SERVER-9578 install mongos signal handler for SIGUSR1 before spawning any threads

Author: milkie

src/mongo/s/server.cpp

@@ -220,7 +220,7 @@ namespace mongo {
 
     void init() {
         serverID.init();
-        setupSignalHandlers();
+
         Logstream::get().addGlobalTee( new RamLog("global") );
     }
 
@@ -263,7 +263,7 @@ namespace mongo {
 using namespace mongo;
 
 static bool runMongosServer( bool doUpgrade ) {
-
+    setupSignalHandlers();
     setThreadName( "mongosMain" );
     printShardingVersionInfo( false );