SERVER-21117 Do not update term in protocol version 0

visualzhou · visualzhou · commit aa1e5014f13a · 2015-10-26T11:33:07.000-04:00
diff --git a/src/mongo/db/repl/replication_coordinator_impl.cpp b/src/mongo/db/repl/replication_coordinator_impl.cpp
@@ -3127,6 +3127,11 @@ Status ReplicationCoordinatorImpl::updateTerm(long long term) {
 }
 
 bool ReplicationCoordinatorImpl::_updateTerm_incallback(long long term) {
+    if (!isV1ElectionProtocol()) {
+        warning() << "Cannot update term in election protocol version 0";
+        return false;
+    }
+
     auto now = _replExecutor.now();
     bool updated = _topCoord->updateTerm(term, now);
     {

Original file line number	Diff line number	Diff line change
`@@ -3127,6 +3127,11 @@ Status ReplicationCoordinatorImpl::updateTerm(long long term) {`
`3127`	`3127`	`}`
`3128`	`3128`
`3129`	`3129`	`bool ReplicationCoordinatorImpl::_updateTerm_incallback(long long term) {`
	`3130`	`+ if (!isV1ElectionProtocol()) {`
	`3131`	`+ warning() << "Cannot update term in election protocol version 0";`
	`3132`	`+ return false;`
	`3133`	`+ }`
	`3134`	`+`
`3130`	`3135`	`auto now = _replExecutor.now();`
`3131`	`3136`	`bool updated = _topCoord->updateTerm(term, now);`
`3132`	`3137`	`{`