load( "jstests/libs/fail_point_util.js" ); // For configureFailPoint. // // Test sending a vote request to a removed node. // // Start out with {n1, n2, n3} let rst = new ReplSetTest({nodes: 3}); rst.startSet(); rst.initiate(); let primary = rst.getPrimary(); // Save the host of the node that will become removed. let removedHost = rst.nodes[2].host; // Remove n3 from the config. let config = rst.getReplSetConfigFromNode(); let origConfig = Object .assign({}, config); config.members = config.members.slice(0, 2); config.version++; assert.commandWorked(primary.adminCommand({replSetReconfig: config})); // Give plenty of time for config to propagate. sleep(5000); // Block the removed secondary from installing new configs via heartbeat at this point. This is to // simulate a case where heartbeats are propagating very slowly for some reason between nodes. let removedConn = new Mongo(removedHost); let fp = configureFailPoint(removedConn, "blockHeartbeatReconfigFinish" ); // Reconfig back to the original config: {n1, n2, n3}. n3 will not hear about this yet, though, // and still think it is REMOVED. origConfig.version = config.version + 1; assert.commandWorked(primary.adminCommand({replSetReconfig: origConfig})); // Step down the primary and back up again. It should send a vote request to the REMOVED node. assert.commandWorked(primary.adminCommand({replSetStepDown: 1, force: true })); sleep(2000); assert.commandWorked(primary.adminCommand({replSetStepUp: 1})); rst.getPrimary(); rst.stopSet();