[LU-10838] replay-single/89 fails with a single client

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.12.0
• Affects Version/s: Upstream
• Environment: single client setup
• Severity: 3
• Assignee: Alex Zhuravlev
• Reporter: Alex Zhuravlev

Description

when a single client is used, lfs df in client_up() doesn't really wait for recovery completion: ost1 is still waiting for missing client (just remoounted) and doesn't let new client to connection leaving corresponding OSC connection inactive. then check for ltd_active in lov_iocontrol() skips that inactive connection and lfs df finishes. in presence of another client similar ltd_active is set, so lfs df blocks on OSC connection to restarted ost1.