mirror of
https://github.com/ceph/ceph
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2b5137bf06
...to avoid having boilerplate in each test module, and gain the ability to run them all in one go with a nice test-by-test pass/fail report. Signed-off-by: John Spray <john.spray@redhat.com>
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
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"""
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Exercise the MDS's auto repair functions
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"""
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import logging
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import time
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from teuthology.orchestra.run import CommandFailedError
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from tasks.cephfs.cephfs_test_case import CephFSTestCase
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log = logging.getLogger(__name__)
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# Arbitrary timeouts for operations involving restarting
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# an MDS or waiting for it to come up
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MDS_RESTART_GRACE = 60
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class TestMDSAutoRepair(CephFSTestCase):
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def test_backtrace_repair(self):
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"""
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MDS should verify/fix backtrace on fetch dirfrag
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"""
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# trim log segment as fast as possible
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self.set_conf('mds', 'mds cache size', 100)
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self.set_conf('mds', 'mds verify backtrace', 1)
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self.fs.mds_fail_restart()
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self.fs.wait_for_daemons()
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create_script = "mkdir {0}; for i in `seq 0 500`; do touch {0}/file$i; done"
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# create main test directory
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self.mount_a.run_shell(["sudo", "bash", "-c", create_script.format("testdir1")])
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# create more files in another directory. make sure MDS trim dentries in testdir1
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self.mount_a.run_shell(["sudo", "bash", "-c", create_script.format("testdir2")])
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# flush journal entries to dirfrag objects
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self.fs.mds_asok(['flush', 'journal'])
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# drop inodes caps
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self.mount_a.umount_wait()
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self.mount_a.mount()
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self.mount_a.wait_until_mounted()
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# wait MDS to trim dentries in testdir1. 60 seconds should be long enough.
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time.sleep(60)
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# remove testdir1's backtrace
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proc = self.mount_a.run_shell(["sudo", "ls", "-id", "testdir1"])
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self.assertEqual(proc.exitstatus, 0)
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objname = "{:x}.00000000".format(long(proc.stdout.getvalue().split()[0]))
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proc = self.mount_a.run_shell(["sudo", "rados", "-p", "metadata", "rmxattr", objname, "parent"])
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self.assertEqual(proc.exitstatus, 0)
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# readdir (fetch dirfrag) should fix testdir1's backtrace
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self.mount_a.run_shell(["sudo", "ls", "testdir1"])
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# add more entries to journal
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self.mount_a.run_shell(["sudo", "rm", "-rf", " testdir2"])
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# flush journal entries to dirfrag objects
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self.fs.mds_asok(['flush', 'journal'])
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# check if backtrace exists
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proc = self.mount_a.run_shell(["sudo", "rados", "-p", "metadata", "getxattr", objname, "parent"])
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self.assertEqual(proc.exitstatus, 0)
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def test_mds_readonly(self):
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"""
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test if MDS behave correct when it's readonly
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"""
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# operation should successd when MDS is not readonly
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self.mount_a.run_shell(["sudo", "touch", "test_file1"])
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writer = self.mount_a.write_background(loop=True)
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time.sleep(10)
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self.assertFalse(writer.finished)
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# force MDS to read-only mode
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self.fs.mds_asok(['force_readonly'])
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time.sleep(10)
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# touching test file should fail
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try:
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self.mount_a.run_shell(["sudo", "touch", "test_file1"])
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except CommandFailedError:
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pass
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else:
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self.assertTrue(False)
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# background writer also should fail
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self.assertTrue(writer.finished)
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# restart mds to make it writable
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self.fs.mds_fail_restart()
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self.fs.wait_for_daemons()
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