• 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. 

## 23.5.14.12 The ndbinfo cpudata Table 

## Notes 

## 23.5.14.13 The ndbinfo cpudata_1sec Table 

The cpudata  table provides data about CPU usage during the last second. 

The cpustat  table contains the following columns: 

• node_id 

Node ID 

• cpu_no 

CPU ID 

• cpu_online 

1 if the CPU is currently online, otherwise 0 

• cpu_userspace_time 

CPU time spent in userspace 

• cpu_idle_time 

CPU time spent idle 

• cpu_system_time 

CPU time spent in system time 

• cpu_interrupt_time 

CPU time spent handling interrupts (hardware and software) 

• cpu_exec_vm_time 

CPU time spent in virtual machine execution 

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. 

