--- /dev/null
+"""
+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)
Code Review / stor4nfv.git / blobdiff