### 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
throw new FileAlreadyExistsException(blob.toString(), null, faee.getMessage());
                }
                return null;
            });
        }
    }
    @Override
    public void writeBlobAtomic(String blobName, BytesReference bytes, boolean failIfAlreadyExists) throws IOException {
        final String tempBlob = FsBlobContainer.tempBlobName(blobName);
        final Path tempBlobPath = new Path(path, tempBlob);
        final Path blob = new Path(path, blobName);
        store.execute((Operation<Void>) fileContext -> {
            writeToPath(bytes, tempBlobPath, fileContext, EnumSet.of(CreateFlag.CREATE, CreateFlag.SYNC_BLOCK));
            try {
                fileContext.rename(tempBlobPath, blob, failIfAlreadyExists ? Options.Rename.NONE : Options.Rename.OVERWRITE);
            } catch (org.apache.hadoop.fs.FileAlreadyExistsException faee) {
                throw new FileAlreadyExistsException(blob.toString(), null, faee.getMessage());
            }
            return null;
        });
    }
    private void writeToPath(BytesReference bytes, Path blobPath, FileContext fileContext, EnumSet<CreateFlag> createFlags)
        throws IOException {
        try (FSDataOutputStream stream = fileContext.create(blobPath, createFlags)) {
            bytes.writeTo(stream);
        }
    }
    private void writeToPath(
        InputStream inputStream,
        long blobSize,