Re: Can't recover pgs degraded/stuck unclean/undersized

Burkhard Linke <Burkhard.Linke@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> · Tue, 15 Nov 2016 14:08:39 +0100



    Hi,

    
    On 11/15/2016 01:55 PM, Webert de Souza
      Lima wrote:

    
      sure, as requested:

        
        cephfs was created using the following command:

        
        ceph osd pool create cephfs_metadata 128 128
        ceph osd pool create cephfs_data 128 128
        ceph fs new cephfs cephfs_metadata cephfs_data
        

        ceph.conf:

        https://paste.debian.net/895841/

        
        # ceph osd crush tree

        https://paste.debian.net/895839/

        
        # ceph osd crush rule list
        [
            "replicated_ruleset",
            "replicated_ruleset_ssd"
        ]
        

          # ceph osd crush rule dump
          https://paste.debian.net/895842/

          
    I assume that you want the cephfs_metadata pool to be located on the
    SSD.

    
    The crush rule uses host based distribution, but there are only two
    hosts available. The default replicated rule uses osd based
    distribution, that's why the other pools aren't affected.

    
    You have configured the default number of replicates to 3, so the
    ssd rule cannot be satisfied with two host. You either need to put
    the metadata pool on the HDD, too, or use a pool size of 2 (which is
    not recommended).

    
    Regards,

    Burkhard
    -- 
Dr. rer. nat. Burkhard Linke
Bioinformatics and Systems Biology
Justus-Liebig-University Giessen
35392 Giessen, Germany
Phone: (+49) (0)641 9935810
  

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