mariadb-cluster | MariaDB Galera cluster running on CoreOS | Continuous Deployment library
kandi X-RAY | mariadb-cluster Summary
kandi X-RAY | mariadb-cluster Summary
MariaDB Galera cluster running on CoreOS using the official Docker images
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QUESTION
I have three node Galera cluster setup with MariaDB, I see a repeating message for one of the node where it desyncs itself from cluster and resyncs within few seconds. This message is repeating every hour. Though it is just a notice, I would like to understand the reason. Configuration on all the servers is same. Does anyone has idea why this happens ? or if anybody faced similar problem of this sort. Below are the details.
MariaDB version 10.3.12
Galera version: 25.3.23-1
OS: RHEL 7.4
State transfer mechanism: default
Below is my Galera configuration on the node which has above mentioned observation.
...ANSWER
Answered 2020-Aug-31 at 04:35I could find out, I missed the fact that periodic backup was running on the node via Mariabackup tool. During that time node de-syncs itself from cluster for consistency.
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Install mariadb-cluster
Recommended: Use the hosted generator app
If you prefer to run the app locally, clone this repository in your local machine, then open the generator.html file with a web browser. Using one of the "evergreen browsers" (Edge, Chrome, Safari, Firefox) is recommended. You will need to be connected to the Internet for the web application to work properly. Please note that if you're having issues with the page not working while opening it from your local disk, you might need to manually set the "etcd2 Discovery URL" parameter, or put the page on a web server.
Azure Resource Manager: in this mode, an ARM template (a JSON document) is generated, ready to be deployed to Azure. The resulting ARM template includes the Cloud Config file too.
Only cloud-config.yaml: generates only the Cloud Config file, in plaintext and base64-encoded. This file can be used to startup the Galera Cluster on any public/private cloud.
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