diff options
Diffstat (limited to 'src/ceph/qa/tasks/cephfs/test_scrub_checks.py')
| -rw-r--r-- | src/ceph/qa/tasks/cephfs/test_scrub_checks.py | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/ceph/qa/tasks/cephfs/test_scrub_checks.py b/src/ceph/qa/tasks/cephfs/test_scrub_checks.py new file mode 100644 index 0000000..a2de527 --- /dev/null +++ b/src/ceph/qa/tasks/cephfs/test_scrub_checks.py @@ -0,0 +1,245 @@ +""" +MDS admin socket scrubbing-related tests. +""" +import json +import logging +import errno +import time +from teuthology.exceptions import CommandFailedError +import os +from tasks.cephfs.cephfs_test_case import CephFSTestCase + +log = logging.getLogger(__name__) + + +class TestScrubChecks(CephFSTestCase): + """ + Run flush and scrub commands on the specified files in the filesystem. This + task will run through a sequence of operations, but it is not comprehensive + on its own -- it doesn't manipulate the mds cache state to test on both + in- and out-of-memory parts of the hierarchy. So it's designed to be run + multiple times within a single test run, so that the test can manipulate + memory state. + + Usage: + mds_scrub_checks: + mds_rank: 0 + path: path/to/test/dir + client: 0 + run_seq: [0-9]+ + + Increment the run_seq on subsequent invocations within a single test run; + it uses that value to generate unique folder and file names. + """ + + MDSS_REQUIRED = 1 + CLIENTS_REQUIRED = 1 + + def test_scrub_checks(self): + self._checks(0) + self._checks(1) + + def _checks(self, run_seq): + mds_rank = 0 + test_dir = "scrub_test_path" + + abs_test_path = "/{0}".format(test_dir) + + log.info("mountpoint: {0}".format(self.mount_a.mountpoint)) + client_path = os.path.join(self.mount_a.mountpoint, test_dir) + log.info("client_path: {0}".format(client_path)) + + log.info("Cloning repo into place") + repo_path = self.clone_repo(self.mount_a, client_path) + + log.info("Initiating mds_scrub_checks on mds.{id_}, " + + "test_path {path}, run_seq {seq}".format( + id_=mds_rank, path=abs_test_path, seq=run_seq) + ) + + + success_validator = lambda j, r: self.json_validator(j, r, "return_code", 0) + + nep = "{test_path}/i/dont/exist".format(test_path=abs_test_path) + self.asok_command(mds_rank, "flush_path {nep}".format(nep=nep), + lambda j, r: self.json_validator(j, r, "return_code", -errno.ENOENT)) + self.asok_command(mds_rank, "scrub_path {nep}".format(nep=nep), + lambda j, r: self.json_validator(j, r, "return_code", -errno.ENOENT)) + + test_repo_path = "{test_path}/ceph-qa-suite".format(test_path=abs_test_path) + dirpath = "{repo_path}/suites".format(repo_path=test_repo_path) + + if run_seq == 0: + log.info("First run: flushing {dirpath}".format(dirpath=dirpath)) + command = "flush_path {dirpath}".format(dirpath=dirpath) + self.asok_command(mds_rank, command, success_validator) + command = "scrub_path {dirpath}".format(dirpath=dirpath) + self.asok_command(mds_rank, command, success_validator) + + filepath = "{repo_path}/suites/fs/verify/validater/valgrind.yaml".format( + repo_path=test_repo_path) + if run_seq == 0: + log.info("First run: flushing {filepath}".format(filepath=filepath)) + command = "flush_path {filepath}".format(filepath=filepath) + self.asok_command(mds_rank, command, success_validator) + command = "scrub_path {filepath}".format(filepath=filepath) + self.asok_command(mds_rank, command, success_validator) + + filepath = "{repo_path}/suites/fs/basic/clusters/fixed-3-cephfs.yaml". \ + format(repo_path=test_repo_path) + command = "scrub_path {filepath}".format(filepath=filepath) + self.asok_command(mds_rank, command, + lambda j, r: self.json_validator(j, r, "performed_validation", + False)) + + if run_seq == 0: + log.info("First run: flushing base dir /") + command = "flush_path /" + self.asok_command(mds_rank, command, success_validator) + command = "scrub_path /" + self.asok_command(mds_rank, command, success_validator) + + new_dir = "{repo_path}/new_dir_{i}".format(repo_path=repo_path, i=run_seq) + test_new_dir = "{repo_path}/new_dir_{i}".format(repo_path=test_repo_path, + i=run_seq) + self.mount_a.run_shell(["mkdir", new_dir]) + command = "flush_path {dir}".format(dir=test_new_dir) + self.asok_command(mds_rank, command, success_validator) + + new_file = "{repo_path}/new_file_{i}".format(repo_path=repo_path, + i=run_seq) + test_new_file = "{repo_path}/new_file_{i}".format(repo_path=test_repo_path, + i=run_seq) + self.mount_a.write_n_mb(new_file, 1) + + command = "flush_path {file}".format(file=test_new_file) + self.asok_command(mds_rank, command, success_validator) + + # check that scrub fails on errors + ino = self.mount_a.path_to_ino(new_file) + rados_obj_name = "{ino:x}.00000000".format(ino=ino) + command = "scrub_path {file}".format(file=test_new_file) + + # Missing parent xattr -> ENODATA + self.fs.rados(["rmxattr", rados_obj_name, "parent"], pool=self.fs.get_data_pool_name()) + self.asok_command(mds_rank, command, + lambda j, r: self.json_validator(j, r, "return_code", -errno.ENODATA)) + + # Missing object -> ENOENT + self.fs.rados(["rm", rados_obj_name], pool=self.fs.get_data_pool_name()) + self.asok_command(mds_rank, command, + lambda j, r: self.json_validator(j, r, "return_code", -errno.ENOENT)) + + command = "flush_path /" + self.asok_command(mds_rank, command, success_validator) + + def test_scrub_repair(self): + mds_rank = 0 + test_dir = "scrub_repair_path" + + self.mount_a.run_shell(["sudo", "mkdir", test_dir]) + self.mount_a.run_shell(["sudo", "touch", "{0}/file".format(test_dir)]) + dir_objname = "{:x}.00000000".format(self.mount_a.path_to_ino(test_dir)) + + self.mount_a.umount_wait() + + # flush journal entries to dirfrag objects, and expire journal + self.fs.mds_asok(['flush', 'journal']) + self.fs.mds_stop() + + # remove the dentry from dirfrag, cause incorrect fragstat/rstat + self.fs.rados(["rmomapkey", dir_objname, "file_head"], + pool=self.fs.get_metadata_pool_name()) + + self.fs.mds_fail_restart() + self.fs.wait_for_daemons() + + self.mount_a.mount() + self.mount_a.wait_until_mounted() + + # fragstat indicates the directory is not empty, rmdir should fail + with self.assertRaises(CommandFailedError) as ar: + self.mount_a.run_shell(["sudo", "rmdir", test_dir]) + self.assertEqual(ar.exception.exitstatus, 1) + + self.asok_command(mds_rank, "scrub_path /{0} repair".format(test_dir), + lambda j, r: self.json_validator(j, r, "return_code", 0)) + + # wait a few second for background repair + time.sleep(10) + + # fragstat should be fixed + self.mount_a.run_shell(["sudo", "rmdir", test_dir]) + + @staticmethod + def json_validator(json_out, rc, element, expected_value): + if rc != 0: + return False, "asok command returned error {rc}".format(rc=rc) + element_value = json_out.get(element) + if element_value != expected_value: + return False, "unexpectedly got {jv} instead of {ev}!".format( + jv=element_value, ev=expected_value) + return True, "Succeeded" + + def asok_command(self, mds_rank, command, validator): + log.info("Running command '{command}'".format(command=command)) + + command_list = command.split() + + # we just assume there's an active mds for every rank + mds_id = self.fs.get_active_names()[mds_rank] + proc = self.fs.mon_manager.admin_socket('mds', mds_id, + command_list, check_status=False) + rout = proc.exitstatus + sout = proc.stdout.getvalue() + + if sout.strip(): + jout = json.loads(sout) + else: + jout = None + + log.info("command '{command}' got response code " + + "'{rout}' and stdout '{sout}'".format( + command=command, rout=rout, sout=sout)) + + success, errstring = validator(jout, rout) + + if not success: + raise AsokCommandFailedError(command, rout, jout, errstring) + + return jout + + def clone_repo(self, client_mount, path): + repo = "ceph-qa-suite" + repo_path = os.path.join(path, repo) + client_mount.run_shell(["mkdir", "-p", path]) + + try: + client_mount.stat(repo_path) + except CommandFailedError: + client_mount.run_shell([ + "git", "clone", '--branch', 'giant', + "http://github.com/ceph/{repo}".format(repo=repo), + "{path}/{repo}".format(path=path, repo=repo) + ]) + + return repo_path + + +class AsokCommandFailedError(Exception): + """ + Exception thrown when we get an unexpected response + on an admin socket command + """ + + def __init__(self, command, rc, json_out, errstring): + self.command = command + self.rc = rc + self.json = json_out + self.errstring = errstring + + def __str__(self): + return "Admin socket: {command} failed with rc={rc}," + \ + "json output={json}, because '{es}'".format( + command=self.command, rc=self.rc, + json=self.json, es=self.errstring) |