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// Tests the output of db.getReplicationInfo(), db.printSlaveReplicationInfo(), and the latter's
// alias, db.printSecondaryReplicationInfo().
(function() {
"use strict";
load("jstests/libs/fail_point_util.js");
var name = "getReplicationInfo";
const replSet = new ReplSetTest({name: name, nodes: 2, oplogSize: 50});
replSet.startSet();
replSet.initiate();
var primary = replSet.getPrimary();
// Test that db.printSlaveReplicationInfo() and db.printSecondaryReplicationInfo() both print
// out initial sync info when called during an initial sync.
const syncTarget = replSet.add({
rsConfig: {votes: 0, priority: 0},
setParameter: {
'failpoint.forceSyncSourceCandidate':
tojson({mode: 'alwaysOn', data: {hostAndPort: primary.name}})
}
});
syncTarget.setSecondaryOk();
const failPointBeforeFinish = configureFailPoint(syncTarget, 'initialSyncHangBeforeFinish');
replSet.reInitiate();
failPointBeforeFinish.wait();
const callPrintSecondaryReplInfo = startParallelShell(
"db.getSiblingDB('admin').printSecondaryReplicationInfo();", syncTarget.port);
callPrintSecondaryReplInfo();
assert(rawMongoProgramOutput().match("InitialSyncSyncSource: " + primary.name));
assert(rawMongoProgramOutput().match("InitialSyncRemainingEstimatedDuration: "));
clearRawMongoProgramOutput();
const callPrintSlaveReplInfo =
startParallelShell("db.getSiblingDB('admin').printSlaveReplicationInfo();", syncTarget.port);
callPrintSlaveReplInfo();
assert(rawMongoProgramOutput().match("InitialSyncSyncSource: " + primary.name));
assert(rawMongoProgramOutput().match("InitialSyncRemainingEstimatedDuration: "));
clearRawMongoProgramOutput();
failPointBeforeFinish.off();
replSet.awaitSecondaryNodes();
for (var i = 0; i < 100; i++) {
primary.getDB('test').foo.insert({a: i});
}
replSet.awaitReplication();
var replInfo = primary.getDB('admin').getReplicationInfo();
var replInfoString = tojson(replInfo);
assert.eq(50, replInfo.logSizeMB, replInfoString);
assert.lt(0, replInfo.usedMB, replInfoString);
assert.lte(0, replInfo.timeDiff, replInfoString);
assert.lte(0, replInfo.timeDiffHours, replInfoString);
// Just make sure the following fields exist since it would be hard to predict their values
assert(replInfo.tFirst, replInfoString);
assert(replInfo.tLast, replInfoString);
assert(replInfo.now, replInfoString);
// calling this function with and without a primary, should provide sufficient code coverage
// to catch any JS errors
var mongo =
startParallelShell("db.getSiblingDB('admin').printSlaveReplicationInfo();", primary.port);
mongo();
assert(rawMongoProgramOutput().match("behind the primary"));
// get to a primaryless state
for (i in replSet.getSecondaries()) {
var secondary = replSet.getSecondaries()[i];
secondary.getDB('admin').runCommand({replSetFreeze: 120});
}
assert.commandWorked(primary.getDB('admin').runCommand({replSetStepDown: 120, force: true}));
// printSlaveReplicationInfo is deprecated and aliased to printSecondaryReplicationInfo, but ensure
// it still works for backwards compatibility.
mongo = startParallelShell("db.getSiblingDB('admin').printSlaveReplicationInfo();", primary.port);
mongo();
assert(rawMongoProgramOutput().match("behind the freshest"));
clearRawMongoProgramOutput();
assert.eq(rawMongoProgramOutput().match("behind the freshest"), null);
// Ensure that the new helper, printSecondaryReplicationInfo works the same.
mongo =
startParallelShell("db.getSiblingDB('admin').printSecondaryReplicationInfo();", primary.port);
mongo();
assert(rawMongoProgramOutput().match("behind the freshest"));
replSet.stopSet();
})();
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