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// SERVER-35132 Test that we still honor maxTimeMs during replica set targeting.
// @tags: [requires_replication]
(function() {
'use strict';
var st = new ShardingTest({mongos: 1, shards: 1, rs: {nodes: 2}});
var kDbName = 'test';
var ns = 'test.foo';
var mongos = st.s0;
var testColl = mongos.getCollection(ns);
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
// Since this test is timing sensitive, retry on failures since they could be transient.
// If broken, this would *always* fail so if it ever passes this build is fine (or time went
// backwards).
const tryFiveTimes = function(name, f) {
jsTestLog(`Starting test ${name}`);
for (var trial = 1; trial <= 5; trial++) {
try {
f();
} catch (e) {
if (trial < 5) {
jsTestLog(`Ignoring error during trial ${trial} of test ${name}`);
continue;
}
jsTestLog(`Failed 5 times in test ${name}. There is probably a bug here.`);
throw e;
}
}
};
const runTest = function() {
// Sanity Check
assert.eq(testColl.find({_id: 1}).next(), {_id: 1});
// MaxTimeMS with satisfiable readPref
assert.eq(testColl.find({_id: 1}).readPref("secondary").maxTimeMS(1000).next(), {_id: 1});
let ex = null;
// MaxTimeMS with unsatisfiable readPref
const time = Date.timeFunc(() => {
ex = assert.throws(() => {
testColl.find({_id: 1})
.readPref("secondary", [{tag: "noSuchTag"}])
.maxTimeMS(1000)
.next();
});
});
assert.gte(time, 1000); // Make sure we at least waited 1 second.
assert.lt(time, 15 * 1000); // We used to wait 20 seconds before timing out.
assert.eq(ex.code, ErrorCodes.MaxTimeMSExpired);
};
testColl.insert({_id: 1});
tryFiveTimes("totally unsharded", runTest);
assert.commandWorked(mongos.adminCommand({enableSharding: kDbName}));
tryFiveTimes("sharded db", runTest);
assert.commandWorked(mongos.adminCommand({shardCollection: ns, key: {_id: 1}}));
tryFiveTimes("sharded collection", runTest);
st.stop();
})();
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