inspect_memory

inspect_memory(module_name)

This function returns the estimated memory usage for a specified module.

Arguments

module_name: The name of the module (VARCHAR).

NOTE: The following module names are supported (for more details, see the MemoryUsageTracker.java class):

• Load
• Compaction
• Export
• Delete
• Transaction
• Backup
• Task
• TabletInvertedIndex
• LocalMetastore
• Report
• MV
• Query
• Profile
• Agent
• Statistics
• Coordinator
• Dict

Return Value

Returns a VARCHAR string representing the estimated memory size (e.g., "100MB").

Examples

Example 1: Inspect current FE's Load module memory usage:

mysql> SELECT inspect_memory('Load');
+------------------------+
| inspect_memory('Load') |
+------------------------+
| 251.8KB                |
+------------------------+
1 row in set (0.00 sec)