Add fullnode --no-leader-rotation flag

multinode-demo/leader.sh

@@ -33,6 +33,7 @@ tune_networking
 
 trap 'kill "$pid" && wait "$pid"' INT TERM
 $program \
+  --no-leader-rotation \
   --identity "$SOLANA_CONFIG_DIR"/leader.json \
   --ledger "$SOLANA_CONFIG_DIR"/ledger \
   --rpc 8899 \

multinode-demo/validator.sh

@@ -173,6 +173,7 @@ $rsync -vPr "$rsync_leader_url"/config/ "$SOLANA_LEADER_CONFIG_DIR"
 
 trap 'kill "$pid" && wait "$pid"' INT TERM
 $program \
+  --no-leader-rotation \
   --identity "$validator_json_path" \
   --network "$leader_address" \
   --ledger "$SOLANA_LEADER_CONFIG_DIR"/ledger \

src/bin/fullnode.rs

@@ -37,6 +37,10 @@ fn main() {
                 .short("v")
                 .long("nosigverify")
                 .help("Run without signature verification"),
+        ).arg(
+            Arg::with_name("no-leader-rotation")
+                .long("no-leader-rotation")
+                .help("Disable leader rotation"),
         ).arg(
             Arg::with_name("identity")
                 .short("i")
@@ -68,6 +72,7 @@ fn main() {
         ).get_matches();
 
     let nosigverify = matches.is_present("nosigverify");
+    let use_only_bootstrap_leader = matches.is_present("no-leader-rotation");
 
     let (keypair, vote_account_keypair, ncp) = if let Some(i) = matches.value_of("identity") {
         let path = i.to_string();
@@ -111,7 +116,7 @@ fn main() {
     let mut leader_scheduler = LeaderScheduler::default();
 
     // Remove this line to enable leader rotation
-    leader_scheduler.use_only_bootstrap_leader = true;
+    leader_scheduler.use_only_bootstrap_leader = use_only_bootstrap_leader;
 
     let rpc_port = if let Some(port) = matches.value_of("rpc") {
         let port_number = port.to_string().parse().expect("integer");