134 lines
3.2 KiB
JavaScript
134 lines
3.2 KiB
JavaScript
/* test removing a node from a replica set
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*
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* Start set with two nodes
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* Initial sync
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* Remove secondary
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* Bring secondary back up
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* Add it back as secondary
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* Make sure both nodes are either primary or secondary
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*/
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load("jstests/replsets/rslib.js");
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var name = "removeNodes";
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var host = getHostName();
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print("Start set with two nodes");
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var replTest = new ReplSetTest( {name: name, nodes: 2} );
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var nodes = replTest.startSet();
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replTest.initiate();
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var master = replTest.getMaster();
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print("Initial sync");
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master.getDB("foo").bar.baz.insert({x:1});
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replTest.awaitReplication();
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print("Remove secondary");
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var config = replTest.getReplSetConfig();
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config.members.pop();
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config.version = 2;
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assert.eq(replTest.nodes[1].getDB("admin").runCommand({ping:1}).ok, 1, "we are connected to node[1]");
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try {
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master.getDB("admin").runCommand({replSetReconfig:config});
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}
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catch(e) {
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print(e);
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}
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// This test that nodes[1] disconnects us when it picks up the new config
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assert.soon(
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function() {
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try {
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replTest.nodes[1].getDB("admin").runCommand({ping:1});
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} catch (e) {
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return true;
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}
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return false;
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}
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);
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// Now we should successfully reconnect to nodes[1]
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assert.eq(replTest.nodes[1].getDB("admin").runCommand({ping:1}).ok, 1,
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"we are connected to node[1]");
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reconnect(master);
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assert.soon(function() {
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var c = master.getDB("local").system.replset.findOne();
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return c.version == 2;
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});
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print("Add it back as a secondary");
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config.members.push({_id:1, host : host+":"+replTest.getPort(1)});
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config.version = 3;
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printjson(config);
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wait(function() {
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try {
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master.getDB("admin").runCommand({replSetReconfig:config});
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}
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catch(e) {
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print(e);
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}
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reconnect(master);
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printjson(master.getDB("admin").runCommand({replSetGetStatus:1}));
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master.setSlaveOk();
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var newConfig = master.getDB("local").system.replset.findOne();
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print( "newConfig: " + tojson(newConfig) );
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return newConfig.version == 3;
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} , "wait1" );
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print("Make sure both nodes are either primary or secondary");
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wait(function() {
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var status = master.getDB("admin").runCommand({replSetGetStatus:1});
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occasionally(function() {
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printjson(status);
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});
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if (!status.members || status.members.length != 2) {
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return false;
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}
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for (var i = 0; i<2; i++) {
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if (status.members[i].state != 1 && status.members[i].state != 2) {
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return false;
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}
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}
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return true;
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} , "wait2" );
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print("reconfig with minority");
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replTest.stop(1);
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assert.soon(function() {
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try {
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return master.getDB("admin").runCommand({isMaster : 1}).secondary;
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}
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catch(e) {
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print("trying to get master: "+e);
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}
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},"waiting for primary to step down",(60*1000),1000);
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config.version = 4;
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config.members.pop();
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try {
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master.getDB("admin").runCommand({replSetReconfig : config, force : true});
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}
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catch(e) {
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print(e);
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}
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reconnect(master);
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assert.soon(function() {
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return master.getDB("admin").runCommand({isMaster : 1}).ismaster;
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},"waiting for old primary to accept reconfig and step up",(60*1000),1000);
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config = master.getDB("local").system.replset.findOne();
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printjson(config);
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assert(config.version > 4);
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replTest.stopSet();
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