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pybind/mgr/balancer: two more fixes #20788

Merged
merged 3 commits into from Mar 9, 2018
Merged

pybind/mgr/balancer: two more fixes #20788

merged 3 commits into from Mar 9, 2018

Commits on Mar 7, 2018

  1. pybind/mgr/balancer: skip out/crush-out osds 

    Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
    @xiexingguo
    xiexingguo committed Mar 7, 2018
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Commits on Mar 8, 2018

  1. pybind/mgr/balancer: s/iteritems/iterkeys/ 

    We don't care about the values here.

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
    @xiexingguo
    xiexingguo committed Mar 8, 2018
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  2. pybind/mgr/balancer: sanity check against empty roots 

    To avoid crashes as below:
```
File "/usr/lib/ceph/mgr/balancer/module.py", line 181, in calc_stats
    score += target[k] * (math.erf(((adjusted - avg)/avg) / math.sqrt(2.0)))
ZeroDivisionError: float division by zero
```

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>
    @xiexingguo
    xiexingguo committed Mar 8, 2018
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