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#!/usr/bin/env python
#
# Public Domain 2014-2016 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'
def conn_config(self, dir):
return '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 xrange(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()
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