mirror of
https://github.com/ceph/ceph
synced 2024-12-23 11:54:11 +00:00
64 lines
2.2 KiB
Python
64 lines
2.2 KiB
Python
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import os
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import time
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from textwrap import dedent
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from unittest import SkipTest
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from tasks.cephfs.fuse_mount import FuseMount
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from tasks.cephfs.cephfs_test_case import CephFSTestCase
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class TestCapFlush(CephFSTestCase):
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def test_replay_create(self):
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"""
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MDS starts to handle client caps when it enters clientreplay stage.
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When handling a client cap in clientreplay stage, it's possible that
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corresponding inode does not exist because the client request which
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creates inode hasn't been replayed.
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"""
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if not isinstance(self.mount_a, FuseMount):
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raise SkipTest("Require FUSE client to inject client release failure")
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dir_path = os.path.join(self.mount_a.mountpoint, "testdir")
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py_script = dedent("""
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import os
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os.mkdir("{0}")
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fd = os.open("{0}", os.O_RDONLY)
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os.fchmod(fd, 0777)
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os.fsync(fd)
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""").format(dir_path)
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self.mount_a.run_python(py_script)
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self.fs.mds_asok(["flush", "journal"])
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# client will only get unsafe replay
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self.fs.mds_asok(["config", "set", "mds_log_pause", "1"])
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file_name = "testfile"
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file_path = dir_path + "/" + file_name
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# Create a file and modify its mode. ceph-fuse will mark Ax cap dirty
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py_script = dedent("""
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import os
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os.chdir("{0}")
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os.setgid(65534)
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os.setuid(65534)
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fd = os.open("{1}", os.O_CREAT | os.O_RDWR, 0644)
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os.fchmod(fd, 0640)
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""").format(dir_path, file_name)
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self.mount_a.run_python(py_script)
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# Modify file mode by different user. ceph-fuse will send a setattr request
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self.mount_a.run_shell(["chmod", "600", file_path], wait=False)
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time.sleep(10)
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# Restart mds. Client will re-send the unsafe request and cap flush
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self.fs.mds_stop()
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self.fs.mds_fail_restart()
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self.fs.wait_for_daemons()
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mode = self.mount_a.run_shell(['stat', '-c' '%a', file_path]).stdout.getvalue().strip()
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# If the cap flush get dropped, mode should be 0644.
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# (Ax cap stays in dirty state, which prevents setattr reply from updating file mode)
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self.assertEqual(mode, "600")
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