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# Copyright (C) 2015-2016 Red Hat, Inc. <http://www.redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
from glusto.core import Glusto as g
from glustolibs.gluster.gluster_base_class import (GlusterBaseClass, runs_on)
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.volume_libs import get_subvols
from glustolibs.gluster.brick_libs import (bring_bricks_offline,
are_bricks_offline,
get_all_bricks)
from glustolibs.gluster.heal_ops import get_heal_info_summary
from glustolibs.misc.misc_libs import upload_scripts
from glustolibs.io.utils import (validate_io_procs,
list_all_files_and_dirs_mounts,
wait_for_io_to_complete)
@runs_on([['distributed-replicated'],
['glusterfs']])
class TestSelfHeal(GlusterBaseClass):
"""
Description:
Test cases related to
healing in default configuration of the volume
"""
@classmethod
def setUpClass(cls):
# Calling GlusterBaseClass setUpClass
GlusterBaseClass.setUpClass.im_func(cls)
# Upload io scripts for running IO on mounts
g.log.info("Upload io scripts to clients %s for running IO on mounts"
% cls.clients)
script_local_path = ("/usr/share/glustolibs/io/scripts/"
"file_dir_ops.py")
cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/"
"file_dir_ops.py")
ret = upload_scripts(cls.clients, [script_local_path])
if not ret:
raise ExecutionError("Failed to upload IO scripts to clients %s"
% cls.clients)
g.log.info("Successfully uploaded IO scripts to clients %s"
% cls.clients)
cls.counter = 1
"""int: Value of counter is used for dirname-start-num argument for
file_dir_ops.py create_deep_dirs_with_files.
The --dir-length argument value for
file_dir_ops.py create_deep_dirs_with_files is set to 10
(refer to the cmd in setUp method). This means every mount will create
10 top level dirs. For every mountpoint/testcase to create new set of
dirs, we are incrementing the counter by --dir-length value i.e 10
in this test suite.
If we are changing the --dir-length to new value, ensure the counter
is also incremented by same value to create new set of files/dirs.
"""
def setUp(self):
# Calling GlusterBaseClass setUp
GlusterBaseClass.setUp.im_func(self)
self.all_mounts_procs = []
self.io_validation_complete = False
# Setup Volume and Mount Volume
g.log.info("Starting to Setup Volume and Mount Volume")
ret = self.setup_volume_and_mount_volume(mounts=self.mounts,
volume_create_force=False)
if not ret:
raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
g.log.info("Successful in Setup Volume and Mount Volume")
self.bricks_list = get_all_bricks(self.mnode, self.volname)
def tearDown(self):
"""
If test method failed before validating IO, tearDown waits for the
IO's to complete and checks for the IO exit status
Cleanup and umount volume
"""
if not self.io_validation_complete:
g.log.info("Wait for IO to complete as IO validation did not "
"succeed in test method")
ret = wait_for_io_to_complete(self.all_mounts_procs, self.mounts)
if not ret:
raise ExecutionError("IO failed on some of the clients")
g.log.info("IO is successful on all mounts")
# List all files and dirs created
g.log.info("List all files and directories:")
ret = list_all_files_and_dirs_mounts(self.mounts)
if not ret:
raise ExecutionError("Failed to list all files and dirs")
g.log.info("Listing all files and directories is successful")
# Cleanup and umount volume
g.log.info("Starting to Unmount Volume and Cleanup Volume")
ret = self.unmount_volume_and_cleanup_volume(mounts=self.mounts)
if not ret:
raise ExecutionError("Failed to umount the vol & cleanup Volume")
g.log.info("Successful in umounting the volume and Cleanup")
# Calling GlusterBaseClass teardown
GlusterBaseClass.tearDown.im_func(self)
def test_heal_info_shouldnot_list_files_being_accessed(self):
"""
- bring brick 1 offline
- create files and validate IO
- get entries before accessing file
- get first filename from active subvol without offline bricks
- access and modify the file
- while accessing - get entries
- Compare entries before accessing and while accessing
- validate IO
"""
# Bring 1-st brick offline
brick_to_bring_offline = [self.bricks_list[0]]
g.log.info('Bringing bricks %s offline...' % brick_to_bring_offline)
ret = bring_bricks_offline(self.volname, brick_to_bring_offline)
self.assertTrue(ret, 'Failed to bring bricks %s offline'
% brick_to_bring_offline)
ret = are_bricks_offline(self.mnode, self.volname,
brick_to_bring_offline)
self.assertTrue(ret, 'Bricks %s are not offline'
% brick_to_bring_offline)
g.log.info('Bringing bricks %s offline is successful'
% brick_to_bring_offline)
# Creating files on client side
for mount_obj in self.mounts:
g.log.info("Generating data for %s:%s"
% (mount_obj.client_system, mount_obj.mountpoint))
# Creating files
cmd = ("python %s create_files -f 100 %s"
% (self.script_upload_path, mount_obj.mountpoint))
proc = g.run_async(mount_obj.client_system, cmd,
user=mount_obj.user)
self.all_mounts_procs.append(proc)
# Validate IO
g.log.info("Wait for IO to complete and validate IO ...")
ret = validate_io_procs(self.all_mounts_procs, self.mounts)
self.io_validation_complete = True
self.assertTrue(ret, "IO failed on some of the clients")
g.log.info("IO is successful on all mounts")
# Get entries before accessing file
g.log.info("Getting entries_before_accessing file...")
entries_before_accessing = get_heal_info_summary(
self.mnode, self.volname)
self.assertNotEqual(entries_before_accessing, None,
'Can`t get heal info summary')
g.log.info(
"Getting entries_before_accessing file finished successfully")
# Get filename to access from active subvol without offline bricks
# Get last subvol
subvols = get_subvols(self.mnode, self.volname)
subvol_without_offline_brick = subvols['volume_subvols'][-1]
# Get first brick server and brick path
# and get first file from filelist
subvol_mnode, mnode_brick = subvol_without_offline_brick[0].split(':')
ret, file_list, err = g.run(subvol_mnode, 'ls %s' % mnode_brick)
file_to_edit = file_list.splitlines()[0]
# Access and modify the file
g.log.info("Start modifying IO on all mounts...")
self.all_mounts_procs = []
for mount_obj in self.mounts:
g.log.info("Modifying IO on %s:%s", mount_obj.client_system,
mount_obj.mountpoint)
cmd = ("cd %s/ ; "
"dd if=/dev/zero of=%s bs=1G count=1"
% (mount_obj.mountpoint, file_to_edit))
proc = g.run_async(mount_obj.client_system, cmd,
user=mount_obj.user)
self.all_mounts_procs.append(proc)
g.log.info("IO on %s:%s is modified successfully"
% (mount_obj.client_system,
mount_obj.mountpoint))
self.io_validation_complete = False
# Get entries while accessing file
g.log.info("Getting entries while accessing file...")
entries_while_accessing = get_heal_info_summary(
self.mnode, self.volname)
self.assertNotEqual(entries_before_accessing, None,
'Can`t get heal info summary')
g.log.info("Getting entries while accessing file "
"finished successfully")
# Compare dicts before accessing and while accessing
g.log.info('Comparing entries before modifying and while modifying...')
ret = cmp(entries_before_accessing, entries_while_accessing)
self.assertEqual(ret, 0, 'Entries before modifying and while modifying'
'are not equal')
g.log.info('Comparison entries before modifying and while modifying'
'finished successfully.')
# Validate IO
g.log.info("Wait for IO to complete and validate IO ...")
ret = validate_io_procs(self.all_mounts_procs, self.mounts)
self.assertTrue(ret, "IO failed on some of the clients")
self.io_validation_complete = True
g.log.info("IO is successful on all mounts")
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