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ALTER INSTANCE RELOAD TLS : Excessive Memory Usage (Doc ID 2823152.1)

Last updated on JANUARY 06, 2022

Applies to:

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

Symptoms

On : 8.0 version, SSL

MySQL 8 ALTER INSTANCE RELOAD TLS excessive memory usage after executing command.

https://dev.mysql.com/doc/en/alter-instance.html

When using large CRLs with TLS on MySQL ( at time of writing versions up to 8.0.27 ) it could be seen that a huge increase in memory was observed *for up to two iterations* when an "ALTER INSTANCE RELOAD TLS" command was executed with a suitably large CRL ( https://dev.mysql.com/doc/en/server-system-variables.html#sysvar_ssl_crl ).

This memory as reported by the RSS on the OS, appears not to be released.

 

Changes

n/a

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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