[HDDS-7325] getDefaultBlockSize reports incorrect size

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.1.0
• Component/s: Ozone Client, Ozone Filesystem
• Assignee: Wei-Chiu Chuang
• Reporter: Michael Smith
• Created: 13/Oct/22 17:52
• Updated: 08/Jan/24 20:40

Description

Calling some operations on the Hadoop FileSystem interface backed by an Ozone FileSystem do not return the expected results when based on ozone-site.xml configuration options.

If I do something like

Configuration conf = new Configuration();
FileSystem fs = (new Path(uri)).getFileSystem(CONF);
fs.getDefaultSize()

it always returns the default value when I set ozone.scm.block.size in ozone-site.xml (also tried core-site.xml).

The only way to get the correct value is to
1. Pass an OzoneConfiguration object.
2. Disable fs cache with fs.ofs.impl.disable.cache: true in core-site.xml (so we don't have to pass OzoneConfiguration every place we fetch the FileSystem).

Having to explicitly pass an OzoneConfiguration object seems contrary to the principles of the Hadoop FileSystem abstraction.

Issue Links

• blocks: IMPALA-9437 Cannot get Ozone file block size after opening the file
• relates to: HDDS-4503 Provide info on block size via FileSystem