How to Resolve the findif Error When Starting a VIP Resource in PCS скачать в хорошем качестве

How to Resolve the findif Error When Starting a VIP Resource in PCS

Troubleshooting the `findif` failed error in PCS when setting up a VIP in a CentOS 7 cluster. Find out how to correctly configure your network interface and resolve connection issues. --- This video is based on the question https://stackoverflow.com/q/53963678/ asked by the user 'Txalamar' ( https://stackoverflow.com/u/8584402/ ) and on the answer https://stackoverflow.com/a/63973177/ provided by the user 'fg78nc' ( https://stackoverflow.com/u/6161898/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: PCS resource ipaddr2 failed to start with exitreason='[findif] failed' Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Resolving the findif Error in PCS while Setting Up a VIP Resource When configuring a Virtual IP (VIP) resource in a cluster environment using PCS on CentOS 7, you might encounter an error that can be frustrating and confusing. One common issue is related to the message indicating that the PCS resource failed to start with the exit reason [findif] failed. This error typically points to problems with the network interface configuration but can usually be resolved with a few systematic checks and updates. In this guide, we'll explore what this error means and guide you through resolving it. Let’s dive in! Understanding the Problem The error message you see often looks something like this: [[See Video to Reveal this Text or Code Snippet]] This indicates that the resource could not determine which network interface to bind the VIP to—hence the [findif] failed message. To understand this better, you need to confirm a few things about your network interface. Checking Your Network Interfaces Before making any changes, it is crucial to ensure that your network interface is set up correctly. List Your Network Interfaces: Run the following command to check the available interfaces: [[See Video to Reveal this Text or Code Snippet]] Look for Your NIC: In the output, ascertain that the required network interface (e.g., ens32 in your case) is present and configured correctly with a valid IP address. Solutions to the Error If you've confirmed your network interface is present but still encounter the [findif] failed error, follow these steps to resolve it: Step 1: Verify NIC Configuration in PCS First, ensure that your network interface card (NIC) is correctly set up in the PCS configuration. Run: [[See Video to Reveal this Text or Code Snippet]] Look for the section related to your VIP resource to see if the NIC is correctly specified. Step 2: Update the NIC for the Resource If you find that the NIC is either missing or incorrectly configured, you can update the resource to specify the correct NIC. This is how you do it: Use the following command to update your existing resource with the correct NIC name: [[See Video to Reveal this Text or Code Snippet]] Once updated, perform a cleanup of the resource to remove stale states: [[See Video to Reveal this Text or Code Snippet]] Step 3: Verify Resource Status After updating and cleaning up the resource, check the status of your VIP resource to confirm everything is functioning correctly: Run: [[See Video to Reveal this Text or Code Snippet]] You should now see that the resource is either active or ready, reflecting that the IP address is correctly bound to the specified NIC interface. Step 4: Final Check If you want a final confirmation that everything is working, you can run the command to list the IP addresses assigned to all your network interfaces: [[See Video to Reveal this Text or Code Snippet]] This allows you to verify that your desired VIP is indeed set up and correctly associated with the right interface. Conclusion Encountering the [findif] failed error when setting up a VIP resource in a PCS cluster can be a hassle, but resolving it is quite manageable with thorough checks and updates to your NIC configuration. By ensuring your network interface is defined in the cluster configuration, updating it as necessary, and performing a status check, you should be able to overcome this issue efficiently. If you continue to face challenges, consider revisiting your cluster networking settings or check online forums for more tailored advice. Happy clustering!