diff --git a/ndb/include/mgmapi/mgmapi_config_parameters.h b/ndb/include/mgmapi/mgmapi_config_parameters.h
index 9076f18c5ac..ec69be74d12 100644
--- a/ndb/include/mgmapi/mgmapi_config_parameters.h
+++ b/ndb/include/mgmapi/mgmapi_config_parameters.h
@@ -65,6 +65,7 @@
 #define CFG_DB_BACKUP_DATA_BUFFER_MEM     134
 #define CFG_DB_BACKUP_LOG_BUFFER_MEM      135
 #define CFG_DB_BACKUP_WRITE_SIZE          136
+#define CFG_DB_BACKUP_MAX_WRITE_SIZE      139
 
 #define CFG_LOG_DESTINATION           147
 
diff --git a/ndb/include/util/SocketServer.hpp b/ndb/include/util/SocketServer.hpp
index ee2dd31c41f..02a0a6b5d92 100644
--- a/ndb/include/util/SocketServer.hpp
+++ b/ndb/include/util/SocketServer.hpp
@@ -74,7 +74,7 @@ public:
   /**
    * Constructor / Destructor
    */
-  SocketServer(int maxSessions = 32);
+  SocketServer(unsigned maxSessions = ~(unsigned)0);
   ~SocketServer();
   
   /**
diff --git a/ndb/src/common/transporter/Transporter.cpp b/ndb/src/common/transporter/Transporter.cpp
index 328ce2816de..902dfea9c8e 100644
--- a/ndb/src/common/transporter/Transporter.cpp
+++ b/ndb/src/common/transporter/Transporter.cpp
@@ -100,10 +100,10 @@ Transporter::connect_server(NDB_SOCKET_TYPE sockfd) {
   }
   
   {
-    struct sockaddr addr;
+    struct sockaddr_in addr;
     SOCKET_SIZE_TYPE addrlen= sizeof(addr);
-    int r= getpeername(sockfd, &addr, &addrlen);
-    m_connect_address= ((struct sockaddr_in *)&addr)->sin_addr;
+    int r= getpeername(sockfd, (struct sockaddr*)&addr, &addrlen);
+    m_connect_address= (&addr)->sin_addr;
   }
 
   bool res = connect_server_impl(sockfd);
@@ -173,10 +173,10 @@ Transporter::connect_client() {
   }
 
   {
-    struct sockaddr addr;
+    struct sockaddr_in addr;
     SOCKET_SIZE_TYPE addrlen= sizeof(addr);
-    int r= getpeername(sockfd, &addr, &addrlen);
-    m_connect_address= ((struct sockaddr_in *)&addr)->sin_addr;
+    int r= getpeername(sockfd, (struct sockaddr*)&addr, &addrlen);
+    m_connect_address= (&addr)->sin_addr;
   }
 
   bool res = connect_client_impl(sockfd);
diff --git a/ndb/src/common/util/SocketServer.cpp b/ndb/src/common/util/SocketServer.cpp
index db5c03f925a..755764c7700 100644
--- a/ndb/src/common/util/SocketServer.cpp
+++ b/ndb/src/common/util/SocketServer.cpp
@@ -27,7 +27,7 @@
 
 #define DEBUG(x) ndbout << x << endl;
 
-SocketServer::SocketServer(int maxSessions) :
+SocketServer::SocketServer(unsigned maxSessions) :
   m_sessions(10),
   m_services(5)
 {
@@ -124,7 +124,7 @@ SocketServer::setup(SocketServer::Service * service,
     DBUG_RETURN(false);
   }
   
-  if (listen(sock, m_maxSessions) == -1){
+  if (listen(sock, m_maxSessions > 32 ? 32 : m_maxSessions) == -1){
     DBUG_PRINT("error",("listen() - %d - %s",
 			errno, strerror(errno)));
     NDB_CLOSE_SOCKET(sock);
diff --git a/ndb/src/kernel/blocks/backup/BackupInit.cpp b/ndb/src/kernel/blocks/backup/BackupInit.cpp
index 7cd9c61f010..dfda31e9b48 100644
--- a/ndb/src/kernel/blocks/backup/BackupInit.cpp
+++ b/ndb/src/kernel/blocks/backup/BackupInit.cpp
@@ -66,15 +66,16 @@ Backup::Backup(const Configuration & conf) :
 
   Uint32 szDataBuf = (2 * 1024 * 1024);
   Uint32 szLogBuf = (2 * 1024 * 1024);
-  Uint32 szWrite = 32768;
+  Uint32 szWrite = 32768, maxWriteSize = (256 * 1024);
   ndb_mgm_get_int_parameter(p, CFG_DB_BACKUP_DATA_BUFFER_MEM, &szDataBuf);
   ndb_mgm_get_int_parameter(p, CFG_DB_BACKUP_LOG_BUFFER_MEM, &szLogBuf);
   ndb_mgm_get_int_parameter(p, CFG_DB_BACKUP_WRITE_SIZE, &szWrite);
+  ndb_mgm_get_int_parameter(p, CFG_DB_BACKUP_MAX_WRITE_SIZE, &maxWriteSize);
   
   c_defaults.m_logBufferSize = szLogBuf;
   c_defaults.m_dataBufferSize = szDataBuf;
   c_defaults.m_minWriteSize = szWrite;
-  c_defaults.m_maxWriteSize = szWrite;
+  c_defaults.m_maxWriteSize = maxWriteSize;
   
   { // Init all tables
     ArrayList<Table> tables(c_tablePool);
diff --git a/ndb/src/mgmsrv/ConfigInfo.cpp b/ndb/src/mgmsrv/ConfigInfo.cpp
index 36a72dcb975..66a400a3e22 100644
--- a/ndb/src/mgmsrv/ConfigInfo.cpp
+++ b/ndb/src/mgmsrv/ConfigInfo.cpp
@@ -1191,7 +1191,19 @@ const ConfigInfo::ParamInfo ConfigInfo::m_ParamInfo[] = {
     false,
     ConfigInfo::CI_INT,
     "32K",
-    "0",
+    "2K",
+    STR_VALUE(MAX_INT_RNIL) },
+
+  { 
+    CFG_DB_BACKUP_MAX_WRITE_SIZE,
+    "BackupMaxWriteSize",
+    DB_TOKEN,
+    "Max size of filesystem writes made by backup (in bytes)",
+    ConfigInfo::CI_USED,
+    false,
+    ConfigInfo::CI_INT,
+    "256K",
+    "2K",
     STR_VALUE(MAX_INT_RNIL) },
 
   /***************************************************************************
diff --git a/ndb/src/mgmsrv/Services.cpp b/ndb/src/mgmsrv/Services.cpp
index 1a5b0592066..0ce89aacefc 100644
--- a/ndb/src/mgmsrv/Services.cpp
+++ b/ndb/src/mgmsrv/Services.cpp
@@ -427,9 +427,9 @@ MgmApiSession::get_nodeid(Parser_t::Context &,
     return;
   }
 
-  struct sockaddr addr;
+  struct sockaddr_in addr;
   SOCKET_SIZE_TYPE addrlen= sizeof(addr);
-  int r = getpeername(m_socket, &addr, &addrlen);
+  int r = getpeername(m_socket, (struct sockaddr*)&addr, &addrlen);
   if (r != 0 ) {
     m_output->println(cmd);
     m_output->println("result: getpeername(%d) failed, err= %d", m_socket, r);
@@ -441,7 +441,7 @@ MgmApiSession::get_nodeid(Parser_t::Context &,
   if(tmp == 0 || !m_allocated_resources->is_reserved(tmp)){
     BaseString error_string;
     if (!m_mgmsrv.alloc_node_id(&tmp, (enum ndb_mgm_node_type)nodetype, 
-				&addr, &addrlen, error_string)){
+				(struct sockaddr*)&addr, &addrlen, error_string)){
       const char *alias;
       const char *str;
       alias= ndb_mgm_get_node_type_alias_string((enum ndb_mgm_node_type)
diff --git a/support-files/mysql.spec.sh b/support-files/mysql.spec.sh
index 737a0d3899d..9471e2228ed 100644
--- a/support-files/mysql.spec.sh
+++ b/support-files/mysql.spec.sh
@@ -644,6 +644,7 @@ fi
 %attr(755, root, root) %{_bindir}/ndb_desc
 %attr(755, root, root) %{_bindir}/ndb_show_tables
 %attr(755, root, root) %{_bindir}/ndb_test_platform
+%attr(755, root, root) %{_bindir}/ndb_config
 
 %files ndb-extra
 %defattr(-,root,root,0755)