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/**
* Tests that when a node restarts during initial sync before it can clone the FCV document, it is
* still able to start up successfully and restart initial sync.
*/
(function() {
load("jstests/libs/check_log.js");
load("jstests/libs/feature_compatibility_version.js");
rst = new ReplSetTest({nodes: 1});
rst.startSet();
rst.initiate();
jsTestLog("Adding a second node to the replica set.");
const adminDbName = "admin";
const versionCollName = "system.version";
const nss = adminDbName + "." + versionCollName;
// Hang initial sync before cloning the FCV document.
let secondary = rst.add({rsConfig: {priority: 0}});
assert.commandWorked(secondary.getDB('admin').runCommand({
configureFailPoint: 'initialSyncHangBeforeCollectionClone',
mode: 'alwaysOn',
data: {namespace: nss}
}));
rst.reInitiate();
checkLog.contains(secondary, "initialSyncHangBeforeCollectionClone fail point enabled.");
jsTestLog("Restarting secondary in the early stages of initial sync.");
rst.restart(secondary);
rst.awaitSecondaryNodes();
// Get the new secondary connection.
secondary = rst.getSecondary();
secondary.setSlaveOk(true);
const secondaryAdminDb = secondary.getDB("admin");
// Assert that the FCV document was cloned through initial sync on the secondary.
checkFCV(secondaryAdminDb, latestFCV);
rst.stopSet();
}());
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