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// Test that interrupting a count returns an error code.
//
// @tags: [
// # This test attempts to perform a count command and find it using the currentOp command. The
// # former operation may be routed to a secondary in the replica set, whereas the latter must be
// # routed to the primary.
// assumes_read_preference_unchanged,
// does_not_support_stepdowns,
//
// # Uses $where operator
// requires_scripting,
// ]
t = db.count10;
t.drop();
for (i = 0; i < 100; i++) {
t.save({x: i});
}
// Start a parallel shell which repeatedly checks for a count
// query using db.currentOp(). As soon as the op is found,
// kill it via db.killOp().
s = startParallelShell('assert.soon(function() {' +
' current = db.currentOp({"ns": db.count10.getFullName(), ' +
' "command.count": db.count10.getName()}); ' +
// Check that we found the count op. If not, return false so
// that assert.soon will retry.
' assert("inprog" in current); ' +
' if (current.inprog.length === 0) { ' +
' jsTest.log("count10.js: did not find count op, retrying"); ' +
' printjson(current); ' +
' return false; ' +
' } ' +
' countOp = current.inprog[0]; ' +
' if (!countOp) { ' +
' jsTest.log("count10.js: did not find count op, retrying"); ' +
' printjson(current); ' +
' return false; ' +
' } ' +
// Found the count op. Try to kill it.
' jsTest.log("count10.js: found count op:"); ' +
' printjson(current); ' +
' printjson(db.killOp(countOp.opid)); ' +
' return true; ' +
'}, "count10.js: could not find count op after retrying, gave up");');
function getKilledCount() {
try {
db.count10.find("sleep(1000)").count();
jsTest.log("count10.js: count op completed without being killed");
} catch (e) {
return e;
}
}
var res = getKilledCount();
jsTest.log("count10.js: killed count output start");
printjson(res);
jsTest.log("count10.js: killed count output end");
assert(res);
assert(res.message.match(/count failed/) !== null);
assert(res.message.match(/\"code\"/) !== null);
s();
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