Fix loading plugin fails with missing directory GH issue HDFGroup#3248

release_docs/RELEASE.txt

@@ -169,9 +169,16 @@ New Features
 
  Library:
  --------
+ - Change 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().

src/H5PLpath.c

@@ -801,7 +801,7 @@ H5PL__find_plugin_in_path_table(const H5PL_search_params_t *search_params, hbool
 
  /* Search for the plugin in this path */
  if (H5PL__find_plugin_in_path(search_params, found, H5PL_paths_g[u], plugin_info) < 0)
- HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in path %s encountered an error",
+ HDONE_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in path %s encountered an error",
  H5PL_paths_g[u])
 
  /* Break out if found */