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Ensure OS , uid + permissions are correct and writable for all MySQL product directories , including parent folder path (Doc ID 2435507.1)

Last updated on APRIL 12, 2022

Applies to:

MySQL Cluster - Version 7.4 and later
Information in this document applies to any platform.


Verify by inspection that the data directory permissions and ownership are minimally accessible to only the OS user necessary for MySQL / MCM / Server / Cluster.

Example cases where this may be necessary could include;

* Any updates to the environment where the uids for OS users are not centrally or otherwise managed ( could be different on every OS install )

* Moving raid arrays to another OS

* After major version OS upgrade / fresh install

* After a DR event where Storage is present to a new OS

* etc



A key indicator that something is awry is if the detailed directory listings show numbers in place of the OS user , eg




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