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Pending Flushes (fsync), Buffer Pool and Innodb_data_pending_fsyncs Is Constantly Rising (Doc ID 2725705.1)

Last updated on NOVEMBER 16, 2020

Applies to:

MySQL Server - Version 8.0 and later
Information in this document applies to any platform.

Symptoms

Status variable Innodb_data_pending_fsyncs shows a continually rising, unreasonable value. 

In the SHOW ENGINE INNODB STATUS this is the same line:

It's important to note there really aren't that many pending flushes.  The number is incorrect.

 

Changes

No changes,  but the issue may be noticed under higher write load.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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