# Copyright (C) 2015-2016 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. import sys 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 get_subvols from glustolibs.gluster.brick_libs import (bring_bricks_offline, are_bricks_offline, get_all_bricks) from glustolibs.gluster.heal_ops import get_heal_info_summary from glustolibs.misc.misc_libs import upload_scripts from glustolibs.io.utils import (validate_io_procs, list_all_files_and_dirs_mounts, wait_for_io_to_complete) @runs_on([['distributed-replicated'], ['glusterfs']]) class TestSelfHeal(GlusterBaseClass): """ Description: Test cases related to healing in default configuration of the volume """ @classmethod def setUpClass(cls): # Calling GlusterBaseClass setUpClass cls.get_super_method(cls, 'setUpClass')() # Upload io scripts for running IO on mounts g.log.info("Upload io scripts to clients %s for running IO on mounts", cls.clients) cls.script_upload_path = ("/usr/share/glustolibs/io/scripts/" "file_dir_ops.py") ret = upload_scripts(cls.clients, cls.script_upload_path) if not ret: raise ExecutionError("Failed to upload IO scripts to clients %s" % cls.clients) g.log.info("Successfully uploaded IO scripts to clients %s", cls.clients) cls.counter = 1 # int: Value of counter is used for dirname-start-num argument for # file_dir_ops.py create_deep_dirs_with_files. # The --dir-length argument value for file_dir_ops.py # create_deep_dirs_with_files is set to 10 (refer to the cmd in setUp # method). This means every mount will create # 10 top level dirs. For every mountpoint/testcase to create new set of # dirs, we are incrementing the counter by --dir-length value i.e 10 in # this test suite. # If we are changing the --dir-length to new value, ensure the counter # is also incremented by same value to create new set of files/dirs. def setUp(self): # Calling GlusterBaseClass setUp self.get_super_method(self, 'setUp')() self.all_mounts_procs = [] self.io_validation_complete = False # Setup Volume and Mount Volume g.log.info("Starting to Setup Volume and Mount Volume") ret = self.setup_volume_and_mount_volume(mounts=self.mounts, volume_create_force=False) if not ret: raise ExecutionError("Failed to Setup_Volume and Mount_Volume") g.log.info("Successful in Setup Volume and Mount Volume") self.bricks_list = get_all_bricks(self.mnode, self.volname) def tearDown(self): """ If test method failed before validating IO, tearDown waits for the IO's to complete and checks for the IO exit status Cleanup and umount volume """ if not self.io_validation_complete: g.log.info("Wait for IO to complete as IO validation did not " "succeed in test method") ret = wait_for_io_to_complete(self.all_mounts_procs, self.mounts) if not ret: raise ExecutionError("IO failed on some of the clients") g.log.info("IO is successful on all mounts") # List all files and dirs created g.log.info("List all files and directories:") ret = list_all_files_and_dirs_mounts(self.mounts) if not ret: raise ExecutionError("Failed to list all files and dirs") g.log.info("Listing all files and directories is successful") # Cleanup and umount volume g.log.info("Starting to Unmount Volume and Cleanup 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") # Calling GlusterBaseClass teardown self.get_super_method(self, 'tearDown')() def test_heal_info_shouldnot_list_files_being_accessed(self): """ - bring brick 1 offline - create files and validate IO - get entries before accessing file - get first filename from active subvol without offline bricks - access and modify the file - while accessing - get entries - Compare entries before accessing and while accessing - validate IO """ # Bring 1-st brick offline brick_to_bring_offline = [self.bricks_list[0]] g.log.info('Bringing bricks %s offline...', brick_to_bring_offline) ret = bring_bricks_offline(self.volname, brick_to_bring_offline) self.assertTrue(ret, 'Failed to bring bricks %s offline' % brick_to_bring_offline) ret = are_bricks_offline(self.mnode, self.volname, brick_to_bring_offline) self.assertTrue(ret, 'Bricks %s are not offline' % brick_to_bring_offline) g.log.info('Bringing bricks %s offline is successful', brick_to_bring_offline) # Creating files on client side for mount_obj in self.mounts: g.log.info("Generating data for %s:%s", mount_obj.client_system, mount_obj.mountpoint) # Creating files cmd = "/usr/bin/env python%d %s create_files -f 100 %s" % ( sys.version_info.major, self.script_upload_path, mount_obj.mountpoint) proc = g.run_async(mount_obj.client_system, cmd, user=mount_obj.user) self.all_mounts_procs.append(proc) # Validate IO self.assertTrue( validate_io_procs(self.all_mounts_procs, self.mounts), "IO failed on some of the clients" ) self.io_validation_complete = True # Get entries before accessing file g.log.info("Getting entries_before_accessing file...") entries_before_accessing = get_heal_info_summary( self.mnode, self.volname) self.assertNotEqual(entries_before_accessing, None, 'Can`t get heal info summary') g.log.info( "Getting entries_before_accessing file finished successfully") # Get filename to access from active subvol without offline bricks # Get last subvol subvols = get_subvols(self.mnode, self.volname) subvol_without_offline_brick = subvols['volume_subvols'][-1] # Get first brick server and brick path # and get first file from filelist subvol_mnode, mnode_brick = subvol_without_offline_brick[0].split(':') ret, file_list, _ = g.run(subvol_mnode, 'ls %s' % mnode_brick) file_to_edit = file_list.splitlines()[0] # Access and modify the file g.log.info("Start modifying IO on all mounts...") self.all_mounts_procs = [] for mount_obj in self.mounts: g.log.info("Modifying IO on %s:%s", mount_obj.client_system, mount_obj.mountpoint) cmd = ("cd %s/ ; " "dd if=/dev/zero of=%s bs=1G count=1" % (mount_obj.mountpoint, file_to_edit)) proc = g.run_async(mount_obj.client_system, cmd, user=mount_obj.user) self.all_mounts_procs.append(proc) g.log.info("IO on %s:%s is modified successfully", mount_obj.client_system, mount_obj.mountpoint) self.io_validation_complete = False # Get entries while accessing file g.log.info("Getting entries while accessing file...") entries_while_accessing = get_heal_info_summary( self.mnode, self.volname) self.assertNotEqual(entries_before_accessing, None, 'Can`t get heal info summary') g.log.info("Getting entries while accessing file " "finished successfully") # Compare dicts before accessing and while accessing g.log.info('Comparing entries before modifying and while modifying...') self.assertDictEqual(entries_before_accessing, entries_while_accessing) g.log.info('Comparison entries before modifying and while modifying' 'finished successfully.') # Validate IO self.assertTrue( validate_io_procs(self.all_mounts_procs, self.mounts), "IO failed on some of the clients" ) self.io_validation_complete = True