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path: root/jstests/sharding/read_after_optime.js
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// Test read after opTime functionality with maxTimeMS on config servers (CSRS only)`.

(function() {
    'use strict';

    var shardingTest = new ShardingTest({shards: 0});
    assert(shardingTest.configRS, 'this test requires config servers to run in CSRS mode');

    var configReplSetTest = shardingTest.configRS;
    var primaryConn = configReplSetTest.getPrimary();

    var lastOp = configReplSetTest.awaitLastOpCommitted();
    assert(lastOp, 'invalid op returned from ReplSetTest.awaitLastOpCommitted()');

    var config = configReplSetTest.getReplSetConfigFromNode();
    var term = lastOp.t;

    var runFindCommand = function(ts) {
        return primaryConn.getDB('local').runCommand({
            find: 'oplog.rs',
            readConcern: {
                afterOpTime: {
                    ts: ts,
                    t: term,
                },
            },
            maxTimeMS: 5000,
        });
    };

    assert.commandWorked(runFindCommand(lastOp.ts));

    var pingIntervalSeconds = 10;
    assert.commandFailedWithCode(
        runFindCommand(new Timestamp(lastOp.ts.getTime() + pingIntervalSeconds * 5, 0)),
        ErrorCodes.MaxTimeMSExpired);

    var msg = 'Command on database local timed out waiting for read concern to be satisfied.';
    assert.soon(function() {
        var logMessages = assert.commandWorked(primaryConn.adminCommand({getLog: 'global'})).log;
        for (var i = 0; i < logMessages.length; i++) {
            if (logMessages[i].indexOf(msg) != -1) {
                return true;
            }
        }
        return false;
    }, 'Did not see any log entries containing the following message: ' + msg, 60000, 300);
    shardingTest.stop();
})();