), unknown_args)
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child = subprocess.Popen(cmd, stderr=subprocess.PIPE)
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print("Running db_stress with pid=%d: %s\n\n"
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% (child.pid, ' '.join(cmd)))
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stop_early = False
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while time.time() < killtime:
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if child.poll() is not None:
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print("WARNING: db_stress ended before kill: exitcode=%d\n"
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% child.returncode)
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stop_early = True
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break
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time.sleep(1)
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if not stop_early:
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if child.poll() is not None:
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print("WARNING: db_stress ended before kill: exitcode=%d\n"
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% child.returncode)
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else:
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child.kill()
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print("KILLED %d\n" % child.pid)
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time.sleep(1) # time to stabilize after a kill
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while True:
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line = child.stderr.readline().strip().decode('utf-8')
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if line == '':
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break
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elif not line.startswith('WARNING'):
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run_had_errors = True
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print('stderr has error message:')
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print('***' + line + '***')
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if run_had_errors:
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sys.exit(2)
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time.sleep(1) # time to stabilize before the next run
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# we need to clean up after ourselves -- only do this on test success
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shutil.rmtree(dbname, True)
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# This python script runs db_stress multiple times. Some runs with
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# kill_random_test that causes rocksdb to crash at various points in code.
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def whitebox_crash_main(args, unknown_args):
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cmd_params = gen_cmd_params(args)
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dbname = get_dbname('whitebox')
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cur_time = time.time()
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exit_time = cur_time + cmd_params['duration']
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half_time = cur_time + cmd_params['duration'] // 2
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print("Running whitebox-crash-test with \n"
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+ "total-duration=" + str(cmd_params['duration']) + "\n")
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total_check_mode = 4
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check_mode = 0
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kill_random_test = cmd_params['random_kill_odd']
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kill_mode = 0
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while time.time() < exit_time:
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if check_mode == 0:
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additional_opts = {
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# use large ops per thread since we will kill it anyway
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"ops_per_thread": 100 * cmd_params['ops_per_thread'],
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}
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# run with kill_random_test, with three modes.
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# Mode 0 covers all kill points. Mode 1 covers less kill points but
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# increases change of triggering them. Mode 2 covers even less
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# frequent kill points and further increases triggering change.
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if kill_mode == 0:
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additional_opts.update({
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"kill_random_test": kill_random_test,
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})
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elif kill_mode == 1:
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if cmd_params.get('disable_wal', 0) == 1:
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my_kill_odd = kill_random_test // 50 + 1
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else:
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my_kill_odd = kill_random_test // 10 + 1
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additional_opts.update({
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"kill_random_test": my_kill_odd,
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"kill_prefix_blacklist": "WritableFileWriter::Append,"
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+ "WritableFileWriter::WriteBuffered",
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})
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elif kill_mode == 2:
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# TODO: May need to adjust random odds if kill_random_test
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# is too small.
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additional_opts.update({
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"kill_random_test": (kill_random_test // 5000 + 1),
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"kill_prefix_blacklist": "WritableFileWriter::Append,"
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"WritableFileWriter::WriteBuffered,"
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"PosixMmapFile::Allocate,WritableFileWriter::Flush",
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})
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# Run kill mode 0, 1 and 2 by turn.
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kill_mode = (kill_mode + 1) % 3
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elif check_mode == 1:
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# normal run with universal compaction mode
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additional_opts = {
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"kill_random_test": None,
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"ops_per_thread": cmd_params['ops_per_thread'],
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"compaction_style": 1,
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}
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elif check_mode == 2:
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# normal run with FIFO compaction mode
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# ops_per_thread is divided by 5 because FIFO compaction
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# style is quite a bit slower on reads with lot of files
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additional_opts = {
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"kill_random_test": None,
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"ops_per_thread": cmd_params['ops_per_thread'] // 5,
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"compaction_style": 2,
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}
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else:
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# normal run
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additional_opts = {
|
|
"kill_random_test": None,
|
|
"ops_per_thread": cmd_params['ops_per_thread'],
|
|
}
|
|
|
|
cmd = gen_cmd(dict(list(cmd_params.items())
|
|
+ list(additional_opts.items())
|
|
+ list({'db': dbname}.items())), unknown_args)
|
|
|
|
print("Running:" + ' '.join(cmd) + "\n") # noqa: E999 T25377293 Grandfathered in
|
|
|
|
popen = subprocess.Popen(cmd, stdout=subprocess.PIPE,
|
|
stderr=subprocess.STDOUT)
|
|
stdoutdata, stderrdata = popen.communicate()
|
|
if stdoutdata:
|
|
stdoutdata = stdoutdata.decode('utf-8')
|
|
if stderrdata:
|
|
stderrdata = stderrdata.decode('utf-8')
|
|
retncode = popen.returncode
|
|
msg = ("check_mode={0}, kill option={1}, exitcode={2}\n".format(
|
|
check_mode, additional_opts['kill_random_test'], retncode))
|
|
print(msg)
|
|
print(stdoutdata)
|
|
|
|
expected = False
|
|
if additional_opts['kill_random_test'] is None and (retncode == 0):
|
|
# we expect zero retncode if no kill option
|
|
expected = True
|
|
elif additional_opts['kill_random_test'] is not None and retncode <= 0:
|
|
# When kill option is given, the test MIGHT kill itself.
|
|
# If it does, negative retncode is expected. Otherwise 0.
|
|
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 occurred 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)
|
|
|
|
# First half of the duration, keep doing kill test. For the next half,
|
|
# try different modes.
|
|
if time.time() > half_time:
|
|
# we need to clean up after ourselves -- only do this on test
|
|
# success
|
|
shutil.rmtree(dbname, True)
|
|
os.mkdir(dbname)
|
|
cmd_params.pop('expected_values_path', None)
|
|
check_mode = (check_mode + 1) % total_check_mode
|
|
|
|
time.sleep(1) # time to stabilize after a kill
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description="This script runs and kills \
|
|
db_stress multiple times")
|
|
parser.add_argument("test_type", choices=["blackbox", "whitebox"])
|
|
parser.add_argument("--simple", action="store_true")
|
|
parser.add_argument("--cf_consistency", action='store_true')
|
|
parser.add_argument("--txn", action='store_true')
|
|
|
|
all_params = dict(list(default_params.items())
|
|
+ list(blackbox_default_params.items())
|
|
+ list(whitebox_default_params.items())
|
|
+ list(simple_default_params.items())
|
|
+ list(blackbox_simple_default_params.items())
|
|
+ list(whitebox_simple_default_params.items()))
|
|
|
|
for k, v in all_params.items():
|
|
parser.add_argument("--" + k, type=type(v() if callable(v) else v))
|
|
# unknown_args are passed directly to db_stress
|
|
args, unknown_args = parser.parse_known_args()
|
|
|
|
test_tmpdir = os.environ.get(_TEST_DIR_ENV_VAR)
|
|
if test_tmpdir is not None and not os.path.isdir(test_tmpdir):
|
|
print('%s env var is set to a non-existent directory: %s' %
|
|
(_TEST_DIR_ENV_VAR, test_tmpdir))
|
|
sys.exit(1)
|
|
|
|
if args.test_type == 'blackbox':
|
|
blackbox_crash_main(args, unknown_args)
|
|
if args.test_type == 'whitebox':
|
|
whitebox_crash_main(args, unknown_args)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|