ndbinfo: The NDB Cluster Information Database • LQHKEY_OVERLOAD_READER : Count of instances of  LQHKEY_OVERLOAD  where the API reader (reads only) node was overloaded. • LQHKEY_OVERLOAD_NODE_PEER : Count of instances of  LQHKEY_OVERLOAD  where the next backup data node (writes only) was overloaded • LQHKEY_OVERLOAD_SUBSCRIBER : Count of instances of  LQHKEY_OVERLOAD  where a event subscriber (writes only) was overloaded. • LQHSCAN_SLOWDOWNS : Count of instances where a fragment scan batch size was reduced due to scanning API transporter overload. • node_id • cpu_no • cpu_online • cpu_userspace_time • cpu_idle_time • cpu_system_time • cpu_interrupt_time • cpu_exec_vm_time Notes 23.5.14.13 The ndbinfo cpudata_1sec Table The  cpudata  table is available only on Linux and Solaris operating systems. This table was added in NDB 8.0.23. The  cpudata_1sec  table provides data about CPU usage per second over the last 20 seconds. 4537 1 if the CPU is currently online, otherwise 0 CPU time spent in userspace CPU time spent idle CPU time spent in system time CPU time spent handling interrupts (hardware and software) CPU time spent in virtual machine execution CPU ID Node ID The  cpustat  table contains the following columns: The  cpudata  table provides data about CPU usage during the last second. 23.5.14.12 The ndbinfo cpudata Table