test: test case for openfiletable MAX_ITEMS_PER_OBJ value verification

Signed-off-by: Vikhyat Umrao <vikhyat@redhat.com>

diff --git a/qa/suites/fs/basic_functional/tasks/openfiletable.yaml b/qa/suites/fs/basic_functional/tasks/openfiletable.yaml
new file mode 100644 (file)
index 0000000..ad90e8b
--- /dev/null
+++ b/qa/suites/fs/basic_functional/tasks/openfiletable.yaml
@@ -0,0 +1,5 @@
+
+tasks:
+  - cephfs_test_runner:
+      modules:
+        - tasks.cephfs.test_openfiletable

diff --git a/qa/tasks/cephfs/test_openfiletable.py b/qa/tasks/cephfs/test_openfiletable.py
new file mode 100644 (file)
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+++ b/qa/tasks/cephfs/test_openfiletable.py
@@ -0,0 +1,41 @@
+import time
+from cephfs_test_case import CephFSTestCase
+from teuthology.exceptions import CommandFailedError
+from tasks.cephfs.cephfs_test_case import CephFSTestCase, for_teuthology
+
+class OpenFileTable(CephFSTestCase):
+    CLIENTS_REQUIRED = 1
+    MDSS_REQUIRED = 1
+
+    def test_max_items_per_obj(self):
+        """
+        The maximum number of openfiles omap objects keys are now equal to
+        osd_deep_scrub_large_omap_object_key_threshold option.
+        """
+        self.set_conf("mds", "osd_deep_scrub_large_omap_object_key_threshold", "5")
+
+        self.fs.mds_restart()
+        self.fs.wait_for_daemons()
+
+        # Write some bytes to a file
+        size_mb = 1
+
+        # Hold the file open
+        file_count = 8
+        for i in xrange(0, file_count):
+            filename = "open_file{}".format(i)
+            p = self.mount_a.open_background(filename)
+            self.mount_a.write_n_mb(filename, size_mb)
+
+        time.sleep(10)
+
+        """
+        With osd_deep_scrub_large_omap_object_key_threshold value as 5 and
+        opening 8 files we should have a new rados object with name
+        mds0_openfiles.1 to hold the extra keys.
+        """
+
+        stat_out = self.fs.rados(["stat", "mds0_openfiles.1"])
+
+        # Now close the file
+        self.mount_a.kill_background(p)