Description

Adds DAOS support via the DAOSConnector.

Fixes N/A

Type of Change

• Breaking Change (fix or enhancement which changes existing semantics of the public interface)
• Enhancement (new features or improvements to existing functionality)
• Bug (fixes for a bug or issue)
• Internal (refactoring, style changes, testing, optimizations)
• Documentation update (changes to documentation or examples)
• Package (dependencies, versions, package metadata)
• Development (CI workflows, pre-commit, linters, templates)
• Security (security related changes)

Testing

Added a mock pydaos implementation and run unit tests against that. Also executed this example script on Sunspot with a DAOS pool.

from proxystore_ex.connectors.daos import DAOSConnector

POOL = ...

with DAOSConnector(
    pool=POOL,
    container='jgpaul-test',
    namespace='proxystore',
) as connector:
    key = connector.put(b'data')
    assert connector.exists(key)
    assert connector.get(key) == b'data'

    connector.evict(key)
    assert not connector.exists(key)

print('Part 1 completed!')

connector1 = DAOSConnector(
    pool=POOL,
    container='jgpaul-test',
    namespace='proxystore',
)
connector2 = DAOSConnector.from_config(connector1.config())

key = connector1.put(b'data')
assert connector2.get(key) == b'data'
connector1.evict(key)

keys = connector1.put_batch([b'data1', b'data2', b'data3'])
values = connector1.get_batch(keys)

assert len(values) == len(keys)
assert all(v is not None for v in values)

for key in keys:
    connector1.evict(key)

connector1.close()
connector2.close()

print('Part 2 completed!')

Pull Request Checklist

• I have read the Contributing and PR submission guides.

Please confirm the PR meets the following requirements.

• Tags added to PR (e.g., breaking, bug, enhancement, internal, documentation, package, development, security).
• Code changes pass pre-commit (e.g., black, mypy, ruff, etc.).
• Tests have been added to show the fix is effective or that the new feature works.
• New and existing unit tests pass locally with the changes.
• Docs have been updated and reviewed if relevant.