added more logging in ndb handler

    enable extra logging in ndb handler during test runs

mysql-test/mysql-test-run.pl

@@ -2316,6 +2316,7 @@ sub mysqld_arguments ($$$$$$) {
       mtr_add_arg($args, "%s--ndbcluster", $prefix);
       mtr_add_arg($args, "%s--ndb-connectstring=%s", $prefix,
                   $opt_ndbconnectstring);
+      mtr_add_arg($args, "%s--ndb-extra-logging", $prefix);
     }
   }
 
@@ -2383,6 +2384,7 @@ sub mysqld_arguments ($$$$$$) {
       mtr_add_arg($args, "%s--ndbcluster", $prefix);
       mtr_add_arg($args, "%s--ndb-connectstring=%s", $prefix,
                   $opt_ndbconnectstring_slave);
+      mtr_add_arg($args, "%s--ndb-extra-logging", $prefix);
     }
   } # end slave
 

sql/ha_ndbcluster_binlog.cc

@@ -1464,6 +1464,14 @@ ndb_binlog_thread_handle_schema_event(THD *thd, Ndb *ndb,
       (void) pthread_mutex_lock(&share->mutex);
       bitmap_clear_all(&share->subscriber_bitmap[node_id]);
       DBUG_PRINT("info",("NODE_FAILURE UNSUBSCRIBE[%d]", node_id));
+      if (ndb_extra_logging)
+      {
+        sql_print_information("NDB Binlog: Node: %d, down,"
+                              " Subscriber bitmask %x%x",
+                              pOp->getNdbdNodeId(),
+                              share->subscriber_bitmap[node_id].bitmap[1],
+                              share->subscriber_bitmap[node_id].bitmap[0]);
+      }
       (void) pthread_mutex_unlock(&share->mutex);
       (void) pthread_cond_signal(&injector_cond);
       break;
@@ -1476,6 +1484,15 @@ ndb_binlog_thread_handle_schema_event(THD *thd, Ndb *ndb,
       (void) pthread_mutex_lock(&share->mutex);
       bitmap_set_bit(&share->subscriber_bitmap[node_id], req_id);
       DBUG_PRINT("info",("SUBSCRIBE[%d] %d", node_id, req_id));
+      if (ndb_extra_logging)
+      {
+        sql_print_information("NDB Binlog: Node: %d, subscribe from node %d,"
+                              " Subscriber bitmask %x%x",
+                              pOp->getNdbdNodeId(),
+                              req_id,
+                              share->subscriber_bitmap[node_id].bitmap[1],
+                              share->subscriber_bitmap[node_id].bitmap[0]);
+      }
       (void) pthread_mutex_unlock(&share->mutex);
       (void) pthread_cond_signal(&injector_cond);
       break;
@@ -1488,6 +1505,15 @@ ndb_binlog_thread_handle_schema_event(THD *thd, Ndb *ndb,
       (void) pthread_mutex_lock(&share->mutex);
       bitmap_clear_bit(&share->subscriber_bitmap[node_id], req_id);
       DBUG_PRINT("info",("UNSUBSCRIBE[%d] %d", node_id, req_id));
+      if (ndb_extra_logging)
+      {
+        sql_print_information("NDB Binlog: Node: %d, unsubscribe from node %d,"
+                              " Subscriber bitmask %x%x",
+                              pOp->getNdbdNodeId(),
+                              req_id,
+                              share->subscriber_bitmap[node_id].bitmap[1],
+                              share->subscriber_bitmap[node_id].bitmap[0]);
+      }
       (void) pthread_mutex_unlock(&share->mutex);
       (void) pthread_cond_signal(&injector_cond);
       break;