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# Copyright (C) 2015-2018 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_ops import set_volume_options
from glustolibs.gluster.volume_libs import (
verify_all_process_of_volume_are_online)
from glustolibs.gluster.brick_libs import (select_bricks_to_bring_offline,
bring_bricks_offline,
bring_bricks_online,
are_bricks_offline,
wait_for_bricks_to_be_online)
from glustolibs.gluster.heal_libs import (
wait_for_self_heal_daemons_to_be_online,
monitor_heal_completion)
from glustolibs.misc.misc_libs import upload_scripts
from glustolibs.io.utils import (collect_mounts_arequal, validate_io_procs)
@runs_on([['replicated', 'distributed-replicated'],
['glusterfs', 'cifs', 'nfs']])
class TestSelfHeal(GlusterBaseClass):
"""
Description:
Arbiter Test cases related to
healing in default configuration of the volume
"""
@classmethod
def setUpClass(cls):
# Calling GlusterBaseClass setUpClass
GlusterBaseClass.setUpClass.im_func(cls)
# Overriding the volume type to specifically test the volume type
# Change from distributed-replicated to arbiter
if cls.volume_type == "distributed-replicated":
cls.volume['voltype'] = {
'type': 'distributed-replicated',
'dist_count': 2,
'replica_count': 3,
'arbiter_count': 1,
'transport': 'tcp'}
# 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)
def setUp(self):
# Calling GlusterBaseClass setUp
GlusterBaseClass.setUp.im_func(self)
# 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)
if not ret:
raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
g.log.info("Successful in Setup Volume and Mount Volume")
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
"""
# 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_self_heal_algorithm_full_daemon_off(self):
"""""
Description:-
Checking healing when algorithm is set to "full" and self heal daemon
is "off".
"""""
# pylint: disable=too-many-statements
# Setting volume option of self heal & algorithm
options = {"metadata-self-heal": "disable",
"entry-self-heal": "disable",
"data-self-heal": "disable",
"data-self-heal-algorithm": "full",
"self-heal-daemon": "off"}
ret = set_volume_options(self.mnode, self.volname, options)
self.assertTrue(ret, "Failed to set the volume options %s" % options)
g.log.info(" Volume set options success")
# Select bricks to bring down
bricks_to_bring_offline_dict = (select_bricks_to_bring_offline(
self.mnode, self.volname))
bricks_to_bring_offline = bricks_to_bring_offline_dict['volume_bricks']
g.log.info("Bringing bricks: %s offline", bricks_to_bring_offline)
ret = bring_bricks_offline(self.volname, bricks_to_bring_offline)
self.assertTrue(ret, "Failed to bring bricks: %s offline"
% bricks_to_bring_offline)
g.log.info("Successful in bringing bricks: %s offline",
bricks_to_bring_offline)
# Validate if bricks are offline
g.log.info("Validating if bricks: %s are offline",
bricks_to_bring_offline)
ret = are_bricks_offline(self.mnode, self.volname,
bricks_to_bring_offline)
self.assertTrue(ret, "Not all the bricks in list:%s are offline"
% bricks_to_bring_offline)
g.log.info("Successfully validated that bricks %s are all offline",
bricks_to_bring_offline)
# IO on the mount point
all_mounts_procs = []
g.log.info("Creating Files on %s:%s", self.mounts[0].client_system,
self.mounts[0].mountpoint)
cmd = ("cd %s ;for i in `seq 1 100` ;"
"do dd if=/dev/urandom of=file$i bs=1M "
"count=1;done"
% self.mounts[0].mountpoint)
proc = g.run_async(self.mounts[0].client_system, cmd,
user=self.mounts[0].user)
all_mounts_procs.append(proc)
# Validate IO
self.assertTrue(
validate_io_procs(all_mounts_procs, self.mounts),
"IO failed on some of the clients"
)
# Collecting Arequal before bring the bricks up
g.log.info("Collecting Arequal before the bring of bricks down")
result_before = collect_mounts_arequal(self.mounts)
# Turning self heal daemon ON
optionstwo = {"self-heal-daemon": "on"}
ret = set_volume_options(self.mnode, self.volname, optionstwo)
self.assertTrue(ret, "Failed to turn self-heal ON")
g.log.info("Volume set options %s: success", optionstwo)
# Bring bricks online
g.log.info("Bring bricks: %s online", bricks_to_bring_offline)
ret = bring_bricks_online(self.mnode, self.volname,
bricks_to_bring_offline)
self.assertTrue(ret, "Failed to bring bricks: %s online"
% bricks_to_bring_offline)
g.log.info("Successfully brought all bricks:%s online",
bricks_to_bring_offline)
# Waiting for bricks to come online
g.log.info("Waiting for brick process to come online")
ret = wait_for_bricks_to_be_online(self.mnode,
self.volname,
timeout=30)
self.assertTrue(ret, "bricks didn't come online after adding bricks")
g.log.info("Bricks are online")
# Verifying all bricks online
g.log.info("Verifying volume's all process are online")
ret = verify_all_process_of_volume_are_online(self.mnode, self.volname)
self.assertTrue(ret, "Volume %s : All process are not online"
% self.volname)
g.log.info("Volume %s : All process are online", self.volname)
# Wait for self heal processes to come online
g.log.info("Wait for selfheal process to come online")
ret = wait_for_self_heal_daemons_to_be_online(self.mnode,
self.volname,
timeout=300)
self.assertTrue(ret, "Self-heal process are not online")
g.log.info("All self heal process are online")
# Wait for self-heal to complete
g.log.info("Wait for self-heal to complete")
ret = monitor_heal_completion(self.mnode, self.volname)
self.assertTrue(ret, "Self heal didn't complete even after waiting "
"for 20 minutes. 20 minutes is too much a time for "
"current test workload")
g.log.info("self-heal is successful after replace-brick operation")
# arequal after healing
g.log.info("Collecting Arequal before the bring of bricks down")
result_after = collect_mounts_arequal(self.mounts)
# Comparing the results
g.log.info("comparing both the results")
self.assertEqual(result_before, result_after, "Arequals are not equal")
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