diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_cursor16.py')
-rwxr-xr-x | src/third_party/wiredtiger/test/suite/test_cursor16.py | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_cursor16.py b/src/third_party/wiredtiger/test/suite/test_cursor16.py new file mode 100755 index 00000000000..1a3b4db2470 --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_cursor16.py @@ -0,0 +1,95 @@ +#!/usr/bin/env python +# +# Public Domain 2014-2018 MongoDB, Inc. +# Public Domain 2008-2014 WiredTiger, Inc. +# +# This is free and unencumbered software released into the public domain. +# +# Anyone is free to copy, modify, publish, use, compile, sell, or +# distribute this software, either in source code form or as a compiled +# binary, for any purpose, commercial or non-commercial, and by any +# means. +# +# In jurisdictions that recognize copyright laws, the author or authors +# of this software dedicate any and all copyright interest in the +# software to the public domain. We make this dedication for the benefit +# of the public at large and to the detriment of our heirs and +# successors. We intend this dedication to be an overt act of +# relinquishment in perpetuity of all present and future rights to this +# software under copyright law. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR +# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +# OTHER DEALINGS IN THE SOFTWARE. +# +# test_cursor16.py +# Cursors: final close of cached cursors +# + +import wttest +from wiredtiger import stat + +class test_cursor16(wttest.WiredTigerTestCase): + tablename = 'test_cursor16' + uri_prefix = 'table:' + tablename + uri_count = 100 + session_count = 100 + + conn_config = 'cache_cursors=true,statistics=(fast)' + + # Returns the number of cursors cached + def cached_stats(self): + stat_cursor = self.session.open_cursor('statistics:', None, None) + cache = stat_cursor[stat.conn.cursor_cached_count][2] + stat_cursor.close() + return cache + + def test_cursor16(self): + uris = [] + cursors = [] + #self.tty('begin cursors cached=' + str(self.cached_stats())) + for i in range(0, self.uri_count): + uri = self.uri_prefix + '-' + str(i) + uris.append(uri) + self.session.create(uri, 'key_format=S,value_format=S') + cursor = self.session.open_cursor(uri) + # We keep the cursors open in the main session, so there + # will always be a reference to their dhandle, and cached + # cursors won't get swept. + cursors.append(cursor) + for j in range(0, 10): + cursor[str(j)] = str(j) + + self.assertEqual(0, self.cached_stats()) + + sessions = [] + for i in range(0, self.session_count): + #if i % 10 == 0: + # self.tty('session count=%d cursors cached=%d' % + # (i, self.cached_stats())) + session = self.conn.open_session(self.session_config) + sessions.append(session) + for uri in uris: + cursor = session.open_cursor(uri) + # spot check, and leaves the cursor positioned + self.assertEqual(cursor['3'],'3') + cursor.close() + + #self.tty('max cursors cached=' + str(self.cached_stats())) + i = 0 + for session in sessions: + #if i % 10 == 0: + # self.tty('session count=%d cursors cached=%d' % + # (self.session_count - i, self.cached_stats())) + i += 1 + session.close() + + #self.tty('end cursors cached=' + str(self.cached_stats())) + self.assertEqual(0, self.cached_stats()) + +if __name__ == '__main__': + wttest.run() |