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Bug #16481
closed$ceph osd crush tunable hammer is NOT setting tunable profile to "hammer" and "straw_calc_version" to 1
% Done:
0%
Source:
Support
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
`$ceph osd crush tunable hammer` is NOT setting tunable profile to "hammer" and "straw_calc_version": 1
# ceph osd crush tunables hammer
# ceph osd crush show-tunables
{
"choose_local_tries": 0,
"choose_local_fallback_tries": 0,
"choose_total_tries": 50,
"chooseleaf_descend_once": 1,
"chooseleaf_vary_r": 1,
"straw_calc_version": 0, <--------------------
"allowed_bucket_algs": 54,
"profile": "unknown", <--------------------
"optimal_tunables": 0,
"legacy_tunables": 0,
"require_feature_tunables": 1,
"require_feature_tunables2": 1,
"require_feature_tunables3": 1,
"has_v2_rules": 1,
"has_v3_rules": 0,
"has_v4_buckets": 1
}
- Earlier I thought this could be a cosmetic bug not only setting the profile name but internally it has set the tunable to hammer.
# ceph osd crush tunables optimal
adjusted tunables profile to optimal
# ceph osd crush show-tunables
{
"choose_local_tries": 0,
"choose_local_fallback_tries": 0,
"choose_total_tries": 50,
"chooseleaf_descend_once": 1,
"chooseleaf_vary_r": 1,
"straw_calc_version": 1, <-------------------
"allowed_bucket_algs": 54,
"profile": "hammer", <-------------------
"optimal_tunables": 0,
"legacy_tunables": 0,
"require_feature_tunables": 1,
"require_feature_tunables2": 1,
"require_feature_tunables3": 1,
"has_v2_rules": 1,
"has_v3_rules": 0,
"has_v4_buckets": 1
}
- But I have cross verified with setting optimal tunable and directly giving hammer tunable name has a difference which is nothing but as given in $subject.
"$ceph osd crush tunable hammer is NOT setting tunable profile to "hammer" and "straw_calc_version" to 1"
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