Bug #7710: Multiple rados bench instance will overwrite the metadata object - Ceph - Ceph

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Bug #7710

closed

Multiple rados bench instance will overwrite the metadata object

Added by Guang Yang about 10 years ago. Updated over 9 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Guang Yang

Category:

Target version:

% Done:

Source:

Community (user)

Tags:

Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

rados bench is useful to benchmark the cluster, however, there is one user case it does not support: read after write if there are multiple write instance, this is because the current implementation hard code the metadata object which will make the last update win, as a result, the metadata of the previous run is lost and user is unable to run a read (seq) based on that round of write.