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authorjhendersonHDF <jhenderson@hdfgroup.org>2023-02-20 14:49:34 (GMT)
committerGitHub <noreply@github.com>2023-02-20 14:49:34 (GMT)
commitb3da28b731e50f63bb1004b016bdf7ef33c5328b (patch)
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Fix issue with collective metadata writes of global heap data (#2480)
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diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt
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--- a/release_docs/RELEASE.txt
+++ b/release_docs/RELEASE.txt
@@ -207,6 +207,21 @@ Bug Fixes since HDF5-1.13.3 release
===================================
Library
-------
+ - 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.
+
+ (JTH - 2023/02/16, GH #2433)
+
- Seg fault on file close
h5debug fails at file close with core dump on a file that has an