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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.
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.glusterdir import get_dir_contents
from glustolibs.io.memory_and_cpu_utils import (
wait_for_logging_processes_to_stop)
from glustolibs.gluster.brick_libs import get_all_bricks
@runs_on([['arbiter', 'distributed-arbiter'], ['glusterfs']])
class TestMemoryLeakWithRm(GlusterBaseClass):
def setUp(self):
self.get_super_method(self, 'setUp')()
# Set test_id for get gathering
self.test_id = self.id()
# Set I/O flag to false
self.is_io_running = False
# Creating Volume and mounting the volume
ret = self.setup_volume_and_mount_volume(self.mounts)
if not ret:
raise ExecutionError("Volume creation or mount failed: %s"
% self.volname)
def tearDown(self):
# Unmounting and cleaning volume
ret = self.unmount_volume_and_cleanup_volume(self.mounts)
if not ret:
raise ExecutionError("Unable to delete volume %s" % self.volname)
self.get_super_method(self, 'tearDown')()
def test_memory_leak_with_rm(self):
"""
Test case:
1. Create a volume, start it and mount it.
2. Create 10,000 files each of size 200K
3. Delete the files created at step 2
4. Check if the files are deleted from backend
5. Check if there are any memory leaks and OOM killers.
"""
# Start monitoring resource usage on servers and clients
monitor_proc_dict = self.start_memory_and_cpu_usage_logging(
self.test_id, count=30)
self.assertIsNotNone(monitor_proc_dict,
"Failed to start monitoring on servers and "
"clients")
# Create files on mount point
cmd = ('cd %s;for i in {1..10000};'
'do dd if=/dev/urandom bs=200K count=1 of=file$i;done;'
'rm -rf %s/file*'
% (self.mounts[0].mountpoint, self.mounts[0].mountpoint))
ret, _, _ = g.run(self.mounts[0].client_system, cmd)
self.assertEqual(ret, 0, "Failed to create and delete files on"
" mountpoint")
g.log.info("Successfully created and removed files on mountpoint")
# Delete files from mount point and check if all files
# are deleted or not from mount point as well as backend bricks.
ret, _, _ = g.run(self.clients[0],
"rm -rf {}/*".format(self.mounts[0].mountpoint))
self.assertFalse(ret, "rm -rf * failed on mount point")
ret = get_dir_contents(self.clients[0],
"{}/".format(self.mounts[0].mountpoint))
self.assertEqual(ret, [], "Unexpected: Files and directories still "
"seen from mount point")
for brick in get_all_bricks(self.mnode, self.volname):
node, brick_path = brick.split(":")
ret = get_dir_contents(node, "{}/".format(brick_path))
self.assertEqual(ret, [], "Unexpected: Files and dirs still seen "
"on brick %s on node %s" % (brick_path, node))
g.log.info("rm -rf * on mount point successful")
# Wait for monitoring processes to complete
ret = wait_for_logging_processes_to_stop(monitor_proc_dict,
cluster=True)
self.assertTrue(ret,
"ERROR: Failed to stop monitoring processes")
# Check if there are any memory leaks and OOM killers
ret = self.check_for_memory_leaks_and_oom_kills_on_servers(
self.test_id)
self.assertFalse(ret,
"Memory leak and OOM kills check failed on servers")
ret = self.check_for_memory_leaks_and_oom_kills_on_clients(
self.test_id)
self.assertFalse(ret,
"Memory leak and OOM kills check failed on clients")
g.log.info("No memory leaks or OOM kills found on serves and clients")
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