Briefly, this error occurs when you’re trying to use Azure as a repository for Elasticsearch, but haven’t defined a client configuration. This configuration is necessary for Elasticsearch to interact with Azure. To resolve this issue, you need to define the client configuration in the Elasticsearch settings. This includes specifying the Azure account name and account key. Also, ensure that the Azure plugin is properly installed and enabled in Elasticsearch. If the error persists, check for any syntax errors in your configuration file.
This guide will help you check for common problems that cause the log ” If you want to use an azure repository; you need to define a client configuration. ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugins, repositories, azure, repository-azure, client.
Overview
An Elasticsearch snapshot provides a backup mechanism that takes the current state and data in the cluster and saves it to a repository (read snapshot for more information). The backup process requires a repository to be created first. The repository needs to be registered using the _snapshot endpoint, and multiple repositories can be created per cluster. The following repository types are supported:
Repository types
| Repository type | Configuration type |
|---|---|
| Shared file system | Type: “fs” |
| S3 | Type : “s3” |
| HDFS | Type :“hdfs” |
| Azure | Type: “azure” |
| Google Cloud Storage | Type : “gcs” |
Examples
To register an “fs” repository:
PUT _snapshot/my_repo_01
{
"type": "fs",
"settings": {
"location": "/mnt/my_repo_dir"
}
}Notes and good things to know
- S3, HDFS, Azure and Google Cloud require a relevant plugin to be installed before it can be used for a snapshot.
- The setting, path.repo: /mnt/my_repo_dir needs to be added to elasticsearch.yml on all the nodes if you are planning to use the repo type of file system. Otherwise, it will fail.
- When using remote repositories, the network bandwidth and repository storage throughput should be high enough to complete the snapshot operations normally, otherwise you will end up with partial snapshots.
Log Context
Log “If you want to use an azure repository; you need to define a client configuration.” class name is AzureRepositoryPlugin.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
@Override
public void reload(Settings settings) {
// secure settings should be readable
final Map clientsSettings = AzureStorageSettings.load(settings);
if (clientsSettings.isEmpty()) {
throw new SettingsException("If you want to use an azure repository; you need to define a client configuration.");
}
AzureStorageService storageService = azureStoreService.get();
assert storageService != null;
storageService.refreshSettings(clientsSettings);
}
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