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    <p>Hi,</p>
    <p>    I'm running some lab tests with lustre 2.12.2 in Oracle Linux
      Server release 7.6.  Last test I did was about migration and MDT
      splitting.  I started with a MGS+MDS node, and two OSS nodes, and
      one of the tests was to create two more MDSs and migrate data
      between then, until, after some time, I could delete the original
      MDS.  But something happened in the middle and the servers
      panicked/rebooted.<br>
    </p>
    <p>    I am now in what appears to be an lfsck bug.  After many
      other tests, I run lfsck_start, and after some time get this
      message on the nodes:</p>
    <p>MGS/MDS0:</p>
    <p><b><tt>[Mon Jul 22 17:42:25 2019] LustreError:
          24107:0:(osd_index.c:1872:osd_index_it_get()) NOT IMPLEMETED
          YET (move to 0x2481000002000000)</tt></b></p>
    <p>OSS1/MDS1</p>
    <p><b><tt>[Mon Jul 22 17:40:29 2019] LustreError:
          31558:0:(osd_index.c:1872:osd_index_it_get()) NOT IMPLEMETED
          YET (move to 0xa41300c002000000)</tt></b></p>
    <p>OST2/MDS2</p>
    <p><tt><b>[Mon Jul 22 17:40:32 2019] LustreError:
          8935:0:(osd_index.c:1872:osd_index_it_get()) NOT IMPLEMETED
          YET (move to 0xa013000003000000)</b></tt><b><tt></tt></b></p>
    <p><br>
    </p>
    <p>    And for current lfsck status, I run <b><tt>lctl get_param
          *.*.lfsck* | grep -E 'status|\.lfsck_lay|\.lfsck_name'</tt></b><br>
    </p>
    <p>MGS/MDS0:</p>
    <p><b><tt>mdd.mirror01-MDT0000.lfsck_layout=</tt></b><b><tt><br>
        </tt></b><b><tt>status: completed</tt></b><b><tt><br>
        </tt></b><b><tt>mdd.mirror01-MDT0000.lfsck_namespace=</tt></b><b><tt><br>
        </tt></b><b><tt>status: partial</tt></b></p>
    <p>OSS1/MDS1</p>
    <b><tt>mdd.mirror01-MDT0001.lfsck_layout=</tt></b><b><tt><br>
      </tt></b><b><tt>status: completed</tt></b><b><tt><br>
      </tt></b><b><tt>mdd.mirror01-MDT0001.lfsck_namespace=</tt></b><b><tt><br>
      </tt></b><b><tt>status: partial</tt></b><b><tt><br>
      </tt></b><b><tt>obdfilter.mirror01-OST0065.lfsck_layout=</tt></b><b><tt><br>
      </tt></b><b><tt>status: completed</tt></b><br>
    <br>
    <p>OST2/MDS2</p>
    <b><tt>mdd.mirror01-MDT0002.lfsck_layout=</tt></b><b><tt><br>
      </tt></b><b><tt>status: completed</tt></b><b><tt><br>
      </tt></b><b><tt>mdd.mirror01-MDT0002.lfsck_namespace=</tt></b><b><tt><br>
      </tt></b><b><tt>status: partial</tt></b><b><tt><br>
      </tt></b><b><tt>obdfilter.mirror01-OST0066.lfsck_layout=</tt></b><b><tt><br>
      </tt></b><b><tt>status: completed</tt></b><br>
    <p>    Is this a known bug?  How do I fix these "partial" lsfck
      runs?<br>
    </p>
    <p>    Thanks for any help,</p>
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              Jonny<br>
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                          <b>João Carlos Mendes Luís</b> </td>
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