133 lines
3.0 KiB
JavaScript
133 lines
3.0 KiB
JavaScript
/* test removing a node from a replica set
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*
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* Start set with three nodes
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* Initial sync
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* Remove slave1
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* Remove slave2
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* Bring slave1 back up
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* Bring slave2 back up
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* Add them back as slave
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* Make sure everyone's 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 three nodes");
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var replTest = new ReplSetTest( {name: name, nodes: 3} );
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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 slave2");
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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.soon(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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reconnect(replTest.nodes[2]);
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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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// make sure 2 is dead before continuing
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assert.soon(function() {
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try {
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replTest.nodes[2].getDB("foo").bar.findOne();
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}
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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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print("Remove slave1");
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config.members.pop();
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config.version = 3;
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assert.soon(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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var c = master.getDB("local").system.replset.findOne();
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return c.version == 3;
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});
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print("clear slave ports");
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// these are already down, but this clears their ports from memory so that they
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// can be restarted later
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replTest.stop(1);
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replTest.stop(2);
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print("Bring slave1 back up");
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replTest.restart(1, {"fastsync":null});
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print("Bring slave2 back up");
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replTest.restart(2, {"fastsync":null});
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print("Add them back as slaves");
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config.members.push({_id:1, host : host+":"+replTest.getPort(1)});
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config.members.push({_id:2, host : host+":"+replTest.getPort(2)});
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config.version = 4;
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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 == 4;
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} , "wait1" );
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print("Make sure everyone's 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 != 3) {
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return false;
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}
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for (var i = 0; i<3; 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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replTest.stopSet();
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