#!/usr/bin/env python # # Public Domain 2014-present 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. import wiredtiger, wttest # test_schema07.py # Test that long-running tests don't fill the cache with metadata class test_schema07(wttest.WiredTigerTestCase): tablename = 'table:test_schema07' conn_config = 'cache_size=10MB' @wttest.longtest("Creating many tables shouldn't fill the cache") def test_many_tables(self): s = self.session # We have a 10MB cache, metadata is (well) over 512B per table, # if we can create 20K tables, something must be cleaning up. for i in range(20000): uri = '%s-%06d' % (self.tablename, i) s.create(uri) c = s.open_cursor(uri) # This will block if the metadata fills the cache c["key"] = "value" c.close() self.session.drop(uri) if __name__ == '__main__': wttest.run()