Bug #47674: osd: Handle possible null work items from scheduler (e.g. mclock scheduler). - Ceph - Ceph

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Bug #47674

closed

osd: Handle possible null work items from scheduler (e.g. mclock scheduler).

Added by Sridhar Seshasayee over 3 years ago. Updated over 3 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Sridhar Seshasayee

Category:

OSD

Target version:

% Done:

Source:

Tags:

Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

37431

Crash signature (v1):

Crash signature (v2):

Description

It's quite possible for a scheduler like mClock to return no work items
based on parameters like reservation, weight and limit. For e.g., if
a client exceeds its limit for a given time period, the scheduler returns
a response indicating that the operation in its queue will be scheduled at
a later point in time. The osd in such a scenario must handle this case.