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FRONTENDS_DISKS

frontends​

Name​

frontends

description​

Table-Value-Function, generate a temporary table named frontends_disks. This tvf is used to view the information of FE nodes 's disks in the doris cluster.

This function is used in FROM clauses.

syntax​

frontends_disks()

The table schema of frontends_disks() tvf:

mysql> desc function frontends_disks();
+-------------+------+------+-------+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+------+------+-------+---------+-------+
| Name | TEXT | No | false | NULL | NONE |
| Host | TEXT | No | false | NULL | NONE |
| DirType | TEXT | No | false | NULL | NONE |
| Dir | TEXT | No | false | NULL | NONE |
| Filesystem | TEXT | No | false | NULL | NONE |
| Capacity | TEXT | No | false | NULL | NONE |
| Used | TEXT | No | false | NULL | NONE |
| Available | TEXT | No | false | NULL | NONE |
| UseRate | TEXT | No | false | NULL | NONE |
| MountOn | TEXT | No | false | NULL | NONE |
+-------------+------+------+-------+---------+-------+
11 rows in set (0.14 sec)

The information displayed by the frontends_disks tvf is basically consistent with the information displayed by the show frontends disks statement. However, the types of each field in the frontends_disks tvf are more specific, and you can use the frontends_disks tvf to perform operations such as filtering and joining.

The information displayed by the frontends_disks tvf is authenticated, which is consistent with the behavior of show frontends disks, user must have ADMIN/OPERATOR privelege.

example​

mysql> select * from frontends_disk()\G
*************************** 1. row ***************************
Name: fe_fe1d5bd9_d1e5_4ccc_9b03_ca79b95c9941
Host: 172.XX.XX.1
DirType: log
Dir: /data/doris/fe-github/log
Filesystem: /dev/sdc5
Capacity: 366G
Used: 119G
Available: 228G
UseRate: 35%
MountOn: /data
......
12 row in set (0.03 sec)

keywords​

frontends_disks