diff options
Diffstat (limited to 'release_docs')
| -rw-r--r-- | release_docs/RELEASE.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index 2d8eb32..d82167e 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -591,6 +591,21 @@ Bug Fixes since HDF5-1.14.0 release Library ------- + - Fixed an issue where the Subfiling VFD's context object cache could + grow too large + + The Subfiling VFD keeps a cache of its internal context objects to + speed up access to a context object for a particular file, as well + as access to that object across multiple opens of the same file. + However, opening a large amount of files with the Subfiling VFD over + the course of an application's lifetime could cause this cache to grow + too large and result in the application running out of available MPI + communicator objects. On file close, the Subfiling VFD now simply + evicts context objects out of its cache and frees them. It is assumed + that multiple opens of a file will be a less common use case for the + Subfiling VFD, but this can be revisited if it proves to be an issue + for performance. + - Fixed error when overwriting certain nested variable length types Previously, when using a datatype that included a variable length type |