Bug #24167: Module 'balancer' has failed: could not find bucket -14 - RADOS - Ceph

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Bug #24167

closed

Module 'balancer' has failed: could not find bucket -14

Added by Sage Weil almost 6 years ago. Updated almost 6 years ago.

Status:

Resolved

Priority:

Urgent

Assignee:

Sage Weil

Category:

Target version:

% Done:

Source:

Tags:

Backport:

mimic,luminous

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Component(RADOS):

Pull request ID:

Crash signature (v1):

Crash signature (v2):

Description

crushmap may contain choose_args for deleted buckets

            {
                "bucket_id": -14,
                "weight_set": [
                    []
                ]
            },

in teh choose_args section, but bucket -14 doesn't exist. THis is because it used to exist when the weight-set was created, but then was deleted, and the choose_args weights are still there.

Related issues 2 (0 open — 2 closed)

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Updated by Sage Weil almost 6 years ago

It looks like we also don't create weight-sets for new buckets. And if you create buckets and move things into them and try to set the weight-set weight on them you get something like

gnit:build (wip-24167) 05:08 PM $ bin/ceph osd crush weight-set reweight-compat osd.0 1.0
Error ENOENT: no weight-set for bucket -5no weight-set for bucket -6no weight-set for bucket -7no weight-set for bucket -8item 0 not found in crush map

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