535 lines
23 KiB
Python
535 lines
23 KiB
Python
#
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# Copyright(c) 2020 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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#
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from time import sleep
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import pytest
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from api.cas import casadm, casadm_parser, cli
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from api.cas.cache_config import CacheMode, CleaningPolicy, CacheModeTrait
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from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
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from core.test_run import TestRun
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from test_tools.disk_utils import Filesystem
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from test_utils import os_utils
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from test_utils.os_utils import Udev, DropCachesMode
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from test_utils.size import Size, Unit
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mount_point = "/mnt/cas"
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test_file_path = f"{mount_point}/test_file"
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iterations_per_config = 10
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cache_size = Size(16, Unit.GibiByte)
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@pytest.mark.parametrize("filesystem", Filesystem)
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@pytest.mark.parametrize("cache_mode", CacheMode.with_traits(CacheModeTrait.LazyWrites))
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_interrupt_core_flush(cache_mode, filesystem):
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"""
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title: Test if OpenCAS works correctly after core's flushing interruption.
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description: |
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Negative test of the ability of OpenCAS to handle core flushing interruption.
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pass_criteria:
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- No system crash.
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- Flushing would be stopped after interruption.
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- Md5sum are correct during all test steps.
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- Dirty blocks quantity after interruption is equal or lower.
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"""
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with TestRun.step("Prepare cache and core."):
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cache_part, core_part = prepare()
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for _ in TestRun.iteration(range(iterations_per_config),
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f"Reload cache configuration {iterations_per_config} times."):
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with TestRun.step("Start cache."):
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cache = casadm.start_cache(cache_part, cache_mode, force=True)
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with TestRun.step("Set cleaning policy to NOP."):
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cache.set_cleaning_policy(CleaningPolicy.nop)
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with TestRun.step(f"Add core device with {filesystem} filesystem and mount it."):
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core_part.create_filesystem(filesystem)
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core = cache.add_core(core_part)
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core.mount(mount_point)
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with TestRun.step(f"Create test file in mount point of exported object."):
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test_file = create_test_file()
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with TestRun.step("Check md5 sum of test file."):
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test_file_md5sum_before = test_file.md5sum()
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with TestRun.step("Get number of dirty data on exported object before interruption."):
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os_utils.sync()
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os_utils.drop_caches(DropCachesMode.ALL)
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core_dirty_blocks_before = core.get_dirty_blocks()
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with TestRun.step("Start flushing core device."):
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flush_pid = TestRun.executor.run_in_background(
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cli.flush_core_cmd(str(cache.cache_id), str(core.core_id)))
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sleep(2)
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with TestRun.step("Interrupt core flushing."):
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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while percentage < 50:
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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TestRun.executor.run(f"kill -s SIGINT {flush_pid}")
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with TestRun.step("Check number of dirty data on exported object after interruption."):
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core_dirty_blocks_after = core.get_dirty_blocks()
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if core_dirty_blocks_after >= core_dirty_blocks_before:
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TestRun.LOGGER.error("Quantity of dirty lines after core flush interruption "
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"should be lower.")
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if int(core_dirty_blocks_after) == 0:
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TestRun.LOGGER.error("Quantity of dirty lines after core flush interruption "
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"should not be zero.")
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with TestRun.step("Unmount core and stop cache."):
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core.unmount()
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cache.stop()
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with TestRun.step("Mount core device."):
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core_part.mount(mount_point)
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with TestRun.step("Check md5 sum of test file again."):
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if test_file_md5sum_before != test_file.md5sum():
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TestRun.LOGGER.error(
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"Md5 sums before and after interrupting core flush are different.")
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with TestRun.step("Unmount core device."):
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core_part.unmount()
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@pytest.mark.parametrize("filesystem", Filesystem)
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@pytest.mark.parametrize("cache_mode", CacheMode.with_traits(CacheModeTrait.LazyWrites))
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_interrupt_cache_flush(cache_mode, filesystem):
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"""
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title: Test if OpenCAS works correctly after cache's flushing interruption.
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description: |
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Negative test of the ability of OpenCAS to handle cache flushing interruption.
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pass_criteria:
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- No system crash.
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- Flushing would be stopped after interruption.
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- Md5sum are correct during all test steps.
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- Dirty blocks quantity after interruption is equal or lower.
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"""
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with TestRun.step("Prepare cache and core."):
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cache_part, core_part = prepare()
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for _ in TestRun.iteration(range(iterations_per_config),
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f"Reload cache configuration {iterations_per_config} times."):
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with TestRun.step("Start cache."):
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cache = casadm.start_cache(cache_part, cache_mode, force=True)
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with TestRun.step("Set cleaning policy to NOP."):
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cache.set_cleaning_policy(CleaningPolicy.nop)
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with TestRun.step(f"Add core device with {filesystem} filesystem and mount it."):
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core_part.create_filesystem(filesystem)
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core = cache.add_core(core_part)
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core.mount(mount_point)
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with TestRun.step(f"Create test file in mount point of exported object."):
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test_file = create_test_file()
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with TestRun.step("Check md5 sum of test file."):
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test_file_md5sum_before = test_file.md5sum()
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with TestRun.step("Get number of dirty data on exported object before interruption."):
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os_utils.sync()
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os_utils.drop_caches(DropCachesMode.ALL)
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cache_dirty_blocks_before = cache.get_dirty_blocks()
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with TestRun.step("Start flushing cache."):
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flush_pid = TestRun.executor.run_in_background(
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cli.flush_cache_cmd(str(cache.cache_id)))
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sleep(2)
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with TestRun.step("Interrupt cache flushing"):
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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while percentage < 50:
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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TestRun.executor.run(f"kill -s SIGINT {flush_pid}")
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with TestRun.step("Check number of dirty data on exported object after interruption."):
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cache_dirty_blocks_after = cache.get_dirty_blocks()
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if cache_dirty_blocks_after >= cache_dirty_blocks_before:
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TestRun.LOGGER.error("Quantity of dirty lines after cache flush interruption "
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"should be lower.")
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if int(cache_dirty_blocks_after) == 0:
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TestRun.LOGGER.error("Quantity of dirty lines after cache flush interruption "
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"should not be zero.")
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with TestRun.step("Unmount core and stop cache."):
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core.unmount()
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cache.stop()
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with TestRun.step("Mount core device."):
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core_part.mount(mount_point)
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with TestRun.step("Check md5 sum of test file again."):
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if test_file_md5sum_before != test_file.md5sum():
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TestRun.LOGGER.error(
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"Md5 sums before and after interrupting cache flush are different.")
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with TestRun.step("Unmount core device."):
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core_part.unmount()
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@pytest.mark.parametrize("filesystem", Filesystem)
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@pytest.mark.parametrize("cache_mode", CacheMode.with_traits(CacheModeTrait.LazyWrites))
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_interrupt_core_remove(cache_mode, filesystem):
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"""
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title: Test if OpenCAS works correctly after core's removing interruption.
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description: |
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Negative test of the ability of OpenCAS to handle core's removing interruption.
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pass_criteria:
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- No system crash.
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- Core would not be removed from cache after interruption.
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- Flushing would be stopped after interruption.
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- Md5sum are correct during all test steps.
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- Dirty blocks quantity after interruption is equal or lower.
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"""
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with TestRun.step("Prepare cache and core."):
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cache_dev = TestRun.disks['cache']
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cache_dev.create_partitions([cache_size])
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cache_part = cache_dev.partitions[0]
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core_dev = TestRun.disks['core']
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core_dev.create_partitions([cache_size * 2])
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core_part = core_dev.partitions[0]
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for _ in TestRun.iteration(range(iterations_per_config),
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f"Reload cache configuration {iterations_per_config} times."):
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with TestRun.step("Start cache."):
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cache = casadm.start_cache(cache_part, cache_mode, force=True)
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with TestRun.step("Set cleaning policy to NOP."):
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cache.set_cleaning_policy(CleaningPolicy.nop)
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with TestRun.step(f"Add core device with {filesystem} filesystem and mount it."):
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core_part.create_filesystem(filesystem)
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core = cache.add_core(core_part)
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core.mount(mount_point)
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with TestRun.step(f"Create test file in mount point of exported object."):
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test_file = create_test_file()
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with TestRun.step("Check md5 sum of test file."):
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test_file_md5sum_before = test_file.md5sum()
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with TestRun.step(
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"Get number of dirty data on exported object before core removal interruption."):
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os_utils.sync()
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os_utils.drop_caches(DropCachesMode.ALL)
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cache_dirty_blocks_before = cache.get_dirty_blocks()
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with TestRun.step("Unmount core."):
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core.unmount()
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with TestRun.step("Start removing core device."):
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flush_pid = TestRun.executor.run_in_background(
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cli.remove_core_cmd(str(cache.cache_id), str(core.core_id)))
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sleep(2)
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with TestRun.step("Interrupt core removing"):
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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while percentage < 50:
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percentage = casadm_parser.get_flushing_progress(cache.cache_i, core.core_id)
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TestRun.executor.run(f"kill -s SIGINT {flush_pid}")
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with TestRun.step(
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"Check number of dirty data on exported object after core removal interruption."):
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cache_dirty_blocks_after = cache.get_dirty_blocks()
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if cache_dirty_blocks_after >= cache_dirty_blocks_before:
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TestRun.LOGGER.error("Quantity of dirty lines after core removal interruption "
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"should be lower.")
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if int(cache_dirty_blocks_after) == 0:
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TestRun.LOGGER.error("Quantity of dirty lines after core removal interruption "
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"should not be zero.")
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with TestRun.step("Remove core from cache."):
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core.remove_core()
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with TestRun.step("Stop cache."):
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cache.stop()
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with TestRun.step("Mount core device."):
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core_part.mount(mount_point)
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with TestRun.step("Check md5 sum of test file again."):
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if test_file_md5sum_before != test_file.md5sum():
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TestRun.LOGGER.error(
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"Md5 sums before and after interrupting core removal are different.")
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with TestRun.step("Unmount core device."):
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core_part.unmount()
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@pytest.mark.parametrize("filesystem", Filesystem)
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@pytest.mark.parametrize("cache_mode", CacheMode.with_traits(CacheModeTrait.LazyWrites))
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_interrupt_cache_mode_switch_immediately(cache_mode, filesystem):
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"""
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title: Test if OpenCAS works correctly after cache mode switching immediate interruption.
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description: |
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Negative test of the ability of OpenCAS to handle cache mode switching
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immediate interruption.
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pass_criteria:
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- No system crash.
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- Cache mode will not be switched after interruption.
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- Flushing would be stopped after interruption.
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- Md5sum are correct during all test steps.
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- Dirty blocks quantity after interruption is equal or lower.
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"""
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with TestRun.step("Prepare cache and core."):
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cache_part, core_part = prepare()
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for _ in TestRun.iteration(range(iterations_per_config),
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f"Reload cache configuration {iterations_per_config} times."):
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with TestRun.step("Start cache."):
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cache = casadm.start_cache(cache_part, cache_mode, force=True)
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with TestRun.step("Set cleaning policy to NOP."):
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cache.set_cleaning_policy(CleaningPolicy.nop)
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with TestRun.step(f"Add core device with {filesystem} filesystem and mount it."):
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core_part.create_filesystem(filesystem)
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core = cache.add_core(core_part)
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core.mount(mount_point)
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with TestRun.step(f"Create test file in mount point of exported object."):
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test_file = create_test_file()
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with TestRun.step("Check md5 sum of test file."):
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test_file_md5sum_before = test_file.md5sum()
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with TestRun.step("Get number of dirty data on exported object before interruption."):
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os_utils.sync()
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os_utils.drop_caches(DropCachesMode.ALL)
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cache_dirty_blocks_before = cache.get_dirty_blocks()
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with TestRun.step("Start switching cache mode."):
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flush_pid = TestRun.executor.run_in_background(cli.set_cache_mode_cmd(
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str(CacheMode.DEFAULT.name.lower()), str(cache.cache_id), "yes"))
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with TestRun.step("Send interruption signal."):
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TestRun.executor.run(f"kill -s SIGINT {flush_pid}")
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with TestRun.step("Check number of dirty data on exported object after interruption."):
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cache_dirty_blocks_after = cache.get_dirty_blocks()
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if cache_dirty_blocks_after >= cache_dirty_blocks_before:
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TestRun.LOGGER.error("Quantity of dirty lines after cache flush interruption "
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"should be lower.")
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if int(cache_dirty_blocks_after) == 0:
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TestRun.LOGGER.error("Quantity of dirty lines after cache flush interruption "
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"should not be zero.")
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with TestRun.step("Check cache mode."):
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if cache.get_cache_mode() != cache_mode:
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TestRun.LOGGER.error("Cache mode should remain the same.")
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with TestRun.step("Unmount core and stop cache."):
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core.unmount()
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cache.stop()
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with TestRun.step("Mount core device."):
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core_part.mount(mount_point)
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with TestRun.step("Check md5 sum of test file again."):
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if test_file_md5sum_before != test_file.md5sum():
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TestRun.LOGGER.error(
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"Md5 sums before and after interrupting core removal are different.")
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with TestRun.step("Unmount core device."):
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core_part.unmount()
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@pytest.mark.parametrize("filesystem", Filesystem)
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@pytest.mark.parametrize("cache_mode", CacheMode.with_traits(CacheModeTrait.LazyWrites))
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_interrupt_cache_mode_switch_delayed(cache_mode, filesystem):
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"""
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title: Test if OpenCAS works correctly after cache mode switching delayed interruption.
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description: |
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Negative test of the ability of OpenCAS to handle cache mode switching
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interruption with delay.
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pass_criteria:
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- No system crash.
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- Cache mode cannot be interrupted with delay.
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- Md5sum are correct during all test steps.
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- Dirty blocks quantity after cache mode switching is zero.
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"""
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with TestRun.step("Prepare cache and core."):
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cache_part, core_part = prepare()
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for _ in TestRun.iteration(range(iterations_per_config),
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f"Reload cache configuration {iterations_per_config} times."):
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with TestRun.step("Start cache."):
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cache = casadm.start_cache(cache_part, cache_mode, force=True)
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with TestRun.step("Set cleaning policy to NOP."):
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cache.set_cleaning_policy(CleaningPolicy.nop)
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with TestRun.step(f"Add core device with {filesystem} filesystem and mount it."):
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core_part.create_filesystem(filesystem)
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core = cache.add_core(core_part)
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core.mount(mount_point)
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with TestRun.step(f"Create test file in mount point of exported object."):
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test_file = create_test_file()
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with TestRun.step("Check md5 sum of test file."):
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test_file_md5sum_before = test_file.md5sum()
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with TestRun.step("Start switching cache mode."):
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flush_pid = TestRun.executor.run_in_background(cli.set_cache_mode_cmd(
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str(CacheMode.DEFAULT.name.lower()), str(cache.cache_id), "yes"))
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sleep(2)
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with TestRun.step("Send interruption signal."):
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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while percentage < 50:
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percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
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TestRun.executor.run(f"kill -s SIGINT {flush_pid}")
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with TestRun.step(
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"Get quantity of dirty data on exported object after sending interruption "
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"signal to cas to stop mode switching."):
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if int(cache.get_dirty_blocks()) != 0:
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TestRun.LOGGER.error("Quantity of dirty lines should be zero now.")
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with TestRun.step("Check cache mode."):
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if cache.get_cache_mode() == cache_mode:
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TestRun.LOGGER.error("Cache mode should have changed.")
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with TestRun.step("Unmount core and stop cache."):
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core.unmount()
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cache.stop()
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with TestRun.step("Mount core device."):
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core_part.mount(mount_point)
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with TestRun.step("Check md5 sum of test file again."):
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if test_file_md5sum_before != test_file.md5sum():
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TestRun.LOGGER.error(
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"Md5 sums before and after interrupting core removal are different.")
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with TestRun.step("Unmount core device."):
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core_part.unmount()
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@pytest.mark.parametrize("filesystem", Filesystem)
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@pytest.mark.parametrize("cache_mode", CacheMode.with_traits(CacheModeTrait.LazyWrites))
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_interrupt_cache_stop(cache_mode, filesystem):
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"""
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title: Test if OpenCAS works correctly after cache stopping interruption.
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description: |
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Negative test of the ability of OpenCAS to handle cache's stop interruption.
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pass_criteria:
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- No system crash.
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- Flushing would be stopped after interruption.
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- Md5sum are correct during all test steps.
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- Dirty blocks quantity after interruption is lower but non-zero.
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"""
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with TestRun.step("Prepare cache and core."):
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cache_part, core_part = prepare()
|
|
|
|
for _ in TestRun.iteration(range(iterations_per_config),
|
|
f"Reload cache configuration {iterations_per_config} times."):
|
|
|
|
with TestRun.step("Start cache."):
|
|
cache = casadm.start_cache(cache_part, cache_mode, force=True)
|
|
|
|
with TestRun.step("Set cleaning policy to NOP."):
|
|
cache.set_cleaning_policy(CleaningPolicy.nop)
|
|
|
|
with TestRun.step(f"Add core device with {filesystem} filesystem and mount it."):
|
|
core_part.create_filesystem(filesystem)
|
|
core = cache.add_core(core_part)
|
|
core.mount(mount_point)
|
|
|
|
with TestRun.step(f"Create test file in mount point of exported object."):
|
|
test_file = create_test_file()
|
|
|
|
with TestRun.step("Check md5 sum of test file."):
|
|
test_file_md5sum_before = test_file.md5sum()
|
|
|
|
with TestRun.step("Get number of dirty data on exported object before interruption."):
|
|
os_utils.sync()
|
|
os_utils.drop_caches(DropCachesMode.ALL)
|
|
cache_dirty_blocks_before = cache.get_dirty_blocks()
|
|
|
|
with TestRun.step("Unmount core."):
|
|
core.unmount()
|
|
|
|
with TestRun.step("Start stopping cache."):
|
|
flush_pid = TestRun.executor.run_in_background(cli.stop_cmd(str(cache.cache_id)))
|
|
sleep(2)
|
|
|
|
with TestRun.step("Interrupt cache stopping."):
|
|
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
|
|
while percentage < 50:
|
|
percentage = casadm_parser.get_flushing_progress(cache.cache_id, core.core_id)
|
|
TestRun.executor.run(f"kill -s SIGINT {flush_pid}")
|
|
|
|
with TestRun.step("Check number of dirty data on exported object after interruption."):
|
|
cache_dirty_blocks_after = cache.get_dirty_blocks()
|
|
if cache_dirty_blocks_after >= cache_dirty_blocks_before:
|
|
TestRun.LOGGER.error("Quantity of dirty lines after cache stop interruption "
|
|
"should be lower.")
|
|
if int(cache_dirty_blocks_after) == 0:
|
|
TestRun.LOGGER.error("Quantity of dirty lines after cache stop interruption "
|
|
"should not be zero.")
|
|
|
|
with TestRun.step("Stop cache."):
|
|
cache.stop()
|
|
|
|
with TestRun.step("Mount core device."):
|
|
core_part.mount(mount_point)
|
|
|
|
with TestRun.step("Check md5 sum of test file again."):
|
|
if test_file_md5sum_before != test_file.md5sum():
|
|
TestRun.LOGGER.error("Md5 sums before and after interrupting"
|
|
" cache stop are different.")
|
|
|
|
with TestRun.step("Unmount core device."):
|
|
core_part.unmount()
|
|
|
|
|
|
def prepare():
|
|
cache_dev = TestRun.disks['cache']
|
|
cache_dev.create_partitions([cache_size])
|
|
cache_part = cache_dev.partitions[0]
|
|
core_dev = TestRun.disks['core']
|
|
core_dev.create_partitions([cache_size * 2])
|
|
core_part = core_dev.partitions[0]
|
|
Udev.disable()
|
|
return cache_part, core_part
|
|
|
|
|
|
def create_test_file():
|
|
from test_utils.filesystem.file import File
|
|
from test_tools.dd import Dd
|
|
bs = Size(512, Unit.KibiByte)
|
|
cnt = int(cache_size.value / bs.value)
|
|
test_file = File.create_file(test_file_path)
|
|
dd = Dd().output(test_file_path) \
|
|
.input("/dev/zero") \
|
|
.block_size(bs) \
|
|
.count(cnt)
|
|
dd.run()
|
|
test_file.refresh_item()
|
|
return test_file
|