From be7397195d3a4772b69f1afe2f831b3008219ac4 Mon Sep 17 00:00:00 2001 From: sayaleeraut Date: Thu, 4 Jun 2020 22:30:29 +0530 Subject: [Test] Check stack overflow in readdirp Description: The TC checks that there is no stack overflow in readdirp with parallel-readdir enabled. Steps : 1) Create a volume. 2) Mount the volume using FUSE. 3) Enable performance.parallel-readdir and performance.readdir-ahead on the volume. 4) Create 10000 files on the mount point. 5) Add-brick to the volume. 6) Perform fix-layout on the volume (not rebalance). 7) From client node, rename all the files, this will result in creation of linkto files on the newly added brick. 8) Do ls -l (lookup) on the mount-point. Change-Id: I821efea55e3f8981ecd307b93781f2da5790c548 Signed-off-by: sayaleeraut --- tests/functional/dht/test_stack_overflow.py | 131 ++++++++++++++++++++++++++++ 1 file changed, 131 insertions(+) create mode 100644 tests/functional/dht/test_stack_overflow.py (limited to 'tests') diff --git a/tests/functional/dht/test_stack_overflow.py b/tests/functional/dht/test_stack_overflow.py new file mode 100644 index 000000000..b165bdf65 --- /dev/null +++ b/tests/functional/dht/test_stack_overflow.py @@ -0,0 +1,131 @@ +# Copyright (C) 2020 Red Hat, Inc. +# +# 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.exceptions import ExecutionError +from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on +from glustolibs.gluster.volume_ops import (set_volume_options, + reset_volume_option) +from glustolibs.gluster.volume_libs import expand_volume +from glustolibs.gluster.rebalance_ops import (rebalance_start, + wait_for_fix_layout_to_complete) +from glustolibs.gluster.glusterfile import move_file + + +@runs_on([['distributed', 'distributed-replicated', + 'dispersed', 'distributed-dispersed', 'replicated', + 'arbiter', 'distributed-arbiter'], + ['glusterfs']]) +class TestStackOverflow(GlusterBaseClass): + def setUp(self): + """ + Setup and mount volume or raise ExecutionError + """ + self.get_super_method(self, 'setUp')() + + # Setup Volume + ret = self.setup_volume_and_mount_volume([self.mounts[0]]) + if not ret: + g.log.error("Failed to Setup and Mount Volume") + raise ExecutionError("Failed to Setup and Mount Volume") + + def tearDown(self): + # Reset the volume options set inside the test + vol_options = ['performance.parallel-readdir', + 'performance.readdir-ahead'] + for opt in vol_options: + ret, _, _ = reset_volume_option(self.mnode, self.volname, opt) + if ret: + raise ExecutionError("Failed to reset the volume option %s" + % opt) + g.log.info("Successfully reset the volume options") + + # Unmount and cleanup original volume + ret = self.unmount_volume_and_cleanup_volume(mounts=[self.mounts[0]]) + 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 + self.get_super_method(self, 'tearDown')() + + def test_stack_overflow(self): + """ + Description: Tests to check that there is no stack overflow + in readdirp with parallel-readdir enabled. + Steps : + 1) Create a volume. + 2) Mount the volume using FUSE. + 3) Enable performance.parallel-readdir and + performance.readdir-ahead on the volume. + 4) Create 10000 files on the mount point. + 5) Add-brick to the volume. + 6) Perform fix-layout on the volume (not rebalance). + 7) From client node, rename all the files, this will result in creation + of linkto files on the newly added brick. + 8) Do ls -l (lookup) on the mount-point. + """ + # pylint: disable=too-many-statements + # Enable performance.parallel-readdir and + # performance.readdir-ahead on the volume + options = {"performance.parallel-readdir": "enable", + "performance.readdir-ahead": "enable"} + ret = set_volume_options(self.mnode, self.volname, options) + self.assertTrue(ret, "Failed to set volume options") + g.log.info("Successfully set volume options") + + # Creating 10000 files on volume root + m_point = self.mounts[0].mountpoint + command = 'touch ' + m_point + '/file{1..10000}_0' + ret, _, _ = g.run(self.clients[0], command) + self.assertEqual(ret, 0, "File creation failed on %s" + % m_point) + g.log.info("Files successfully created on the mount point") + + # Add bricks to the volume + ret = expand_volume(self.mnode, self.volname, self.servers, + self.all_servers_info) + self.assertTrue(ret, ("Failed to expand the volume %s", + self.volname)) + g.log.info("Expanding volume is successful on " + "volume %s", self.volname) + + # Perform fix-layout on the volume + ret, _, _ = rebalance_start(self.mnode, self.volname, fix_layout=True) + self.assertEqual(ret, 0, 'Failed to start rebalance') + g.log.info('Rebalance is started') + + # Wait for fix-layout to complete + ret = wait_for_fix_layout_to_complete(self.mnode, self.volname, + timeout=300) + self.assertTrue(ret, ("Fix-layout failed on volume %s", + self.volname)) + g.log.info("Fix-layout is successful on " + "volume %s", self.volname) + + # Rename all files from client node + for i in range(1, 10000): + ret = move_file(self.clients[0], + '{}/file{}_0'.format(m_point, i), + '{}/file{}_1'.format(m_point, i)) + self.assertTrue(ret, "Failed to rename files") + g.log.info("Files renamed successfully") + + # Perform lookup from the mount-point + cmd = "ls -lR " + m_point + ret, _, _ = g.run(self.mounts[0].client_system, cmd) + self.assertEqual(ret, 0, "Failed to lookup") + g.log.info("Lookup successful") -- cgit