Hi all,

In my ceph cluster, I saw a pg membership change as below:

At osdmap epch 160, pg 1.184 was mapped to [4, 6].

        osdmaptool: osdmap file '160'
         parsed '1.184' -> 1.184
        1.184 raw [4,6] up [4,6] acting [4,6]

At osdmap epoch 161, however, pg 1.184 was mapped to [0, 5].

        osdmaptool: osdmap file '161'
         parsed '1.184' -> 1.184
        1.184 raw [0,5] up [0,5] acting [0,5]

The osdmap are attached.
Is it normal that the pg membership changes like this? I thought at
least one member will stay in the pg in this case?

--
Henry