Re: [ceph-users] Uneven OSD data distribution

2018-02-15 Thread Joe Comeau
Hi What are you using your cluster for ? Are the pools rbd by chance and images for vm's of some sort Did you add any osds after the pools were created, or redeploy any ? Thanks Joe >>> Osama Hasebou 2/15/2018 6:14 AM >>> Hi All, I am seeing a lot of uneven distribution of data among the

Re: [ceph-users] Uneven OSD data distribution

2018-02-15 Thread David Turner
There are a lot of threads in the ML about rebalancing the data distribution in a cluster. The CRUSH algorithm is far from perfect when it comes to evenly distributing PGs, but it's fairly simple to work around and there are ceph tools that help with it. reweight-by-utilization being one of them.

[ceph-users] Uneven OSD data distribution

2018-02-15 Thread Osama Hasebou
Hi All, I am seeing a lot of uneven distribution of data among the OSDs on Jewel even thought their weight value is the same. Some can be 30, some 70, some 45 %. Is there a way to fix this to make them all evenly distributed ? Thanks! Regards, Ossi ___