qa/cephfs: add test for blacklisted client eviction

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
(cherry picked from commit 8975965)

 Conflicts:
	qa/tasks/cephfs/cephfs_test_case.py
	qa/tasks/cephfs/test_exports.py

qa/tasks/cephfs/cephfs_test_case.py

@@ -1,3 +1,4 @@
+import time
 import json
 import logging
 from unittest import case
@@ -280,3 +281,20 @@ def delete_mds_coredump(self, daemon_id):
             ])
         else:
             log.info("No core_pattern directory set, nothing to clear (internal.coredump not enabled?)")
+
+    def _wait_subtrees(self, status, rank, test):
+        timeout = 30
+        pause = 2
+        test = sorted(test)
+        for i in range(timeout/pause):
+            subtrees = self.fs.mds_asok(["get", "subtrees"], mds_id=status.get_rank(self.fs.id, rank)['name'])
+            subtrees = filter(lambda s: s['dir']['path'].startswith('/'), subtrees)
+            filtered = sorted([(s['dir']['path'], s['auth_first']) for s in subtrees])
+            log.info("%s =?= %s", filtered, test)
+            if filtered == test:
+                # Confirm export_pin in output is correct:
+                for s in subtrees:
+                    self.assertTrue(s['export_pin'] == s['auth_first'])
+                return subtrees
+            time.sleep(pause)
+        raise RuntimeError("rank {0} failed to reach desired subtree state", rank)

qa/tasks/cephfs/test_exports.py

@@ -9,23 +9,6 @@ class TestExports(CephFSTestCase):
     MDSS_REQUIRED = 2
     CLIENTS_REQUIRED = 2
 
-    def _wait_subtrees(self, status, rank, test):
-        timeout = 30
-        pause = 2
-        test = sorted(test)
-        for i in range(timeout/pause):
-            subtrees = self.fs.mds_asok(["get", "subtrees"], mds_id=status.get_rank(self.fs.id, rank)['name'])
-            subtrees = filter(lambda s: s['dir']['path'].startswith('/'), subtrees)
-            filtered = sorted([(s['dir']['path'], s['auth_first']) for s in subtrees])
-            log.info("%s =?= %s", filtered, test)
-            if filtered == test:
-                # Confirm export_pin in output is correct:
-                for s in subtrees:
-                    self.assertTrue(s['export_pin'] == s['auth_first'])
-                return subtrees
-            time.sleep(pause)
-        raise RuntimeError("rank {0} failed to reach desired subtree state", rank)
-
     def test_export_pin(self):
         self.fs.set_max_mds(2)
         self.fs.wait_for_daemons()

qa/tasks/cephfs/test_sessionmap.py

@@ -1,4 +1,5 @@
 from StringIO import StringIO
+import time
 import json
 import logging
 from unittest import SkipTest
@@ -216,3 +217,41 @@ def test_session_reject(self):
         with self.assert_cluster_log("client session with non-allowable root '/baz' denied"):
             with self.assertRaises(CommandFailedError):
                 self.mount_b.mount(mount_path="/foo/bar")
+
+    def test_session_evict_blacklisted(self):
+        """
+        Check that mds evicts blacklisted client
+        """
+        if not isinstance(self.mount_a, FuseMount):
+            self.skipTest("Requires FUSE client to use is_blacklisted()")
+
+        self.fs.set_max_mds(2)
+        self.fs.wait_for_daemons()
+        status = self.fs.status()
+
+        self.mount_a.run_shell(["mkdir", "d0", "d1"])
+        self.mount_a.setfattr("d0", "ceph.dir.pin", "0")
+        self.mount_a.setfattr("d1", "ceph.dir.pin", "1")
+        self._wait_subtrees(status, 0, [('/d0', 0), ('/d1', 1)])
+
+        self.mount_a.run_shell(["touch", "d0/f0"])
+        self.mount_a.run_shell(["touch", "d1/f0"])
+        self.mount_b.run_shell(["touch", "d0/f1"])
+        self.mount_b.run_shell(["touch", "d1/f1"])
+
+        self.assert_session_count(2, mds_id=self.fs.get_rank(rank=0, status=status)['name'])
+        self.assert_session_count(2, mds_id=self.fs.get_rank(rank=1, status=status)['name'])
+
+        mount_a_client_id = self.mount_a.get_global_id()
+        self.fs.mds_asok(['session', 'evict', "%s" % mount_a_client_id],
+                         mds_id=self.fs.get_rank(rank=0, status=status)['name'])
+        self.wait_until_true(lambda: self.mount_a.is_blacklisted(), timeout=30)
+
+        # 10 seconds should be enough for evicting client
+        time.sleep(10)
+        self.assert_session_count(1, mds_id=self.fs.get_rank(rank=0, status=status)['name'])
+        self.assert_session_count(1, mds_id=self.fs.get_rank(rank=1, status=status)['name'])
+
+        self.mount_a.kill_cleanup()
+        self.mount_a.mount()
+        self.mount_a.wait_until_mounted()