initial code repo

This patch creates initial code repo.

For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.

For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.

Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/src/ceph/qa/tasks/cephfs/test_cap_flush.py b/src/ceph/qa/tasks/cephfs/test_cap_flush.py
new file mode 100644
index 0000000..1cd102f
--- /dev/null
+++ b/src/ceph/qa/tasks/cephfs/test_cap_flush.py
@@ -0,0 +1,64 @@
+
+import os
+import time
+from textwrap import dedent
+from unittest import SkipTest
+from tasks.cephfs.fuse_mount import FuseMount
+from tasks.cephfs.cephfs_test_case import CephFSTestCase, for_teuthology
+
+class TestCapFlush(CephFSTestCase):
+    @for_teuthology
+    def test_replay_create(self):
+        """
+        MDS starts to handle client caps when it enters clientreplay stage.
+        When handling a client cap in clientreplay stage, it's possible that
+        corresponding inode does not exist because the client request which
+        creates inode hasn't been replayed.
+        """
+
+        if not isinstance(self.mount_a, FuseMount):
+            raise SkipTest("Require FUSE client to inject client release failure")
+
+        dir_path = os.path.join(self.mount_a.mountpoint, "testdir")
+        py_script = dedent("""
+            import os
+            os.mkdir("{0}")
+            fd = os.open("{0}", os.O_RDONLY)
+            os.fchmod(fd, 0777)
+            os.fsync(fd)
+            """).format(dir_path)
+        self.mount_a.run_python(py_script)
+
+        self.fs.mds_asok(["flush", "journal"])
+
+        # client will only get unsafe replay
+        self.fs.mds_asok(["config", "set", "mds_log_pause", "1"])
+
+        file_name = "testfile"
+        file_path = dir_path + "/" + file_name
+
+        # Create a file and modify its mode. ceph-fuse will mark Ax cap dirty
+        py_script = dedent("""
+            import os
+            os.chdir("{0}")
+            os.setgid(65534)
+            os.setuid(65534)
+            fd = os.open("{1}", os.O_CREAT | os.O_RDWR, 0644)
+            os.fchmod(fd, 0640)
+            """).format(dir_path, file_name)
+        self.mount_a.run_python(py_script)
+
+        # Modify file mode by different user. ceph-fuse will send a setattr request
+        self.mount_a.run_shell(["chmod", "600", file_path], wait=False)
+
+        time.sleep(10)
+
+        # Restart mds. Client will re-send the unsafe request and cap flush
+        self.fs.mds_stop()
+        self.fs.mds_fail_restart()
+        self.fs.wait_for_daemons()
+
+        mode = self.mount_a.run_shell(['stat', '-c' '%a', file_path]).stdout.getvalue().strip()
+        # If the cap flush get dropped, mode should be 0644.
+        # (Ax cap stays in dirty state, which prevents setattr reply from updating file mode)
+        self.assertEqual(mode, "600")