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# Copyright (C) 2020 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:
Tests to check by default ping timer is disabled and epoll
thread count is 1
"""
from glusto.core import Glusto as g
from glustolibs.gluster.gluster_base_class import GlusterBaseClass
class TestPingTimerAndEpollThreadCountDefaultValue(GlusterBaseClass):
def tearDown(self):
# Remvoing the test script created during the test
cmd = "rm -f test.sh;"
ret, _, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to remove the test script")
# Calling GlusterBaseClass tearDown
self.get_super_method(self, 'tearDown')()
def test_ping_timer_disbaled_and_epoll_thread_count_default_value(self):
"""
Test Steps:
1. Start glusterd
2. Check ping timeout value in glusterd.vol should be 0
3. Create a test script for epoll thread count
4. Source the test script
5. Fetch the pid of glusterd
6. Check epoll thread count of glusterd should be 1
"""
# Fetch the ping timeout value from glusterd.vol file
cmd = "cat /etc/glusterfs/glusterd.vol | grep -i ping-timeout"
ret, out, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to get ping-timeout value from"
" glusterd.vol file")
# Check if the default value is 0
self.ping_value = out.split("ping-timeout")
self.ping_value[1] = (self.ping_value[1]).strip()
self.assertEqual(int(self.ping_value[1]), 0, "Unexpected: Default"
" value of ping-timeout is not 0")
# Shell Script to be run for epoll thread count
script = """
#!/bin/bash
function nepoll ()
{
local pid=$1;
for i in $(ls /proc/$pid/task);
do
cat /proc/$pid/task/$i/stack | grep -i 'sys_epoll_wait';
done
}
"""
# Execute the shell script
cmd = "echo '{}' > test.sh;".format(script)
ret, _, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to create the file with the script")
# Fetch the pid of glusterd
cmd = "pidof glusterd"
ret, pidof_glusterd, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to get the pid of glusterd")
pidof_glusterd = int(pidof_glusterd)
# Check the epoll thread count of glusterd
cmd = "source test.sh; nepoll %d | wc -l" % pidof_glusterd
ret, count, _ = g.run(self.mnode, cmd)
self.assertEqual(ret, 0, "Failed to get the epoll thread count")
self.assertEqual(int(count), 1, "Unexpected: Default epoll thread"
"count is not 1")
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