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# Copyright (C) 2016-2017 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.
""" Description:
Test Cases in this module tests the self heal daemon process.
"""
from glusto.core import Glusto as g
from glustolibs.gluster.exceptions import ExecutionError
from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on
from glustolibs.gluster.volume_libs import (
expand_volume, shrink_volume, log_volume_info_and_status,
wait_for_volume_process_to_be_online)
from glustolibs.gluster.rebalance_ops import (rebalance_start,
wait_for_rebalance_to_complete,
rebalance_status)
from glustolibs.gluster.brick_libs import get_all_bricks
from glustolibs.gluster.heal_libs import (get_self_heal_daemon_pid,
do_bricks_exist_in_shd_volfile,
is_shd_daemonized)
@runs_on([['replicated', 'distributed-replicated', 'dispersed',
'distributed-dispersed'], ['glusterfs', 'nfs', 'cifs']])
class SelfHealDaemonProcessTests(GlusterBaseClass):
"""
SelfHealDaemonProcessTests contains tests which verifies the
self-heal daemon process of the nodes
"""
@classmethod
def setUpClass(cls):
"""
setup volume, mount volume and initialize necessary variables
which is used in tests
"""
# calling GlusterBaseClass setUpClass
GlusterBaseClass.setUpClass.im_func(cls)
# Setup Volume and Mount Volume
g.log.info("Starting to Setup Volume and Mount Volume")
ret = cls.setup_volume_and_mount_volume(mounts=cls.mounts)
if not ret:
raise ExecutionError("Failed to Setup_Volume and Mount_Volume")
g.log.info("Successful in Setup Volume and Mount Volume")
# Verfiy glustershd process releases its parent process
ret = is_shd_daemonized(cls.servers)
if not ret:
raise ExecutionError("Self Heal Daemon process was still"
" holding parent process.")
g.log.info("Self Heal Daemon processes are online")
cls.GLUSTERSHD = "/var/lib/glusterd/glustershd/glustershd-server.vol"
def setUp(self):
"""
setUp method for every test
"""
# calling GlusterBaseClass setUp
GlusterBaseClass.setUp.im_func(self)
def tearDown(self):
"""
tearDown for every test
"""
# Calling GlusterBaseClass tearDown
GlusterBaseClass.tearDown.im_func(self)
@classmethod
def tearDownClass(cls):
"""
Clean up the volume and umount volume from client
"""
# stopping the volume
g.log.info("Starting to Unmount Volume and Cleanup Volume")
ret = cls.unmount_volume_and_cleanup_volume(mounts=cls.mounts)
if not ret:
raise ExecutionError("Failed to Unmount Volume and Cleanup Volume")
g.log.info("Successful in Unmount Volume and Cleanup Volume")
# calling GlusterBaseClass tearDownClass
GlusterBaseClass.tearDownClass.im_func(cls)
def test_glustershd_with_add_remove_brick(self):
"""
Test script to verify glustershd process with adding and
removing bricks
* check glustershd process - only 1 glustershd process should
be running
* bricks must be present in glustershd-server.vol file for
the replicated involved volumes
* Add bricks
* check glustershd process - only 1 glustershd process should
be running and its should be different from previous one
* bricks which are added must present in glustershd-server.vol file
* remove bricks
* check glustershd process - only 1 glustershd process should
be running and its different from previous one
* bricks which are removed should not present
in glustershd-server.vol file
"""
nodes = self.volume['servers']
bricks_list = []
glustershd_pids = {}
# check the self-heal daemon process
g.log.info("Starting to get self-heal daemon process on "
"nodes %s" % nodes)
ret, pids = get_self_heal_daemon_pid(nodes)
self.assertTrue(ret, ("Either No self heal daemon process found or "
"more than One self heal daemon process "
"found : %s" % pids))
g.log.info("Successful in getting Single self heal daemon process"
" on all nodes %s", nodes)
glustershd_pids = pids
# get the bricks for the volume
g.log.info("Fetching bricks for the volume : %s" % self.volname)
bricks_list = get_all_bricks(self.mnode, self.volname)
g.log.info("Brick List : %s" % bricks_list)
# validate the bricks present in volume info with
# glustershd server volume file
g.log.info("Starting parsing file %s on "
"node %s" % (self.GLUSTERSHD, self.mnode))
ret = do_bricks_exist_in_shd_volfile(self.mnode, self.volname,
bricks_list)
self.assertTrue(ret, ("Brick List from volume info is different "
"from glustershd server volume file. "
"Please check log file for details"))
g.log.info("Successfully parsed %s file" % self.GLUSTERSHD)
# expanding volume
g.log.info("Start adding bricks to volume %s" % self.volname)
ret = expand_volume(self.mnode, self.volname, self.servers,
self.all_servers_info)
self.assertTrue(ret, ("Failed to add bricks to "
"volume %s " % self.volname))
g.log.info("Add brick successfull")
# Log Volume Info and Status after expanding the volume
g.log.info("Logging volume info and Status after expanding volume")
ret = log_volume_info_and_status(self.mnode, self.volname)
self.assertTrue(ret, ("Logging volume info and status failed "
"on volume %s", self.volname))
g.log.info("Successful in logging volume info and status "
"of volume %s", self.volname)
# Verify volume's all process are online for 60 sec
g.log.info("Verifying volume's all process are online")
ret = wait_for_volume_process_to_be_online(self.mnode, self.volname,
60)
self.assertTrue(ret, ("Volume %s : All process are not "
"online", self.volname))
g.log.info("Successfully Verified volume %s processes are online",
self.volname)
# Start Rebalance
g.log.info("Starting Rebalance on the volume")
ret, out, err = rebalance_start(self.mnode, self.volname)
self.assertEqual(ret, 0, ("Failed to start rebalance on "
"the volume %s with error %s" %
(self.volname, err)))
g.log.info("Successfully started rebalance on the "
"volume %s", self.volname)
# Log Rebalance status
g.log.info("Log Rebalance status")
_, _, _ = rebalance_status(self.mnode, self.volname)
# Wait for rebalance to complete
g.log.info("Waiting for rebalance to complete")
ret = wait_for_rebalance_to_complete(self.mnode, self.volname)
self.assertTrue(ret, ("Rebalance is not yet complete "
"on the volume %s", self.volname))
g.log.info("Rebalance is successfully complete on "
"the volume %s", self.volname)
# Check Rebalance status after rebalance is complete
g.log.info("Checking Rebalance status")
ret, _, _ = rebalance_status(self.mnode, self.volname)
self.assertEqual(ret, 0, ("Failed to get rebalance status for "
"the volume %s", self.volname))
g.log.info("Successfully got rebalance status of the "
"volume %s", self.volname)
# Check the self-heal daemon process after adding bricks
g.log.info("Starting to get self-heal daemon process on "
"nodes %s" % nodes)
glustershd_pids_after_expanding = {}
ret, pids = get_self_heal_daemon_pid(nodes)
self.assertTrue(ret, ("Either No self heal daemon process found or "
"more than One self heal daemon process found"))
g.log.info("Successfull in getting self-heal daemon process "
"on nodes %s" % nodes)
glustershd_pids_after_expanding = pids
g.log.info("Self Heal Daemon Process ID's afetr expanding "
"volume: %s" % glustershd_pids_after_expanding)
self.assertNotEqual(glustershd_pids,
glustershd_pids_after_expanding,
"Self Daemon process is same before and"
" after adding bricks")
g.log.info("Self Heal Daemon Process is different before and "
"after adding bricks")
# get the bricks for the volume after expanding
bricks_list_after_expanding = get_all_bricks(self.mnode, self.volname)
g.log.info("Brick List after expanding "
"volume: %s" % bricks_list_after_expanding)
# validate the bricks present in volume info
# with glustershd server volume file after adding bricks
g.log.info("Starting parsing file %s" % self.GLUSTERSHD)
ret = do_bricks_exist_in_shd_volfile(self.mnode, self.volname,
bricks_list_after_expanding)
self.assertTrue(ret, ("Brick List from volume info is different "
"from glustershd server volume file after "
"expanding bricks. Please check log file "
"for details"))
g.log.info("Successfully parsed %s file" % self.GLUSTERSHD)
# shrink the volume
g.log.info("Starting volume shrink")
ret = shrink_volume(self.mnode, self.volname)
self.assertTrue(ret, ("Failed to shrink the volume on "
"volume %s", self.volname))
g.log.info("Shrinking volume is successful on "
"volume %s", self.volname)
# Log Volume Info and Status after shrinking the volume
g.log.info("Logging volume info and Status after shrinking volume")
ret = log_volume_info_and_status(self.mnode, self.volname)
self.assertTrue(ret, ("Logging volume info and status failed on "
"volume %s", self.volname))
g.log.info("Successful in logging volume info and status "
"of volume %s", self.volname)
# get the bricks after shrinking the volume
bricks_list_after_shrinking = get_all_bricks(self.mnode, self.volname)
g.log.info("Brick List after shrinking "
"volume: %s" % bricks_list_after_shrinking)
self.assertEqual(len(bricks_list_after_shrinking), len(bricks_list),
"Brick Count is mismatched after "
"shrinking the volume %s" % self.volname)
g.log.info("Brick Count matched before before expanding "
"and after shrinking volume")
# Verfiy glustershd process releases its parent process
ret = is_shd_daemonized(nodes)
self.assertTrue(ret, ("Either No self heal daemon process found or "
"more than One self heal daemon process found"))
# check the self-heal daemon process after removing bricks
g.log.info("Starting to get self-heal daemon process "
"on nodes %s" % nodes)
glustershd_pids_after_shrinking = {}
ret, pids = get_self_heal_daemon_pid(nodes)
glustershd_pids_after_shrinking = pids
self.assertNotEqual(glustershd_pids_after_expanding,
glustershd_pids_after_shrinking,
"Self Heal Daemon process is same "
"after adding bricks and shrinking volume")
g.log.info("Self Heal Daemon Process is different after adding bricks "
"and shrinking volume")
# validate bricks present in volume info
# with glustershd server volume file after removing bricks
g.log.info("Starting parsing file %s" % self.GLUSTERSHD)
ret = do_bricks_exist_in_shd_volfile(self.mnode, self.volname,
bricks_list_after_shrinking)
self.assertTrue(ret, ("Brick List from volume info is different "
"from glustershd server volume file after "
"removing bricks. Please check log file "
"for details"))
g.log.info("Successfully parsed %s file" % self.GLUSTERSHD)
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