initial code repo

[stor4nfv.git] / src / ceph / qa / tasks / cephfs / test_quota.py

diff --git a/src/ceph/qa/tasks/cephfs/test_quota.py b/src/ceph/qa/tasks/cephfs/test_quota.py
new file mode 100644 (file)
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+++ b/src/ceph/qa/tasks/cephfs/test_quota.py
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+
+from cephfs_test_case import CephFSTestCase
+
+from teuthology.exceptions import CommandFailedError
+
+class TestQuota(CephFSTestCase):
+    CLIENTS_REQUIRED = 2
+    MDSS_REQUIRED = 1
+
+    def test_remote_update_getfattr(self):
+        """
+        That quota changes made from one client are visible to another
+        client looking at ceph.quota xattrs
+        """
+        self.mount_a.run_shell(["mkdir", "subdir"])
+
+        self.assertEqual(
+            self.mount_a.getfattr("./subdir", "ceph.quota.max_files"),
+            None)
+        self.assertEqual(
+            self.mount_b.getfattr("./subdir", "ceph.quota.max_files"),
+            None)
+
+        self.mount_a.setfattr("./subdir", "ceph.quota.max_files", "10")
+        self.assertEqual(
+            self.mount_a.getfattr("./subdir", "ceph.quota.max_files"),
+            "10")
+
+        # Should be visible as soon as setxattr operation completes on
+        # mds (we get here sooner because setfattr gets an early reply)
+        self.wait_until_equal(
+            lambda: self.mount_b.getfattr("./subdir", "ceph.quota.max_files"),
+            "10", timeout=10)
+
+    def test_remote_update_df(self):
+        """
+        That when a client modifies the quota on a directory used
+        as another client's root, the other client sees the change
+        reflected in their statfs output.
+        """
+
+        self.mount_b.umount_wait()
+
+        self.mount_a.run_shell(["mkdir", "subdir"])
+
+        size_before = 1024 * 1024 * 128
+        self.mount_a.setfattr("./subdir", "ceph.quota.max_bytes",
+                              "%s" % size_before)
+
+        self.mount_b.mount(mount_path="/subdir")
+
+        self.assertDictEqual(
+            self.mount_b.df(),
+            {
+                "total": size_before,
+                "used": 0,
+                "available": size_before
+            })
+
+        size_after = 1024 * 1024 * 256
+        self.mount_a.setfattr("./subdir", "ceph.quota.max_bytes",
+                              "%s" % size_after)
+
+        # Should be visible as soon as setxattr operation completes on
+        # mds (we get here sooner because setfattr gets an early reply)
+        self.wait_until_equal(
+            lambda: self.mount_b.df(),
+            {
+                "total": size_after,
+                "used": 0,
+                "available": size_after
+            },
+            timeout=10
+        )
+
+    def test_remote_update_write(self):
+        """
+        That when a client modifies the quota on a directory used
+        as another client's root, the other client sees the effect
+        of the change when writing data.
+        """
+
+        self.mount_a.run_shell(["mkdir", "subdir_files"])
+        self.mount_a.run_shell(["mkdir", "subdir_data"])
+
+        # Set some nice high quotas that mount_b's initial operations
+        # will be well within
+        self.mount_a.setfattr("./subdir_files", "ceph.quota.max_files", "100")
+        self.mount_a.setfattr("./subdir_data", "ceph.quota.max_bytes", "104857600")
+
+        # Do some writes within my quota
+        self.mount_b.create_n_files("subdir_files/file", 20)
+        self.mount_b.write_n_mb("subdir_data/file", 20)
+
+        # Set quotas lower than what mount_b already wrote, it should
+        # refuse to write more once it's seen them
+        self.mount_a.setfattr("./subdir_files", "ceph.quota.max_files", "10")
+        self.mount_a.setfattr("./subdir_data", "ceph.quota.max_bytes", "1048576")
+
+        # Do some writes that would have been okay within the old quota,
+        # but are forbidden under the new quota
+        with self.assertRaises(CommandFailedError):
+            self.mount_b.create_n_files("subdir_files/file", 40)
+        with self.assertRaises(CommandFailedError):
+            self.mount_b.write_n_mb("subdir_data/file", 40)
+