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25 lines
862 B
JavaScript
25 lines
862 B
JavaScript
// This tests that we can successfully profile queries on secondaries.
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(function() {
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'use strict';
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var rst = new ReplSetTest({nodes: 2});
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rst.startSet();
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rst.initiate();
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rst.awaitReplication();
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var secondaryDB = rst.getSecondary().getDB('test');
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jsTestLog('Enable profiling on the secondary');
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assert.commandWorked(secondaryDB.runCommand({profile: 2}));
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jsTestLog('Perform a query that returns no results, but will get profiled.');
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secondaryDB.doesntexist.find({}).itcount();
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let numProfileEntries = (coll) =>
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coll.getDB().system.profile.find({op: 'query', ns: coll.getFullName(), nreturned: 0}).itcount();
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jsTestLog('Check the query is in the profile and turn profiling off.');
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assert.eq(numProfileEntries(secondaryDB.doesntexist), 1, 'expected a single profile entry');
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assert.commandWorked(secondaryDB.runCommand({profile: 0}));
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rst.stopSet();
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})();
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