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Diffstat (limited to 'tests/functional/dht/test_open_file_migration.py')
| -rw-r--r-- | tests/functional/dht/test_open_file_migration.py | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/tests/functional/dht/test_open_file_migration.py b/tests/functional/dht/test_open_file_migration.py new file mode 100644 index 000000000..55709cdb7 --- /dev/null +++ b/tests/functional/dht/test_open_file_migration.py @@ -0,0 +1,131 @@ +# 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.exceptions import ExecutionError +from glustolibs.gluster.gluster_base_class import GlusterBaseClass, runs_on +from glustolibs.io.utils import open_file_fd +from glustolibs.gluster.volume_libs import expand_volume +from glustolibs.gluster.rebalance_ops import (rebalance_start, + wait_for_rebalance_to_complete, + get_rebalance_status) + + +@runs_on([['distributed', 'replicated', 'arbiter', + 'dispersed'], + ['glusterfs']]) +class TestOpenFileMigration(GlusterBaseClass): + def setUp(self): + # Calling GlusterBaseClass setUp + 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 + """ + # Calling GlusterBaseClass teardown + self.get_super_method(self, 'tearDown')() + + # 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") + g.log.info("Successful in umounting the volume and Cleanup") + + def test_open_file_migration(self): + """ + Description: Checks that files with open fd are migrated successfully. + + Steps : + 1) Create a volume. + 2) Mount the volume using FUSE. + 3) Create files on volume mount. + 4) Open fd for the files and keep on doing read write operations on + these files. + 5) While fds are open, add bricks to the volume and trigger rebalance. + 6) Wait for rebalance to complete. + 7) Wait for write on open fd to complete. + 8) Check for any data loss during rebalance. + 9) Check if rebalance has any failures. + """ + # Create files and open fd for the files on mount point + m_point = self.mounts[0].mountpoint + cmd = ('cd {}; for i in `seq 261 1261`;do touch testfile$i;' + 'done'.format(m_point)) + ret, _, _ = g.run(self.clients[0], cmd) + self.assertEqual(ret, 0, "Failed to create files") + g.log.info("Successfully created files") + proc = open_file_fd(m_point, 2, self.clients[0], + start_range=301, end_range=400) + + # Calculate file count for the mount-point + cmd = ("ls -lR {}/testfile* | wc -l".format(m_point)) + ret, count_before, _ = g.run(self.clients[0], cmd) + self.assertEqual(ret, 0, "Failed to get file count") + g.log.info("File count before rebalance is:%s", count_before) + + # 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) + + # Trigger rebalance + ret, _, _ = rebalance_start(self.mnode, self.volname) + self.assertEqual(ret, 0, "Failed to start rebalance") + g.log.info("Rebalance is started") + + # Wait for rebalance to complete + ret = wait_for_rebalance_to_complete(self.mnode, self.volname, + timeout=300) + self.assertTrue(ret, ("Rebalance failed on volume %s", + self.volname)) + g.log.info("Rebalance is successful on " + "volume %s", self.volname) + + # Close connection and check if write on open fd has completed + ret, _, _ = proc.async_communicate() + self.assertEqual(ret, 0, "Write on open fd" + " has not completed yet") + g.log.info("Write completed on open fd") + + # Calculate file count for the mount-point + cmd = ("ls -lR {}/testfile* | wc -l".format(m_point)) + ret, count_after, _ = g.run(self.clients[0], cmd) + self.assertEqual(ret, 0, "Failed to get file count") + g.log.info("File count after rebalance is:%s", count_after) + + # Check if there is any data loss + self.assertEqual(int(count_before), int(count_after), + "The file count before and after" + " rebalance is not same." + " There is data loss.") + g.log.info("The file count before and after rebalance is same." + " No data loss occurred.") + + # Check if rebalance has any failures + ret = get_rebalance_status(self.mnode, self.volname) + no_of_failures = ret['aggregate']['failures'] + self.assertEqual(int(no_of_failures), 0, + "Failures in rebalance") + g.log.info("No failures in rebalance") |