diff options
Diffstat (limited to 'tests/functional/glusterfind/test_glusterfind_when_node_down.py')
| -rw-r--r-- | tests/functional/glusterfind/test_glusterfind_when_node_down.py | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/tests/functional/glusterfind/test_glusterfind_when_node_down.py b/tests/functional/glusterfind/test_glusterfind_when_node_down.py new file mode 100644 index 000000000..1d8b2572a --- /dev/null +++ b/tests/functional/glusterfind/test_glusterfind_when_node_down.py @@ -0,0 +1,280 @@ +# 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: + Test Glusterfind when node is down +""" + +from random import choice +from time import sleep +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 +from glustolibs.gluster.peer_ops import wait_for_peers_to_connect +from glustolibs.gluster.lib_utils import list_files +from glustolibs.gluster.glusterfile import ( + file_exists, + remove_file, + check_if_pattern_in_file) +from glustolibs.gluster.glusterfind_ops import ( + gfind_create, + gfind_list, + gfind_pre, + gfind_post, + gfind_delete) +from glustolibs.gluster.gluster_init import ( + stop_glusterd, + start_glusterd, + wait_for_glusterd_to_start) +from glustolibs.misc.misc_libs import ( + reboot_nodes, + are_nodes_online) + + +@runs_on([["replicated", "distributed-replicated", "dispersed", + "distributed", "distributed-dispersed"], + ["glusterfs"]]) +class TestGlusterFindNodeDown(GlusterBaseClass): + """ + Test glusterfind operation when a node is down. + """ + + def setUp(self): + """ + setup volume and mount volume + Initiate necessary variables + """ + + # calling GlusterBaseClass setUp + self.get_super_method(self, 'setUp')() + + self.file_limit = 0 + + # Setup Volume and Mount Volume + ret = self.setup_volume_and_mount_volume(mounts=self.mounts) + if not ret: + raise ExecutionError("Failed to Setup_Volume %s" % self.volname) + g.log.info("Successful in Setup Volume %s", self.volname) + self.session = "test-session-%s" % self.volname + self.outfiles = [("/tmp/test-outfile-%s-%s.txt" + % (self.volname, i))for i in range(0, 2)] + + # Set the changelog rollover-time to 1 second + # This needs to be done in order for glusterfind to keep checking + # for changes in the mount point + option = {'changelog.rollover-time': '1'} + ret = set_volume_options(self.mnode, self.volname, option) + if not ret: + raise ExecutionError("Failed to set the volume option %s for %s" + % (option, self.volname)) + g.log.info("Successfully set the volume option for the volume %s", + self.volname) + + def _perform_io_and_validate_presence_of_files(self): + """ + Function to perform the IO and validate the presence of files. + """ + self.file_limit += 10 + # Starting IO on the mounts + cmd = ("cd %s ; touch file{%d..%d}" % (self.mounts[0].mountpoint, + self.file_limit-10, + self.file_limit)) + + ret, _, _ = g.run(self.mounts[0].client_system, cmd) + self.assertEqual(ret, 0, "Failed to create files on mountpoint") + g.log.info("Files created successfully on mountpoint") + + # Gather the list of files from the mount point + files = list_files(self.mounts[0].client_system, + self.mounts[0].mountpoint) + self.assertIsNotNone(files, "Failed to get the list of files") + g.log.info("Successfully gathered the list of files from mount point") + + # Check if the files exist + for filename in files: + ret = file_exists(self.mounts[0].client_system, filename) + self.assertTrue(ret, ("Unexpected: File '%s' does not exist" + % filename)) + g.log.info("Successfully validated existence of '%s'", filename) + + def _perform_glusterfind_pre_and_validate_outfile(self): + """ + Function to perform glusterfind pre and validate outfile + """ + # Perform glusterfind pre for the session + ret, _, _ = gfind_pre(self.mnode, self.volname, self.session, + self.outfiles[0], full=True, noencode=True, + debug=True) + self.assertEqual(ret, 0, ("Failed to perform glusterfind pre")) + g.log.info("Successfully performed glusterfind pre") + + # Check if the outfile exists + ret = file_exists(self.mnode, self.outfiles[0]) + self.assertTrue(ret, ("Unexpected: File '%s' does not exist" + % self.outfiles[0])) + g.log.info("Successfully validated existence of '%s'", + self.outfiles[0]) + + # Check if all the files are listed in the outfile + for i in range(1, self.file_limit+1): + ret = check_if_pattern_in_file(self.mnode, "file%s" % i, + self.outfiles[0]) + self.assertEqual(ret, 0, ("File 'file%s' not listed in %s" + % (i, self.outfiles[0]))) + g.log.info("File 'file%s' listed in %s", i, self.outfiles[0]) + + def test_gfind_when_node_down(self): + """ + Verifying the glusterfind functionality when node is down. + + 1. Create a volume + 2. Create a session on the volume + 3. Create various files from mount point + 4. Bring down glusterd on one of the node + 5. Perform glusterfind pre + 6. Perform glusterfind post + 7. Check the contents of outfile + 8. Create more files from mountpoint + 9. Reboot one of the nodes + 10. Perform gluserfind pre + 11. Perform glusterfind post + 12. Check the contents of outfile + """ + + # pylint: disable=too-many-statements + # Create a session for the volume + ret, _, _ = gfind_create(self.mnode, self.volname, self.session) + self.assertEqual(ret, 0, ("Unexpected: Creation of a session for the " + "volume %s failed" % self.volname)) + g.log.info("Successfully created a session for the volume %s", + self.volname) + + # Perform glusterfind list to check if session exists + _, out, _ = gfind_list(self.mnode, volname=self.volname, + sessname=self.session) + self.assertNotEqual(out, "No sessions found.", + "Failed to list the glusterfind session") + g.log.info("Successfully listed the glusterfind session") + + self._perform_io_and_validate_presence_of_files() + + # Wait for changelog to get updated + sleep(2) + + # Bring one of the node down. + self.random_server = choice(self.servers[1:]) + ret = stop_glusterd(self.random_server) + self.assertTrue(ret, "Failed to stop glusterd on one node.") + g.log.info("Succesfully stopped glusterd on one node.") + + self._perform_glusterfind_pre_and_validate_outfile() + + # Perform glusterfind post for the session + ret, _, _ = gfind_post(self.mnode, self.volname, self.session) + self.assertEqual(ret, 0, ("Failed to perform glusterfind post")) + g.log.info("Successfully performed glusterfind post") + + # Bring glusterd which was downed on a random node, up. + ret = start_glusterd(self.random_server) + self.assertTrue(ret, "Failed to start glusterd on %s" + % self.random_server) + g.log.info("Successfully started glusterd on node : %s", + self.random_server) + + # Waiting for glusterd to start completely. + ret = wait_for_glusterd_to_start(self.random_server) + self.assertTrue(ret, "glusterd is not running on %s" + % self.random_server) + g.log.info("glusterd is started and running on %s", + self.random_server) + + self._perform_io_and_validate_presence_of_files() + + # Perform IO + self._perform_io_and_validate_presence_of_files() + + # Wait for changelog to get updated + sleep(2) + + # Reboot one of the nodes. + self.random_server = choice(self.servers[1:]) + ret = reboot_nodes(self.random_server) + self.assertTrue(ret, "Failed to reboot the said node.") + g.log.info("Successfully started reboot process on one node.") + + self._perform_glusterfind_pre_and_validate_outfile() + + # Perform glusterfind post for the session + ret, _, _ = gfind_post(self.mnode, self.volname, self.session) + self.assertEqual(ret, 0, ("Failed to perform glusterfind post")) + g.log.info("Successfully performed glusterfind post") + + # Gradual sleep backoff till the node has rebooted. + counter = 0 + timeout = 300 + ret = False + while counter < timeout: + ret, _ = are_nodes_online(self.random_server) + if not ret: + g.log.info("Node's offline, Retrying after 5 seconds ...") + sleep(5) + counter += 5 + else: + ret = True + break + self.assertTrue(ret, "Node is still offline.") + g.log.info("Rebooted node is online") + + # Wait for glusterd to start completely + ret = wait_for_glusterd_to_start(self.random_server) + self.assertTrue(ret, "glusterd is not running on %s" + % self.random_server) + g.log.info("glusterd is started and running on %s", + self.random_server) + + def tearDown(self): + """ + tearDown for every test + Clean up and unmount the volume + """ + # calling GlusterBaseClass tearDown + self.get_super_method(self, 'tearDown')() + + # Delete the glusterfind sessions + ret, _, _ = gfind_delete(self.mnode, self.volname, self.session) + if ret: + raise ExecutionError("Failed to delete session %s" % self.session) + g.log.info("Successfully deleted session %s", self.session) + + # Remove the outfiles created during 'glusterfind pre' + for out in self.outfiles: + ret = remove_file(self.mnode, out, force=True) + if not ret: + raise ExecutionError("Failed to remove the outfile %s" % out) + g.log.info("Successfully removed the outfiles") + + # Wait for the peers to be connected. + ret = wait_for_peers_to_connect(self.mnode, self.servers, 100) + if not ret: + raise ExecutionError("Peers are not in connected state.") + + # Cleanup the volume + ret = self.unmount_volume_and_cleanup_volume(mounts=self.mounts) + if not ret: + raise ExecutionError("Failed to Cleanup Volume") + g.log.info("Successful in Cleanup Volume") |