forked from HDFGroup/hdf5
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathRELEASE.txt
1398 lines (1039 loc) · 62.7 KB
/
RELEASE.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
HDF5 version 1.15.0 currently under development
================================================================================
INTRODUCTION
============
This document describes the differences between this release and the previous
HDF5 release. It contains information on the platforms tested and known
problems in this release. For more details check the HISTORY*.txt files in the
HDF5 source.
Note that documentation in the links below will be updated at the time of each
final release.
Links to HDF5 documentation can be found on The HDF5 web page:
https://portal.hdfgroup.org/display/HDF5/HDF5
The official HDF5 releases can be obtained from:
https://www.hdfgroup.org/downloads/hdf5/
Changes from Release to Release and New Features in the HDF5-1.16.x release series
can be found at:
https://portal.hdfgroup.org/display/HDF5/Release+Specific+Information
If you have any questions or comments, please send them to the HDF Help Desk:
CONTENTS
========
- New Features
- Support for new platforms and languages
- Bug Fixes since HDF5-1.14.0
- Platforms Tested
- Known Problems
- CMake vs. Autotools installations
New Features
============
Configuration:
-------------
- Incorporated HDF5 examples repository into HDF5 library.
The HDF5Examples folder is equivalent to the repository hdf5-examples.
As such it can build and test the examples during library build or after
the library is installed. Previously, the hdf5-repository archives were
downloaded for packaging with the library. Now the examples can be built
and tested without a packaged install of the library.
However to maintain the ability to use the HDF5Examples with an installed
library, it is necessary to translate or synch the option names from those
used by the library to those used by the examples. The typical pattern is:
<example option> = <library option>
HDF_BUILD_FORTRAN = ${HDF5_BUILD_FORTRAN}
- Added new option for CMake to mark tests as SKIPPED.
HDF5_DISABLE_TESTS_REGEX is a REGEX string that will be checked with
test names and if there is a match then that test's property will be
set to DISABLED. HDF5_DISABLE_TESTS_REGEX can be initialized on the
command line: "-DHDF5_DISABLE_TESTS_REGEX:STRING=<regex>"
See CMake documentation for regex-specification.
- Added defaults to CMake for long double conversion checks
HDF5 performs a couple of checks at build time to see if long double
values can be converted correctly (IBM's Power architecture uses a
special format for long doubles). These checks were performed using
TRY_RUN, which is a problem when cross-compiling.
These checks now use default values appropriate for most non-Power
systems when cross-compiling. The cache values can be pre-set if
necessary, which will preempt both the TRY_RUN and the default.
Affected values:
H5_LDOUBLE_TO_LONG_SPECIAL (default no)
H5_LONG_TO_LDOUBLE_SPECIAL (default no)
H5_LDOUBLE_TO_LLONG_ACCURATE (default yes)
H5_LLONG_TO_LDOUBLE_CORRECT (default yes)
H5_DISABLE_SOME_LDOUBLE_CONV (default no)
Fixes GitHub #3585
- Improved support for Intel oneAPI
* Separates the old 'classic' Intel compiler settings and warnings
from the oneAPI settings
* Uses `-check nouninit` in debug builds to avoid false positives
when building H5_buildiface with `-check all`
* Both Autotools and CMake
- Added new options for CMake and Autotools to control the Doxygen
warnings as errors setting.
* HDF5_ENABLE_DOXY_WARNINGS: ON/OFF (Default: ON)
* --enable-doxygen-errors: enable/disable (Default: enable)
The default will fail compile if the doxygen parsing generates warnings.
The option can be disabled if certain versions of doxygen have parsing
issues. i.e. 1.9.5, 1.9.8.
Addresses GitHub issue #3398
- Added support for AOCC and classic Flang w/ the Autotools
* Adds a config/clang-fflags options file to support Flang
* Corrects missing "-Wl," from linker options in the libtool wrappers
when using Flang, the MPI Fortran compiler wrappers, and building
the shared library. This would often result in unrecognized options
like -soname.
* Enable -nomp w/ Flang to avoid linking to the OpenMPI library.
CMake can build the parallel, shared library w/ Fortran using AOCC
and Flang, so no changes were needed for that build system.
Fixes GitHub issues #3439, #1588, #366, #280
- Converted the build of libaec and zlib to use FETCH_CONTENT with CMake.
Using the CMake FetchContent module, the external filters can populate
content at configure time via any method supported by the ExternalProject
module. Whereas ExternalProject_Add() downloads at build time, the
FetchContent module makes content available immediately, allowing the
configure step to use the content in commands like add_subdirectory(),
include() or file() operations.
Removed HDF options for using FETCH_CONTENT explicitly:
BUILD_SZIP_WITH_FETCHCONTENT:BOOL
BUILD_ZLIB_WITH_FETCHCONTENT:BOOL
- Thread-safety + static library disabled on Windows w/ CMake
The thread-safety feature requires hooks in DllMain(), which is only
present in the shared library.
We previously just warned about this, but now any CMake configuration
that tries to build thread-safety and the static library will fail.
This cannot be overridden with ALLOW_UNSUPPORTED.
Fixes GitHub issue #3613
- Autotools builds now build the szip filter by default when an appropriate
library is found
Since libaec is prevalent and BSD-licensed for both encoding and
decoding, we build the szip filter by default now.
Both autotools and CMake build systems will process the szip filter the same as
the zlib filter is processed.
- Removed CMake cross-compiling variables
* HDF5_USE_PREGEN
* HDF5_BATCH_H5DETECT
These were used to work around H5detect and H5make_libsettings and
are no longer required.
- Running H5make_libsettings is no longer required for cross-compiling
The functionality of H5make_libsettings is now handled via template files,
so H5make_libsettings has been removed.
- Running H5detect is no longer required for cross-compiling
The functionality of H5detect is now exercised at library startup,
so H5detect has been removed.
- Updated HDF5 API tests CMake code to support VOL connectors
* Implemented support for fetching, building and testing HDF5
VOL connectors during the library build process and documented
the feature under doc/cmake-vols-fetchcontent.md
* Implemented the HDF5_TEST_API_INSTALL option that enables
installation of the HDF5 API tests on the system
- Added new CMake options for building and running HDF5 API tests
(Experimental)
HDF5 API tests are an experimental feature, primarily targeted
toward HDF5 VOL connector authors, that is currently being developed.
These tests exercise the HDF5 API and are being integrated back
into the HDF5 library from the HDF5 VOL tests repository
(https://github.com/HDFGroup/vol-tests). To support this feature,
the following new options have been added to CMake:
* HDF5_TEST_API: ON/OFF (Default: OFF)
Controls whether the HDF5 API tests will be built. These tests
will only be run during testing of HDF5 if the HDF5_TEST_SERIAL
(for serial tests) and HDF5_TEST_PARALLEL (for parallel tests)
options are enabled.
* HDF5_TEST_API_INSTALL: ON/OFF (Default: OFF)
Controls whether the HDF5 API test executables will be installed
on the system alongside the HDF5 library. This option is currently
not functional.
* HDF5_TEST_API_ENABLE_ASYNC: ON/OFF (Default: OFF)
Controls whether the HDF5 Async API tests will be built. These
tests will only be run if the VOL connector used supports Async
operations.
* HDF5_TEST_API_ENABLE_DRIVER: ON/OFF (Default: OFF)
Controls whether to build the HDF5 API test driver program. This
test driver program is useful for VOL connectors that use a
client/server model where the server needs to be up and running
before the VOL connector can function. This option is currently
not functional.
* HDF5_TEST_API_SERVER: String (Default: "")
Used to specify a path to the server executable that the test
driver program should execute.
- Added support for CMake presets file.
CMake supports two main files, CMakePresets.json and CMakeUserPresets.json,
that allow users to specify common configure options and share them with others.
HDF added a CMakePresets.json file of a typical configuration and support
file, config/cmake-presets/hidden-presets.json.
Also added a section to INSTALL_CMake.txt with very basic explanation of the
process to use CMakePresets.
- Deprecated and removed old SZIP library in favor of LIBAEC library
LIBAEC library has been used in HDF5 binaries as the szip library of choice
for a few years. We are removing the options for using the old SZIP library.
Also removed the config/cmake/FindSZIP.cmake file.
- Enabled instrumentation of the library by default in CMake for parallel
debug builds
HDF5 can be configured to instrument portions of the parallel library to
aid in debugging. Autotools builds of HDF5 turn this capability on by
default for parallel debug builds and off by default for other build types.
CMake has been updated to match this behavior.
- Added new option to build libaec and zlib inline with CMake.
Using the CMake FetchContent module, the external filters can populate
content at configure time via any method supported by the ExternalProject
module. Whereas ExternalProject_Add() downloads at build time, the
FetchContent module makes content available immediately, allowing the
configure step to use the content in commands like add_subdirectory(),
include() or file() operations.
The HDF options (and defaults) for using this are:
BUILD_SZIP_WITH_FETCHCONTENT:BOOL=OFF
LIBAEC_USE_LOCALCONTENT:BOOL=OFF
BUILD_ZLIB_WITH_FETCHCONTENT:BOOL=OFF
ZLIB_USE_LOCALCONTENT:BOOL=OFF
The CMake variables to control the path and file names:
LIBAEC_TGZ_ORIGPATH:STRING
LIBAEC_TGZ_ORIGNAME:STRING
ZLIB_TGZ_ORIGPATH:STRING
ZLIB_TGZ_ORIGNAME:STRING
See the CMakeFilters.cmake and config/cmake/cacheinit.cmake files for usage.
- Added the CMake variable HDF5_ENABLE_ROS3_VFD to the HDF5 CMake config
file hdf5-config.cmake. This allows to easily detect if the library
has been built with or without read-only S3 functionality.
Library:
--------
- Implemented optimized support for vector I/O in the Subfiling VFD
Previously, the Subfiling VFD would handle vector I/O requests by
breaking them down into individual I/O requests, one for each entry
in the I/O vectors provided. This could result in poor I/O performance
for features in HDF5 that utilize vector I/O, such as parallel I/O
to filtered datasets. The Subfiling VFD now properly handles vector
I/O requests in their entirety, resulting in fewer I/O calls, improved
vector I/O performance and improved vector I/O memory efficiency.
- Added a simple cache to the read-only S3 (ros3) VFD
The read-only S3 VFD now caches the first N bytes of a file stored
in S3 to avoid a lot of small I/O operations when opening files.
This cache is per-file and created when the file is opened.
N is currently 16 MiB or the size of the file, whichever is smaller.
Addresses GitHub issue #3381
- Added new API function H5Pget_actual_selection_io_mode()
This function allows the user to determine if the library performed
selection I/O, vector I/O, or scalar (legacy) I/O during the last HDF5
operation performed with the provided DXPL.
- Added support for in-place type conversion in most cases
In-place type conversion allows the library to perform type conversion
without an intermediate type conversion buffer. This can improve
performance by allowing I/O in a single operation over the entire
selection instead of being limited by the size of the intermediate buffer.
Implemented for I/O on contiguous and chunked datasets when the selection
is contiguous in memory and when the memory datatype is not smaller than
the file datatype.
- Changed selection I/O to be on by default when using the MPIO file driver
- Added support for selection I/O in the MPIO file driver
Previously, only vector I/O operations were supported. Support for
selection I/O should improve performance and reduce memory uses in some
cases.
- Changed the error handling for a not found path in the find plugin process.
While attempting to load a plugin the HDF5 library will fail if one of the
directories in the plugin paths does not exist, even if there are more paths
to check. Instead of exiting the function with an error, just logged the error
and continue processing the list of paths to check.
- Implemented support for temporary security credentials for the Read-Only
S3 (ROS3) file driver.
When using temporary security credentials, one also needs to specify a
session/security token next to the access key id and secret access key.
This token can be specified by the new API function H5Pset_fapl_ros3_token().
The API function H5Pget_fapl_ros3_token() can be used to retrieve
the currently set token.
- Added a Subfiling VFD configuration file prefix environment variable
The Subfiling VFD now checks for values set in a new environment
variable "H5FD_SUBFILING_CONFIG_FILE_PREFIX" to determine if the
application has specified a pathname prefix to apply to the file
path for its configuration file. For example, this can be useful
for cases where the application wishes to write subfiles to a
machine's node-local storage while placing the subfiling configuration
file on a file system readable by all machine nodes.
- Added H5Pset_selection_io(), H5Pget_selection_io(), and
H5Pget_no_selection_io_cause() API functions to manage the selection I/O
feature. This can be used to enable collective I/O with type conversion,
or it can be used with custom VFDs that support vector or selection I/O.
- Added H5Pset_modify_write_buf() and H5Pget_modify_write_buf() API
functions to allow the library to modify the contents of write buffers, in
order to avoid malloc/memcpy. Currently only used for type conversion
with selection I/O.
Parallel Library:
-----------------
- Added optimized support for the parallel compression feature when
using the multi-dataset I/O API routines collectively
Previously, calling H5Dwrite_multi/H5Dread_multi collectively in parallel
with a list containing one or more filtered datasets would cause HDF5 to
break out of the optimized multi-dataset I/O mode and instead perform I/O
by looping over each dataset in the I/O request. The library has now been
updated to perform I/O in a more optimized manner in this case by first
performing I/O on all the filtered datasets at once and then performing
I/O on all the unfiltered datasets at once.
- Changed H5Pset_evict_on_close so that it can be called with a parallel
build of HDF5
Previously, H5Pset_evict_on_close would always fail when called from a
parallel build of HDF5, stating that the feature is not supported with
parallel HDF5. This failure would occur even if a parallel build of HDF5
was used with a serial HDF5 application. H5Pset_evict_on_close can now
be called regardless of the library build type and the library will
instead fail during H5Fcreate/H5Fopen if the "evict on close" property
has been set to true and the file is being opened for parallel access
with more than 1 MPI process.
Fortran Library:
----------------
- Add API support for Fortran MPI_F08 module definitions:
Adds support for MPI's MPI_F08 module datatypes: type(MPI_COMM) and type(MPI_INFO) for HDF5 APIs:
H5PSET_FAPL_MPIO_F, H5PGET_FAPL_MPIO_F, H5PSET_MPI_PARAMS_F, H5PGET_MPI_PARAMS_F
Ref. #3951
- Added Fortran APIs:
H5FGET_INTENT_F, H5SSEL_ITER_CREATE_F, H5SSEL_ITER_GET_SEQ_LIST_F,
H5SSEL_ITER_CLOSE_F, H5S_mp_H5SSEL_ITER_RESET_F
- Added Fortran Parameters:
H5S_SEL_ITER_GET_SEQ_LIST_SORTED_F, H5S_SEL_ITER_SHARE_WITH_DATASPACE_F
- Added Fortran Parameters:
H5S_BLOCK_F and H5S_PLIST_F
- The configuration definitions file, H5config_f.inc, is now installed
and the HDF5 version number has been added to it.
- Added Fortran APIs:
h5fdelete_f
- Added Fortran APIs:
h5vlnative_addr_to_token_f and h5vlnative_token_to_address_f
- Fixed an uninitialized error return value for hdferr
to return the error state of the h5aopen_by_idx_f API.
- Added h5pget_vol_cap_flags_f and related Fortran VOL
capability definitions.
- Fortran async APIs H5A, H5D, H5ES, H5G, H5F, H5L and H5O were added.
- Added Fortran APIs:
h5pset_selection_io_f, h5pget_selection_io_f,
h5pget_actual_selection_io_mode_f,
h5pset_modify_write_buf_f, h5pget_modify_write_buf_f
- Added Fortran APIs:
h5get_free_list_sizes_f, h5dwrite_chunk_f, h5dread_chunk_f,
h5fget_info_f, h5lvisit_f, h5lvisit_by_name_f,
h5pget_no_selection_io_cause_f, h5pget_mpio_no_collective_cause_f,
h5sselect_shape_same_f, h5sselect_intersect_block_f,
h5pget_file_space_page_size_f, h5pset_file_space_page_size_f,
h5pget_file_space_strategy_f, h5pset_file_space_strategy_f
- Removed "-commons" linking option on Darwin, as COMMON and EQUIVALENCE
are no longer used in the Fortran source.
Fixes GitHub issue #3571
C++ Library:
------------
-
Java Library:
-------------
-
Tools:
------
-
High-Level APIs:
----------------
- Added Fortran HL API: h5doappend_f
C Packet Table API:
-------------------
-
Internal header file:
---------------------
-
Documentation:
--------------
-
Support for new platforms, languages and compilers
==================================================
-
Bug Fixes since HDF5-1.14.0 release
===================================
Library
-------
- Memory usage growth issue
Starting with the HDF5 1.12.1 release, an issue (GitHub issue #1256)
was observed where running a simple program that has a loop of opening
a file, reading from an object with a variable-length datatype and
then closing the file would result in the process fairly quickly
running out of memory. Upon further investigation, it was determined
that this memory was being kept around in the library's datatype
conversion pathway cache that is used to speed up datatype conversions
which are repeatedly used within an HDF5 application's lifecycle. For
conversions involving variable-length or reference datatypes, each of
these cached pathway entries keeps a reference to its associated file
for later use. Since the file was being closed and reopened on each
loop iteration, and since the library compares for equality between
instances of opened files (rather than equality of the actual files)
when determining if it can reuse a cached conversion pathway, it was
determining that no cached conversion pathways could be reused and was
creating a new cache entry on each loop iteration during I/O. This
would lead to constant growth of that cache and the memory it consumed,
as well as constant growth of the memory consumed by each cached entry
for the reference to its associated file.
To fix this issue, the library now removes any cached datatype
conversion path entries for variable-length or reference datatypes
associated with a particular file when that file is closed.
Fixes GitHub #1256
- Suppressed floating-point exceptions in H5T init code
The floating-point datatype initialization code in H5Tinit_float.c
could raise FE_INVALID exceptions while munging bits and performing
comparisons that might involve NaN. This was not a problem when the
initialization code was executed in H5detect at compile time (prior
to 1.14.3), but now that the code is executed at library startup
(1.14.3+), these exceptions can be caught by user code, as is the
default in the NAG Fortran compiler.
Starting in 1.14.4, we now suppress floating-point exceptions while
initializing the floating-point types and clear FE_INVALID before
restoring the original environment.
Fixes GitHub #3831
- Fixed a file handle leak in the core VFD
When opening a file with the core VFD and a file image, if the file
already exists, the file check would leak the POSIX file handle.
Fixes GitHub issue #635
- Fixed some issues with chunk index metadata not getting read
collectively when collective metadata reads are enabled
When looking up dataset chunks during I/O, the parallel library
temporarily disables collective metadata reads since it's generally
unlikely that the application will read the same chunks from all
MPI ranks. Leaving collective metadata reads enabled during
chunk lookups can lead to hangs or other bad behavior depending
on the chunk indexing structure used for the dataset in question.
However, due to the way that dataset chunk index metadata was
previously loaded in a deferred manner, this could mean that
the metadata for the main chunk index structure or its
accompanying pieces of metadata (e.g., fixed array data blocks)
could end up being read independently if these chunk lookup
operations are the first chunk index-related operation that
occurs on a dataset. This behavior is generally observed when
opening a dataset for which the metadata isn't in the metadata
cache yet and then immediately performing I/O on that dataset.
This behavior is not generally observed when creating a dataset
and then performing I/O on it, as the relevant metadata will
usually be in the metadata cache as a side effect of creating
the chunk index structures during dataset creation.
This issue has been fixed by adding callbacks to the different
chunk indexing structure classes that allow more explicit control
over when chunk index metadata gets loaded. When collective
metadata reads are enabled, the necessary index metadata will now
get loaded collectively by all MPI ranks at the start of dataset
I/O to ensure that the ranks don't unintentionally read this
metadata independently further on. These changes fix collective
loading of the main chunk index structure, as well as v2 B-tree
root nodes, extensible array index blocks and fixed array data
blocks. There are still pieces of metadata that cannot currently
be loaded collectively, however, such as extensible array data
blocks, data block pages and super blocks, as well as fixed array
data block pages. These pieces of metadata are not necessarily
read in by all MPI ranks since this depends on which chunks the
ranks have selected in the dataset. Therefore, reading of these
pieces of metadata remains an independent operation.
- Fixed potential hangs in parallel library during collective I/O with
independent metadata writes
When performing collective parallel writes to a dataset where metadata
writes are requested as (or left as the default setting of) independent,
hangs could potentially occur during metadata cache sync points. This
was due to incorrect management of the internal state tracking whether
an I/O operation should be collective or not, causing the library to
attempt collective writes of metadata when they were meant to be
independent writes. During the metadata cache sync points, if the number
of cache entries being flushed was a multiple of the number of MPI ranks
in the MPI communicator used to access the HDF5 file, an equal amount of
collective MPI I/O calls were made and the dataset write call would be
successful. However, when the number of cache entries being flushed was
NOT a multiple of the number of MPI ranks, the ranks with more entries
than others would get stuck in an MPI_File_set_view call, while other
ranks would get stuck in a post-write MPI_Barrier call. This issue has
been fixed by correctly switching to independent I/O temporarily when
writing metadata independently during collective dataset I/O.
- Dropped support for MPI-2
The MPI-2 supporting artifacts have been removed due to the cessation
of MPI-2 maintenance and testing since version HDF5 1.12.
- Fixed a bug with the way the Subfiling VFD assigns I/O concentrators
During a file open operation, the Subfiling VFD determines the topology
of the application and uses that to select a subset of MPI ranks that
I/O will be forwarded to, called I/O concentrators. The code for this
had previously assumed that the parallel job launcher application (e.g.,
mpirun, srun, etc.) would distribute MPI ranks sequentially among a node
until all processors on that node have been assigned before going on to
the next node. When the launcher application mapped MPI ranks to nodes
in a different fashion, such as round-robin, this could cause the Subfiling
VFD to incorrectly map MPI ranks as I/O concentrators, leading to missing
subfiles.
- Fixed performance regression with some compound type conversions
In-place type conversion was introduced for most use cases in 1.14.2.
While being able to use the read buffer for type conversion potentially
improves performance by performing the entire I/O at once, it also
disables the optimized compound type conversion used when the destination
is a subset of the source. Disabled in-place type conversion when using
this optimized conversion and there is no benefit in terms of the I/O
size.
- Fixed an assertion in a previous fix for CVE-2016-4332
An assert could fail when processing corrupt files that have invalid
shared message flags (as in CVE-2016-4332).
The assert statement in question has been replaced with pointer checks
that don't raise errors. Since the function is in cleanup code, we do
our best to close and free things, even when presented with partially
initialized structs.
Fixes CVE-2016-4332 and HDFFV-9950 (confirmed via the cve_hdf5 repo)
- Fixed a file space allocation bug in the parallel library for chunked
datasets
With the addition of support for incremental file space allocation for
chunked datasets with filters applied to them that are created/accessed
in parallel, a bug was introduced to the library's parallel file space
allocation code. This could cause file space to not be allocated correctly
for datasets without filters applied to them that are created with serial
file access and later opened with parallel file access. In turn, this could
cause parallel writes to those datasets to place incorrect data in the file.
- Fixed an assertion failure in Parallel HDF5 when a file can't be created
due to an invalid library version bounds setting
An assertion failure could occur in H5MF_settle_raw_data_fsm when a file
can't be created with Parallel HDF5 due to specifying the use of a paged,
persistent file free space manager
(H5Pset_file_space_strategy(..., H5F_FSPACE_STRATEGY_PAGE, 1, ...)) with
an invalid library version bounds combination
(H5Pset_libver_bounds(..., H5F_LIBVER_EARLIEST, H5F_LIBVER_V18)). This
has now been fixed.
- Fixed bugs in selection I/O
Previously, the library could fail in some cases when performing selection
I/O with type conversion.
- Fixed CVE-2018-13867
A corrupt file containing an invalid local heap datablock address
could trigger an assert failure when the metadata cache attempted
to load the datablock from storage.
The local heap now verifies that the datablock address is valid
when the local heap header information is parsed.
- Fixed CVE-2018-11202
A malformed file could result in chunk index memory leaks. Under most
conditions (i.e., when the --enable-using-memchecker option is NOT
used), this would result in a small memory leak and and infinite loop
and abort when shutting down the library. The infinite loop would be
due to the "free list" package not being able to clear its resources
so the library couldn't shut down. When the "using a memory checker"
option is used, the free lists are disabled so there is just a memory
leak with no abort on library shutdown.
The chunk index resources are now correctly cleaned up when reading
misparsed files and valgrind confirms no memory leaks.
- Fixed an issue where an assert statement was converted to an
incorrect error check statement
An assert statement in the library dealing with undefined dataset data
fill values was converted to an improper error check that would always
trigger when a dataset's fill value was set to NULL (undefined). This
has now been fixed.
- Fixed an assertion failure when attempting to use the Subfiling IOC
VFD directly
The Subfiling feature makes use of two Virtual File Drivers, the
Subfiling VFD and the IOC (I/O Concentrator) VFD. The two VFDs are
intended to be stacked together such that the Subfiling VFD sits
"on top" of the IOC VFD and routes I/O requests through it; using the
IOC VFD alone is currently unsupported. The IOC VFD has been fixed so
that an error message is displayed in this situation rather than causing
an assertion failure.
- Fixed a potential bug when copying empty enum datatypes
Copying an empty enum datatype (including implicitly, as when an enum
is a part of a compound datatype) would fail in an assert in debug
mode and could fail in release mode depending on how the platform
handles undefined behavior regarding size 0 memory allocations and
using memcpy with a NULL src pointer.
The library is now more careful about using memory operations when
copying empty enum datatypes and will not error or raise an assert.
- Added an AAPL check to H5Acreate
A check was added to H5Acreate to ensure that a failure is correctly
returned when an invalid Attribute Access Property List is passed
in to the function. The HDF5 API tests were failing for certain
build types due to this condition not being checked previously.
- Fixed a bug in H5Ocopy that could generate invalid HDF5 files
H5Ocopy was missing a check to determine whether the new object's
object header version is greater than version 1. Without this check,
copying of objects with object headers that are smaller than a
certain size would cause H5Ocopy to create an object header for the
new object that has a gap in the header data. According to the
HDF5 File Format Specification, this is not allowed for version
1 of the object header format.
Fixes GitHub issue #2653
- Fixed H5Pget_vol_cap_flags and H5Pget_vol_id to accept H5P_DEFAULT
H5Pget_vol_cap_flags and H5Pget_vol_id were updated to correctly
accept H5P_DEFAULT for the 'plist_id' FAPL parameter. Previously,
they would fail if provided with H5P_DEFAULT as the FAPL.
- Fixed ROS3 VFD anonymous credential usage with h5dump and h5ls
ROS3 VFD anonymous credential functionality became broken in h5dump
and h5ls in the HDF5 1.14.0 release with the added support for VFD
plugins, which changed the way that the tools handled setting of
credential information that the VFD uses. The tools could be
provided the command-line option of "--s3-cred=(,,)" as a workaround
for anonymous credential usage, but the documentation for this
option stated that anonymous credentials could be used by simply
omitting the option. The latter functionality has been restored.
Fixes GitHub issue #2406
- Fixed memory leaks when processing malformed object header continuation messages
Malformed object header continuation messages can result in a too-small
buffer being passed to the decode function, which could lead to reading
past the end of the buffer. Additionally, errors in processing these
malformed messages can lead to allocated memory not being cleaned up.
This fix adds bounds checking and cleanup code to the object header
continuation message processing.
Fixes GitHub issue #2604
- Fixed memory leaks, aborts, and overflows in H5O EFL decode
The external file list code could call assert(), read past buffer
boundaries, and not properly clean up resources when parsing malformed
external data files messages.
This fix cleans up allocated memory, adds buffer bounds checks, and
converts asserts to HDF5 error checking.
Fixes GitHub issue #2605
- Fixed potential heap buffer overflow in decoding of link info message
Detections of buffer overflow were added for decoding version, index
flags, link creation order value, and the next three addresses. The
checkings will remove the potential invalid read of any of these
values that could be triggered by a malformed file.
Fixes GitHub issue #2603
- Memory leak
Memory leak was detected when running h5dump with "pov". The memory was allocated
via H5FL__malloc() in hdf5/src/H5FL.c
The fuzzed file "pov" was an HDF5 file containing an illegal continuation message.
When deserializing the object header chunks for the file, memory is allocated for the
array of continuation messages (cont_msg_info->msgs) in continuation message info struct.
As error is encountered in loading the illegal message, the memory allocated for
cont_msg_info->msgs needs to be freed.
Fixes GitHub issue #2599
- Fixed memory leaks that could occur when reading a dataset from a
malformed file
When attempting to read layout, pline, and efl information for a
dataset, memory leaks could occur if attempting to read pline/efl
information threw an error, which is due to the memory that was
allocated for pline and efl not being properly cleaned up on error.
Fixes GitHub issue #2602
- Fixed potential heap buffer overrun in group info header decoding from malformed file
H5O__ginfo_decode could sometimes read past allocated memory when parsing a
group info message from the header of a malformed file.
It now checks buffer size before each read to properly throw an error in these cases.
Fixes GitHub issue #2601
- Fixed potential buffer overrun issues in some object header decode routines
Several checks were added to H5O__layout_decode and H5O__sdspace_decode to
ensure that memory buffers don't get overrun when decoding buffers read from
a (possibly corrupted) HDF5 file.
- Fixed a heap buffer overflow that occurs when reading from
a dataset with a compact layout within a malformed HDF5 file
During opening of a dataset that has a compact layout, the
library allocates a buffer that stores the dataset's raw data.
The dataset's object header that gets written to the file
contains information about how large of a buffer the library
should allocate. If this object header is malformed such that
it causes the library to allocate a buffer that is too small
to hold the dataset's raw data, future I/O to the dataset can
result in heap buffer overflows. To fix this issue, an extra
check is now performed for compact datasets to ensure that
the size of the allocated buffer matches the expected size
of the dataset's raw data (as calculated from the dataset's
dataspace and datatype information). If the two sizes do not
match, opening of the dataset will fail.
Fixes GitHub issue #2606
- Fixed a memory corruption issue that can occur when reading
from a dataset using a hyperslab selection in the file
dataspace and a point selection in the memory dataspace
When reading from a dataset using a hyperslab selection in
the dataset's file dataspace and a point selection in the
dataset's memory dataspace where the file dataspace's "rank"
is greater than the memory dataspace's "rank", memory corruption
could occur due to an incorrect number of selection points
being copied when projecting the point selection onto the
hyperslab selection's dataspace.
- Fixed issues in the Subfiling VFD when using the SELECT_IOC_EVERY_NTH_RANK
or SELECT_IOC_TOTAL I/O concentrator selection strategies
Multiple bugs involving these I/O concentrator selection strategies
were fixed, including:
* A bug that caused the selection strategy to be altered when
criteria for the strategy was specified in the
H5FD_SUBFILING_IOC_SELECTION_CRITERIA environment variable as
a single value, rather than in the old and undocumented
'integer:integer' format
* Two bugs which caused a request for 'N' I/O concentrators to
result in 'N - 1' I/O concentrators being assigned, which also
lead to issues if only 1 I/O concentrator was requested
Also added a regression test for these two I/O concentrator selection
strategies to prevent future issues.
- Fix CVE-2021-37501 / GHSA-rfgw-5vq3-wrjf
Check for overflow when calculating on-disk attribute data size.
A bogus hdf5 file may contain dataspace messages with sizes
which lead to the on-disk data sizes to exceed what is addressable.
When calculating the size, make sure, the multiplication does not
overflow.
The test case was crafted in a way that the overflow caused the
size to be 0.
Fixes GitHub #2458
- Fixed an issue with collective metadata writes of global heap data
New test failures in parallel netCDF started occurring with debug
builds of HDF5 due to an assertion failure and this was reported in
GitHub issue #2433. The assertion failure began happening after the
collective metadata write pathway in the library was updated to use
vector I/O so that parallel-enabled HDF5 Virtual File Drivers (other
than the existing MPI I/O VFD) can support collective metadata writes.
The assertion failure was fixed by updating collective metadata writes
to treat global heap metadata as raw data, as done elsewhere in the
library.
Fixes GitHub issue #2433
- Fixed buffer overflow error in image decoding function.
The error occurred in the function for decoding address from the specified
buffer, which is called many times from the function responsible for image
decoding. The length of the buffer is known in the image decoding function,
but no checks are produced, so the buffer overflow can occur in many places,
including callee functions for address decoding.
The error was fixed by inserting corresponding checks for buffer overflow.
Fixes GitHub issue #2432
- Reading a H5std_string (std::string) via a C++ DataSet previously
truncated the string at the first null byte as if reading a C string.
Fixed length datasets are now read into H5std_string as a fixed length
string of the appropriate size. Variable length datasets will still be
truncated at the first null byte.
Fixes Github issue #3034
- Fixed write buffer overflow in H5O__alloc_chunk
The overflow was found by OSS-Fuzz https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58658
Java Library
------------
- Fixed switch case 'L' block missing a break statement.
The HDF5Array.arrayify method is missing a break statement in the case 'L': section
which causes it to fall through and throw an HDF5JavaException when attempting to
read an Array[Array[Long]].
The error was fixed by inserting a break statement at the end of the case 'L': sections.
Fixes GitHub issue #3056
Configuration
-------------
- Changed default of 'Error on HDF5 doxygen warnings' DOXYGEN_WARN_AS_ERROR option.
The default setting of DOXYGEN_WARN_AS_ERROR to 'FAIL_ON_WARNINGS' has been changed
to 'NO'. It was decided that the setting was too aggressive and should be a user choice.
The github actions and scripts have been updated to reflect this.
* HDF5_ENABLE_DOXY_WARNINGS: ON/OFF (Default: OFF)
* --enable-doxygen-errors: enable/disable (Default: disable)
- Removed an Autotools configure hack that causes problems on MacOS
A sed line in configure.ac was added in the past to paper over some
problems with older versions of the Autotools that would add incorrect
linker flags. This hack is not needed with recent versions of the
Autotools and the sed line errors on MacOS (though this was a silent
error that didn't break the build) so the hack has been removed.
Fixes GitHub issue #3843
- Fixed an issue where the h5tools_test_utils test program was being
installed on the system for Autotools builds of HDF5
The h5tools_test_utils test program was mistakenly added to bin_PROGRAMS
in its Makefile.am configuration file, causing the executable to be
installed on the system. The executable is now added to noinst_PROGRAMS
instead and will no longer be installed on the system for Autotools builds
of HDF5. The CMake configuration code already avoids installing the
executable on the system.
- Fixed a configuration issue that prevented building of the Subfiling VFD on macOS
Checks were added to the CMake and Autotools code to verify that CLOCK_MONOTONIC_COARSE,
PTHREAD_MUTEX_ADAPTIVE_NP and pthread_condattr_setclock() are available before attempting
to use them in Subfiling VFD-related utility code. Without these checks, attempting
to build the Subfiling VFD on macOS would fail.
- Fixes the ordering of INCLUDES when building with CMake
Include directories in the source or build tree should come before other
directories to prioritize headers in the sources over installed ones.
Fixes GitHub #1027
- The accum test now passes on macOS 12+ (Monterey) w/ CMake
Due to changes in the way macOS handles LD_LIBRARY_PATH, the accum test
started failing on macOS 12+ when building with CMake. CMake has been
updated to set DYLD_LIBRARY_PATH on macOS and the test now passes.
Fixes GitHub #2994, #2261, and #1289
- Changed the default settings used by CMake for the GZIP filter
The default for the option HDF5_ENABLE_Z_LIB_SUPPORT was OFF. Now the default is ON.
This was done to match the defaults used by the autotools configure.ac.
In addition, the CMake message level for not finding a suitable filter library was
changed from FATAL_ERROR (which would halt the build process) to WARNING (which
will print a message to stderr). Associated files and documentation were changed to match.
In addition, the default settings in the config/cmake/cacheinit.cmake file were changed to
allow CMake to disable building the filters if the tgz file could not be found. The option
to allow CMake to download the file from the original Github location requires setting