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[PCA 3.x] How to Re-initialize a MySQL Data Node (Doc ID 2866917.1)

Last updated on JANUARY 06, 2023

Applies to:

Private Cloud Appliance X9-2 - Version Not Applicable and later
Linux x86-64


Sometimes when the Data Nodes mismatch, they will be unable to sync on startup.

This may result in an NDB data node being forced into a reboot loop.

The Data Node must be reinitialized to force it to sync data from other nodes.

WARNING: This will erase ALL data on the affected data node, take a backup before proceeding.

The "ndb_mgm -e show" command will constantly show a data node in "not connected" or "starting" states.

Tailing the /var/lib/mysql-cluster/ndb_*_cluster.log files will show a node constantly being disconnected. 


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