### 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/HdfsBlobContainer.java
private final HdfsBlobStore store;
    private final HdfsSecurityContext securityContext;
    private final Path path;
    private final int bufferSize;
    HdfsBlobContainer(BlobPath blobPath, HdfsBlobStore store, Path path, int bufferSize, HdfsSecurityContext hdfsSecurityContext) {
        super(blobPath);
        this.store = store;
        this.securityContext = hdfsSecurityContext;
        this.path = path;
        this.bufferSize = bufferSize;
    }
    
    private static final DeleteResult DELETE_RESULT = new DeleteResult(1L, 0L);
    @Override
    public boolean blobExists(String blobName) throws IOException {
        return store.execute(fileContext -> fileContext.util().exists(new Path(path, blobName)));
    }
    @Override
    public DeleteResult delete() throws IOException {
        store.execute(fileContext -> fileContext.delete(path, true));
        return DELETE_RESULT;