backend_active_tasks
Overview
View the resource usage of Query or Load tasks currently running on Backends.
Database
information_schema
Table Information
| Column Name | Type | Description |
|---|---|---|
| BE_ID | bigint | The ID of the Backend executing the task |
| FE_HOST | varchar(256) | The address of the Frontend that issued the task |
| QUERY_ID | varchar(256) | The ID of the query |
| TASK_TIME_MS | bigint | The task execution time |
| TASK_CPU_TIME_MS | bigint | The CPU time used by the task |
| SCAN_ROWS | bigint | The number of rows scanned |
| SCAN_BYTES | bigint | The number of bytes scanned |
| BE_PEAK_MEMORY_BYTES | bigint | The peak memory usage |
| CURRENT_USED_MEMORY_BYTES | bigint | The current memory usage |
| SHUFFLE_SEND_BYTES | bigint | The number of bytes shuffled and sent |
| SHUFFLE_SEND_ROWS | bigint | The number of rows shuffled and sent |
| QUERY_TYPE | varchar(256) | The type of query |