SERVER-19524 SERVER-19739 Additional validation and behavior for replica set configs for config servers

1 files changed, 116 insertions, 0 deletions

diff --git a/jstests/replsets/config_server_checks.js b/jstests/replsets/config_server_checks.js
new file mode 100644
index 00000000000..358e9eca38a
--- /dev/null
+++ b/jstests/replsets/config_server_checks.js
@@ -0,0 +1,116 @@
+/*
+ * Tests various combinations of the configServer field in replica set configurations and the
+ * command line options that control whether a node can function as a member of a CSRS.
+ */
+
+function expectState(rst, state) {
+    assert.soon(function() {
+                    var status = rst.status();
+                    if (status.myState != state) {
+                        print("Waiting for state " + state +
+                              " in replSetGetStatus output: " + tojson(status));
+                    }
+                    return status.myState == state;
+                });
+}
+
+(function() {
+"use strict";
+
+(function() {
+// Test that node without --configsvr cmd line but with configServer in replset config goes
+// into REMOVED state
+jsTestLog("configServer in rs config, no --configsvr cmd line")
+var rst = new ReplSetTest({name: "configrs1",
+                           nodes: 1,
+                           nodeOptions: {storageEngine: "wiredTiger"}});
+
+rst.startSet();
+var conf = rst.getReplSetConfig();
+conf.configServer = true;
+try {
+    rst.nodes[0].adminCommand({replSetInitiate: conf});
+} catch (e) {
+    // expected since we close all connections after going into REMOVED
+}
+expectState(rst, 10 /*REMOVED*/);
+rst.stopSet();
+})();
+
+
+(function() {
+// Test that node with --configsvr cmd line but without configServer in replset config goes
+// into REMOVED state
+jsTestLog("no configServer in rs config but --configsvr cmd line");
+var rst = new ReplSetTest({name: "configrs2",
+                           nodes: 1,
+                           nodeOptions: {configsvr: "", storageEngine: "wiredTiger"}});
+
+rst.startSet();
+var conf = rst.getReplSetConfig();
+try {
+    rst.nodes[0].adminCommand({replSetInitiate: conf});
+} catch (e) {
+    // expected since we close all connections after going into REMOVED
+}
+expectState(rst, 10 /*REMOVED*/);
+rst.stopSet();
+})();
+
+(function() {
+// Test that node with --configsvr cmd line and configServer in replset config goes
+// into REMOVED state if storage engine is not WiredTiger
+jsTestLog("configServer in rs config and --configsvr cmd line, but mmapv1");
+var rst = new ReplSetTest({name: "configrs3", nodes: 1, nodeOptions: {configsvr: "",
+                                                                      storageEngine: "mmapv1"}});
+
+rst.startSet();
+var conf = rst.getReplSetConfig();
+conf.configServer = true;
+try {
+    rst.nodes[0].adminCommand({replSetInitiate: conf});
+} catch (e) {
+    // expected since we close all connections after going into REMOVED
+}
+expectState(rst, 10 /*REMOVED*/);
+rst.stopSet();
+})();
+
+(function() {
+// Test that node with --configsvr cmd line and configServer in replset config does NOT go
+// into REMOVED state if storage engine is not WiredTiger but we're running in SCC mode
+jsTestLog("configServer in rs config and --configsvr cmd line, but mmapv1 with configSvrMode=scc");
+var rst = new ReplSetTest({name: "configrs4", nodes: 1, nodeOptions: {configsvr: "",
+                                                                      storageEngine: "mmapv1",
+                                                                      configsvrMode: "scc"}});
+
+rst.startSet();
+var conf = rst.getReplSetConfig();
+conf.configServer = true;
+assert.commandWorked(rst.nodes[0].adminCommand({replSetInitiate: conf}));
+
+rst.getMaster();
+expectState(rst, 1 /*PRIMARY*/);
+rst.stopSet();
+})();
+
+(function() {
+// Test that node with --configsvr cmd line and configServer in replset config and using wiredTiger
+// does NOT go into REMOVED state.
+jsTestLog("configServer in rs config and --configsvr cmd line, normal case");
+var rst = new ReplSetTest({name: "configrs5",
+                           nodes: 1,
+                           nodeOptions: {configsvr: "", storageEngine: "wiredTiger"}});
+
+rst.startSet();
+var conf = rst.getReplSetConfig();
+conf.configServer = true;
+assert.commandWorked(rst.nodes[0].adminCommand({replSetInitiate: conf}));
+
+rst.getMaster();
+expectState(rst, 1 /*PRIMARY*/);
+rst.stopSet();
+})();
+
+
+})();