142 lines
5.4 KiB
Python
142 lines
5.4 KiB
Python
#!/usr/bin/env python
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#
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# Public Domain 2008-2014 WiredTiger, Inc.
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#
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# This is free and unencumbered software released into the public domain.
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#
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# Anyone is free to copy, modify, publish, use, compile, sell, or
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# distribute this software, either in source code form or as a compiled
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# binary, for any purpose, commercial or non-commercial, and by any
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# means.
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#
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# In jurisdictions that recognize copyright laws, the author or authors
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# of this software dedicate any and all copyright interest in the
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# software to the public domain. We make this dedication for the benefit
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# of the public at large and to the detriment of our heirs and
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# successors. We intend this dedication to be an overt act of
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# relinquishment in perpetuity of all present and future rights to this
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# software under copyright law.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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import helper, wiredtiger, wttest
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from wiredtiger import stat
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# test_stat01.py
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# Statistics operations
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class test_stat01(wttest.WiredTigerTestCase):
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"""
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Test statistics
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"""
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tablename = 'test_stat01.wt'
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uri = 'file:' + tablename
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config = 'key_format=S,' +\
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'allocation_size=512,internal_page_max=16K,leaf_page_max=128K'
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nentries = 25
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# Override WiredTigerTestCase, we have extensions.
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def setUpConnectionOpen(self, dir):
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conn = wiredtiger.wiredtiger_open(dir,
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'create,statistics=(fast),' +
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'error_prefix="%s: "' % self.shortid())
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return conn
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def statstr_to_int(self, str):
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"""
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Convert a statistics value string, which may be in either form:
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'12345' or '33M (33604836)'
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"""
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parts = str.rpartition('(')
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return int(parts[2].rstrip(')'))
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def check_stats(self, statcursor, mincount, lookfor):
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"""
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Do a quick check of the entries in the the stats cursor,
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There should be at least 'mincount' entries,
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and the 'lookfor' string should appear
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"""
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stringclass = ''.__class__
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intclass = (0).__class__
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# make sure statistics basically look right
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count = 0
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found = False
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for id, desc, valstr, val in statcursor:
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self.assertEqual(type(desc), stringclass)
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self.assertEqual(type(valstr), stringclass)
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self.assertEqual(type(val), intclass)
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self.assertEqual(val, self.statstr_to_int(valstr))
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self.printVerbose(2, ' stat: \'' + desc + '\', \'' +
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valstr + '\', ' + str(val))
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count += 1
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if desc == lookfor:
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found = True
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self.assertTrue(count > mincount)
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self.assertTrue(found, 'in stats, did not see: ' + lookfor)
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def test_basic_conn_stats(self):
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self.printVerbose(2, 'overall database stats:')
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allstat_cursor = self.session.open_cursor('statistics:', None, None)
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self.check_stats(allstat_cursor, 10, 'block manager: blocks written')
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# See that we can get a specific stat value by its key,
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# and verify that its entry is self-consistent
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values = allstat_cursor[stat.conn.block_write]
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self.assertEqual(values[0], 'block manager: blocks written')
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val = self.statstr_to_int(values[1])
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self.assertEqual(val, values[2])
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allstat_cursor.close()
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def test_basic_data_source_stats(self):
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self.session.create(self.uri, self.config)
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cursor = self.session.open_cursor(self.uri, None, None)
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value = ""
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for i in range(0, self.nentries):
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key = str(i)
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value = value + key + value # size grows exponentially
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cursor.set_key(key)
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cursor.set_value(value)
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cursor.insert()
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cursor.close()
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self.printVerbose(2, 'data source specific stats:')
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cursor = self.session.open_cursor(
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'statistics:' + self.uri, None, None)
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self.check_stats(cursor, 10, 'overflow pages')
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# See that we can get a specific stat value by its key,
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# and verify that its entry is self-consistent
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values = cursor[stat.dsrc.btree_overflow]
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self.assertEqual(values[0], 'overflow pages')
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val = self.statstr_to_int(values[1])
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self.assertEqual(val, values[2])
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cursor.close()
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def test_missing_file_stats(self):
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self.assertRaises(wiredtiger.WiredTigerError, lambda:
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self.session.open_cursor('statistics:file:DoesNotExist'))
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def test_checkpoint_stats(self):
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nentries = 0
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last_size = 0
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for name in ('first', 'second', 'third'):
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helper.simple_populate(self, self.uri, self.config, nentries)
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nentries += self.nentries
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self.session.checkpoint('name=' + name)
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cursor = self.session.open_cursor(
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'statistics:' + self.uri, None, 'checkpoint=' + name)
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size = cursor[stat.dsrc.btree_overflow][1]
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self.assertTrue(size >= last_size)
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last_size = size
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cursor.close()
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self.session.truncate(self.uri, None, None)
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if __name__ == '__main__':
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wttest.run()
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