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Reconfiguring PerconaXtraDB
This guide will give an overview on how KubeDB Enterprise operator reconfigures PerconaXtraDB
.
Before You Begin
- You should be familiar with the following
KubeDB
concepts:
How Reconfiguring PerconaXtraDB Process Works
The following diagram shows how KubeDB Enterprise operator reconfigures PerconaXtraDB
database components. Open the image in a new tab to see the enlarged version.
![Reconfiguring process of PerconaXtraDB](/docs/v2023.11.2/guides/percona-xtradb/reconfigure/overview/images/reconfigure.jpeg)
The Reconfiguring PerconaXtraDB process consists of the following steps:
At first, a user creates a
PerconaXtraDB
Custom Resource (CR).KubeDB
Community operator watches thePerconaXtraDB
CR.When the operator finds a
PerconaXtraDB
CR, it creates required number ofStatefulSets
and related necessary stuff like secrets, services, etc.Then, in order to reconfigure the
PerconaXtraDB
standalone or cluster the user creates aPerconaXtraDBOpsRequest
CR with desired information.KubeDB
Enterprise operator watches thePerconaXtraDBOpsRequest
CR.When it finds a
PerconaXtraDBOpsRequest
CR, it halts thePerconaXtraDB
object which is referred from thePerconaXtraDBOpsRequest
. So, theKubeDB
Community operator doesn’t perform any operations on thePerconaXtraDB
object during the reconfiguring process.Then the
KubeDB
Enterprise operator will replace the existing configuration with the new configuration provided or merge the new configuration with the existing configuration according to thePerconaXtraDBOpsRequest
CR.Then the
KubeDB
Enterprise operator will restart the related StatefulSet Pods so that they restart with the new configuration defined in thePerconaXtraDBOpsRequest
CR.After the successful reconfiguring of the
PerconaXtraDB
, theKubeDB
Enterprise operator resumes thePerconaXtraDB
object so that theKubeDB
Community operator resumes its usual operations.
In the next docs, we are going to show a step by step guide on reconfiguring PerconaXtraDB database components using PerconaXtraDBOpsRequest
CRD.