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| HDF5 Last Updated on 2026-03-23 The HDF5 Field Guide

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H5FDhdfs.h File Reference
`#include "H5FDpublic.h"`

## Data Structures
struct | H5FD_hdfs_fapl_t
| Configuration structure for H5Pset_fapl_hdfs() / H5Pget_fapl_hdfs(). More...

## Macros
#define | H5FD__CURR_HDFS_FAPL_T_VERSION 1
#define | H5FD__HDFS_KERB_CACHE_PATH_SPACE 128
#define | H5FD__HDFS_NODE_NAME_SPACE 128
#define | H5FD__HDFS_USER_NAME_SPACE 128
#define | H5FD_HDFS (H5OPEN H5FD_HDFS_id_g)
#define | H5FD_HDFS_VALUE H5_VFD_HDFS

## Functions
herr_t | H5Pget_fapl_hdfs (hid_t fapl_id, H5FD_hdfs_fapl_t *fa_out)
| Queries a File Access Property List for H5FD_HDFS file driver properties.
herr_t | H5Pset_fapl_hdfs (hid_t fapl_id, H5FD_hdfs_fapl_t *fa)
| Modifies the file access property list to use the H5FD_HDFS driver.

## Macro Definition Documentation

## ◆ H5FD__CURR_HDFS_FAPL_T_VERSION

#define H5FD__CURR_HDFS_FAPL_T_VERSION 1

The version number of the H5FD_hdfs_fapl_t configuration structure for the H5FD_HDFS driver

Since
  1.8.22

## ◆ H5FD__HDFS_KERB_CACHE_PATH_SPACE

#define H5FD__HDFS_KERB_CACHE_PATH_SPACE 128

Max size of the kerberos cache path

Since
  1.10.6, back-ported to 1.8.22

## ◆ H5FD__HDFS_NODE_NAME_SPACE

#define H5FD__HDFS_NODE_NAME_SPACE 128

Max size of the node name

Since
  1.10.6, back-ported to 1.8.22

## ◆ H5FD__HDFS_USER_NAME_SPACE

#define H5FD__HDFS_USER_NAME_SPACE 128

Max size of the user name

Since
  1.10.6, back-ported to 1.8.22

## ◆ H5FD_HDFS

#define H5FD_HDFS (H5OPEN H5FD_HDFS_id_g)

ID for the HDFS VFD

## ◆ H5FD_HDFS_VALUE

#define H5FD_HDFS_VALUE H5_VFD_HDFS

Identifier for the hdfs VFD

Since
  1.14.0