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| -rw-r--r-- | tests/functional/arbiter/test_afr_read_write.py | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/tests/functional/arbiter/test_afr_read_write.py b/tests/functional/arbiter/test_afr_read_write.py new file mode 100644 index 000000000..09e6a3a2a --- /dev/null +++ b/tests/functional/arbiter/test_afr_read_write.py @@ -0,0 +1,192 @@ +# 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 random import sample +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.volume_libs import ( + verify_all_process_of_volume_are_online, + wait_for_volume_process_to_be_online) +from glustolibs.gluster.brick_libs import ( + get_all_bricks, + bring_bricks_offline, + bring_bricks_online, + are_bricks_offline) +from glustolibs.gluster.heal_libs import (monitor_heal_completion, + is_volume_in_split_brain) +from glustolibs.gluster.glusterdir import mkdir +from glustolibs.io.utils import validate_io_procs + + +@runs_on([['arbiter', 'distributed-arbiter'], ['glusterfs']]) +class TestAfrReadWrite(GlusterBaseClass): + + """ + Description: + Arbiter test writes and reads from a file + """ + def setUp(self): + # Calling GlusterBaseClass + self.get_super_method(self, 'setUp')() + + # Setup Volume and Mount Volume + ret = self.setup_volume_and_mount_volume(mounts=self.mounts) + if not ret: + raise ExecutionError("Failed to Setup_Volume and Mount_Volume") + + def tearDown(self): + """ + Cleanup and umount volume + """ + # Cleanup and umount volume + ret = self.unmount_volume_and_cleanup_volume(mounts=self.mounts) + if not ret: + raise ExecutionError("Failed to umount the vol & cleanup Volume") + + # Calling GlusterBaseClass teardown + self.get_super_method(self, 'tearDown')() + + def _bring_bricks_online_heal(self, mnode, volname, bricks_list): + """ + Bring bricks online and monitor heal completion + """ + # Bring bricks online + ret = bring_bricks_online( + mnode, volname, bricks_list, + bring_bricks_online_methods=['volume_start_force']) + self.assertTrue(ret, 'Failed to bring bricks online') + + # Wait for volume processes to be online + ret = wait_for_volume_process_to_be_online(mnode, volname) + self.assertTrue(ret, ("Failed to wait for volume {} processes to " + "be online".format(volname))) + + # Verify volume's all process are online + ret = verify_all_process_of_volume_are_online(mnode, volname) + self.assertTrue(ret, ("Volume {} : All process are not online".format + (volname))) + g.log.info("Volume %s : All process are online", volname) + + # Monitor heal completion + ret = monitor_heal_completion(mnode, volname) + self.assertTrue(ret, 'Heal has not yet completed') + + # Check for split-brain + ret = is_volume_in_split_brain(mnode, volname) + self.assertFalse(ret, 'Volume is in split-brain state') + + def test_afr_read_write(self): + """ + Test read and write of file + Description: + - Get the bricks from the volume + - Creating directory test_write_and_read_file + - Write from 1st client + - Read from 2nd client + - Select brick to bring offline + - Bring brick offline + - Validating IO's on client1 + - Validating IO's on client2 + - Bring bricks online + - Wait for volume processes to be online + - Verify volume's all process are online + - Monitor heal completion + - Check for split-brain + - Bring 2nd brick offline + - Check if brick is offline + - Write from 1st client + - Read from 2nd client + - Bring bricks online + - Wait for volume processes to be online + - Verify volume's all process are online + - Monitor heal completion + - Check for split-brain + + - Get arequal after getting bricks online + """ + # pylint: disable=too-many-branches,too-many-statements,too-many-locals + # Get the bricks from the volume + bricks_list = get_all_bricks(self.mnode, self.volname) + g.log.info("Brick List : %s", bricks_list) + + # Creating directory test_write_and_read_file + ret = mkdir(self.mounts[0].client_system, + "{}/test_write_and_read_file" + .format(self.mounts[0].mountpoint)) + self.assertTrue(ret, "Failed to create directory") + g.log.info("Directory 'test_write_and_read_file' on %s created " + "successfully", self.mounts[0]) + + # Write from 1st client + cmd_to_write = ( + 'cd %s/test_write_and_read_file ; for i in `seq 1 5000` ;' + 'do echo -e "Date:`date`\n" >> test_file ;echo -e "' + '`cal`\n" >> test_file ; done ; cd ..' + % self.mounts[0].mountpoint) + proc1 = g.run_async(self.mounts[0].client_system, + cmd_to_write) + + # Read from 2nd client + cmd = ('cd %s/ ;for i in {1..30};' + 'do cat test_write_and_read_file/test_file;done' + % self.mounts[1].mountpoint) + proc2 = g.run_async(self.mounts[1].client_system, cmd) + + # Bring brick offline + bricks_to_bring_offline = sample(bricks_list, 2) + ret = bring_bricks_offline(self.volname, bricks_to_bring_offline[0]) + self.assertTrue(ret, 'Failed to bring bricks {} offline'. + format(bricks_to_bring_offline)) + + # Check brick is offline + ret = are_bricks_offline(self.mnode, self.volname, + [bricks_to_bring_offline[0]]) + self.assertTrue(ret, 'Bricks {} are not offline'. + format(bricks_to_bring_offline[0])) + + # Validating IO's + for proc, mount in zip([proc1, proc2], self.mounts): + ret = validate_io_procs([proc], mount) + self.assertTrue(ret, "IO failed on client") + g.log.info("Successfully validated all IO's") + + self._bring_bricks_online_heal(self.mnode, self.volname, bricks_list) + + # Bring down second brick + ret = bring_bricks_offline(self.volname, bricks_to_bring_offline[1]) + self.assertTrue(ret, 'Failed to bring bricks {} offline'. + format(bricks_to_bring_offline[1])) + + # Check if brick is offline + ret = are_bricks_offline(self.mnode, self.volname, + [bricks_to_bring_offline[1]]) + self.assertTrue(ret, 'Bricks {} are not offline'. + format(bricks_to_bring_offline[1])) + + # Write from 1st client + ret, _, _ = g.run(self.mounts[0].client_system, cmd_to_write) + self.assertEqual(ret, 0, "Failed to write to file") + g.log.info("Successfully written to file") + + # Read from 2nd client + cmd = ('cd %s/ ;cat test_write_and_read_file/test_file' + % self.mounts[0].mountpoint) + ret, _, _ = g.run(self.mounts[0].client_system, cmd) + self.assertEqual(ret, 0, "Failed to read file on mountpoint") + g.log.info("Successfully read file on mountpoint") + + self._bring_bricks_online_heal(self.mnode, self.volname, bricks_list) |