ndbinfo: The NDB Cluster Information Database 23.5.14.45 The ndbinfo server_operations Table The  server_operations  table contains entries for all ongoing  NDB  operations that the current SQL node (MySQL Server) is currently involved in. It effectively is a subset of the  cluster_operations  table, in which operations for other SQL and API nodes are not shown. The  server_operations  table contains the following columns: MySQL Server connection ID Node ID Block instance Transaction ID Operation type (see text for possible values) Operation state (see text for possible values) Table ID Fragment ID Client node ID Client block reference Transaction coordinator node ID Transaction coordinator block number Transaction coordinator block instance 4580 • tc_block_instance • tc_block_no • tc_node_id • client_block_ref • client_node_id • fragmentid • tableid • state • operation_type • transid • block_instance • node_id • mysql_connection_id