Can not get list of azure nodes Returning empty list of nodes – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch is unable to retrieve the list of nodes from Azure. This could be due to network connectivity issues, incorrect configuration settings, or Azure service disruptions. To resolve this issue, you can check your network connection, verify your Azure configuration settings, or check Azure’s service status. If the problem persists, you may need to contact Azure support for further assistance.

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This guide will help you check for common problems that cause the log ” can not get list of azure nodes: [{}]. Returning empty list of nodes. ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: azure, discovery-azure-classic, plugins, discovery.

Log Context

Log “can not get list of azure nodes: [{}]. Returning empty list of nodes.” classname is AzureSeedHostsProvider.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        } catch (AzureServiceDisableException e) {
            logger.debug("Azure discovery service has been disabled. Returning empty list of nodes.");
            return dynamicHosts;
        } catch (AzureServiceRemoteException e) {
            // We got a remote exception
            logger.warn("can not get list of azure nodes: [{}]. Returning empty list of nodes."; e.getMessage());
            logger.trace("AzureServiceRemoteException caught"; e);
            return dynamicHosts;
        }

        InetAddress ipAddress = null;

 

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