### Elasticsearch Version

7.17.5

### Installed Plugins

_No response_

### Java Version

18.0.1.1

### OS Version

3.10.0-1160.76.1.el7.x86_64 

### Problem Description

[https://discuss.elastic.co/t/why-conf-dfs-replication-1-is-not-success/316405](url)

conf.dfs.replication = 1 is not be used


 protected HdfsBlobStore createBlobStore() {
        // initialize our blobstore using elevated privileges.
        SpecialPermission.check();
        final HdfsBlobStore blobStore = AccessController.doPrivileged(
            (PrivilegedAction<HdfsBlobStore>) () -> createBlobstore(uri, pathSetting, getMetadata().settings())
        );

     final Settings confSettings = repositorySettings.getByPrefix("conf.");
        for (String key : confSettings.keySet()) {
            logger.debug("Adding configuration to HDFS Client Configuration : {} = {}", key, confSettings.get(key));
            hadoopConfiguration.set(key, confSettings.get(key));
        }




### Steps to Reproduce

snapshots

### Logs (if relevant)

_No response_
plugins/repository-hdfs/src/main/java/org/elasticsearch/repositories/hdfs/HdfsBlobStore.java
private final Path root;
    private final FileContext fileContext;
    private final HdfsSecurityContext securityContext;
    private final int bufferSize;
    private final boolean readOnly;
    private volatile boolean closed;
    HdfsBlobStore(FileContext fileContext, String path, int bufferSize, boolean readOnly) throws IOException {
        this(fileContext, path, bufferSize, readOnly, false);
    }
    HdfsBlobStore(FileContext fileContext, String path, int bufferSize, boolean readOnly, boolean haEnabled) throws IOException {
        this.fileContext = fileContext;
        
        boolean restrictPermissions = (haEnabled == false);
        this.securityContext = new HdfsSecurityContext(fileContext.getUgi(), restrictPermissions);
        this.bufferSize = bufferSize;
        this.root = execute(fileContext1 -> fileContext1.makeQualified(new Path(path)));
        this.readOnly = readOnly;
        if (readOnly == false) {
            try {
                mkdirs(root);
            } catch (FileAlreadyExistsException ok) {