Can not start azure client – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2-2

Briefly, this error occurs when Elasticsearch is unable to initialize the Azure client, which is often used for snapshot and restore operations. This could be due to incorrect configuration settings, missing Azure plugins, or invalid Azure credentials. To resolve this issue, you can verify your Azure credentials, ensure the Azure plugin is properly installed and updated, and check your Elasticsearch configuration settings for any errors. Additionally, ensure that your Elasticsearch instance has the necessary permissions to access the Azure storage account.

This guide will help you check for common problems that cause the log ” can not start azure client: {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cloud-aws, cloud-azure, plugins and repository-azure.

Log Context

Log “can not start azure client: {}” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         Configuration configuration;
        try {
            configuration = ManagementConfiguration.configure(new URI(Azure.ENDPOINT);
                    subscriptionId; keystorePath; keystorePassword; keystoreType);
        } catch (IOException|URISyntaxException e) {
            logger.error("can not start azure client: {}"; e.getMessage());
            computeManagementClient = null;
        logger.trace("creating new Azure client for [{}]; [{}]"; subscriptionId; serviceName);
        computeManagementClient = ComputeManagementService.create(configuration);


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