[#MDEV-24685] SHOW ENGINE INNODB STATUS reports I/O thread 0 state: (null) ((null))

[MDEV-24685] SHOW ENGINE INNODB STATUS reports I/O thread 0 state: (null) ((null)) Created: 2021-01-26 Updated: 2022-12-16 Resolved: 2021-01-29
Status:	Closed
Project:	MariaDB Server
Component/s:	Storage Engine - InnoDB
Affects Version/s:	10.5.0
Fix Version/s:	10.5.9

Type:

Bug

Priority:

Major

Reporter:

Marko Mäkelä

Assignee:

Vladislav Vaintroub

Resolution:

Fixed

Votes:

Labels:

regression-10.5

Issue Links:

Problem/Incident
is caused by	~~MDEV-16264~~	Implement a common work queue for Inn...	Closed

Description

The output of SHOW ENGINE INNODB STATUS includes a useless-looking section like the following:

--------

FILE I/O

--------

I/O thread 0 state: (null) ((null))

I/O thread 1 state: (null) ((null))

I/O thread 2 state: (null) ((null))

I/O thread 3 state: (null) ((null))

I/O thread 4 state: (null) ((null))

I/O thread 5 state: (null) ((null))

I/O thread 6 state: (null) ((null))

I/O thread 7 state: (null) ((null))

I/O thread 8 state: (null) ((null))

I/O thread 9 state: (null) ((null))

This output comes from the following code in srv_printf_innodb_monitor():

	fputs("--------\n"

	      "FILE I/O\n"

	      "--------\n", file);

	os_aio_print(file);

I would suggest that we remove the above code as well as all references to srv_io_thread_op_info and srv_io_thread_function.

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