empty ibuf aio reads in innodb status

[flex]

Percona Server Version: 5.7.14-7.1.el7
OS: CentOS 7.2

Problem:

`SHOW ENGINE INNODB STATUS` gave an empty ibuf aio reads:

--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (read thread)
I/O thread 7 state: waiting for completed aio requests (read thread)
I/O thread 8 state: waiting for completed aio requests (read thread)
I/O thread 9 state: waiting for completed aio requests (read thread)
I/O thread 10 state: waiting for completed aio requests (write thread)
I/O thread 11 state: waiting for completed aio requests (write thread)
I/O thread 12 state: waiting for completed aio requests (write thread)
I/O thread 13 state: waiting for completed aio requests (write thread)
I/O thread 14 state: waiting for completed aio requests (write thread)
I/O thread 15 state: waiting for completed aio requests (write thread)
I/O thread 16 state: waiting for completed aio requests (write thread)
I/O thread 17 state: waiting for completed aio requests (write thread)
Pending normal aio reads: [0, 0, 0, 0, 0, 0, 0, 0] , aio writes: [0, 0, 0, 0, 0, 0, 0, 0] ,
 ibuf aio reads:, log i/o's:, sync i/o's:
Pending flushes (fsync) log: 0; buffer pool: 0
1296 OS file reads, 4121277 OS file writes, 163479 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s

Please have a look at the 4th line from the bottom line, should it be zero?

[Laurynas Biveinis (laurynas-biveinis)]

Indeed empty output here indicates that there are no used AIO segments at the time of printout.

This is something we inherited from Oracle MySQL - do you want to report it to them?

[flex (frostynova)]

Ok, Since this empty output caused our monitor script throw errors, I will report to Oracle, thanks.

[Laurynas Biveinis (laurynas-biveinis)]

Thank you. Please post the bug link here once you have it reported

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-3549