From: Patrick Donnelly <pdonnell@redhat.com>
Date: Sat, 16 Feb 2019 03:44:47 +0000 (-0800)
Subject: qa: config recall settings to test cache drop
X-Git-Tag: v14.1.0~16^2
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=b28dcd9d75909ed04c52bd87b036a8f9c73e050e;p=ceph-ci.git

qa: config recall settings to test cache drop

If we use the defaults, the MDS/client will recall/release everything quickly.
We want it to take time to see things like the timeout get hit.

Fixes: http://tracker.ceph.com/issues/38348
Signed-off-by: Patrick Donnelly <pdonnell@redhat.com>
---

diff --git a/qa/tasks/cephfs/test_misc.py b/qa/tasks/cephfs/test_misc.py
index 08ec9690916..737a5409683 100644
--- a/qa/tasks/cephfs/test_misc.py
+++ b/qa/tasks/cephfs/test_misc.py
@@ -240,10 +240,14 @@ class TestCacheDrop(CephFSTestCase):
                                                     "cache", "drop")
         return json.loads(result)
 
-    def _setup(self):
+    def _setup(self, max_caps=20, threshold=400):
         # create some files
         self.mount_a.create_n_files("dc-dir/dc-file", 1000, sync=True)
 
+        # Reduce this so the MDS doesn't rkcall the maximum for simple tests
+        self.fs.rank_asok(['config', 'set', 'mds_recall_max_caps', str(max_caps)])
+        self.fs.rank_asok(['config', 'set', 'mds_recall_max_decay_threshold', str(threshold)])
+
     def test_drop_cache_command(self):
         """
         Basic test for checking drop cache command.