<div dir="ltr">Hi all,<div><br></div><div>I'm currently in process of upgrading a replicated cluster (1 x 4) from 3.6.3 to 3.10.5. The nodes run CentOS 6. However after upgrading the first node, the said node fails to connect to other peers (as seen via 'gluster peer status'), but somehow other non-upgraded peers can still see the upgraded peer as connected.</div><div><br></div><div>Writes to the Gluster volume via local mounts of non-upgraded peers are replicated to the upgraded peer, but I can't write via the upgraded peer as the local mount seems forced to read-only. </div><div><br></div><div>Launching heal operations from non-upgraded peers will output 'Commit failed on <upgraded peer IP>. Please check log for details'.</div><div><br></div><div>In addition, during upgrade process there were warning messages about my old vol files renamed with .rpmsave extension. I tried starting Gluster with my old vol files but the problem persisted. I tried generating new vol files with 'glusterd --xlator-option "*.upgrade=on" -N', still no avail.</div><div><br></div><div>Also I checked the brick log it had several messages about "failed to get client opversion". I don't know if this is pertinent. Could it be that the upgraded node cannot connect to older nodes but still can receive instructions from them? </div><div><br></div><div>Below are command outputs; some data are masked.</div><div>I'd provide more information if required. </div><div>Thanks in advance.</div><div><br></div><div>===> 'gluster volume status' ran on non-upgraded peers<br></div><div><br></div><div><div>Status of volume: gsnfs</div><div>Gluster process Port Online Pid</div><div>------------------------------------------------------------------------------</div><div>Brick gs-nfs01:/ftpdata 49154 Y 2931</div><div>Brick gs-nfs02:/ftpdata 49152 Y 29875</div><div>Brick gs-nfs03:/ftpdata 49153 Y 6987</div><div>Brick gs-nfs04:/ftpdata 49153 Y 24768</div><div>Self-heal Daemon on localhost N/A Y 2938</div><div>Self-heal Daemon on gs-nfs04 N/A Y 24788</div><div>Self-heal Daemon on gs-nfs03 N/A Y 7007</div><div>Self-heal Daemon on <IP> N/A Y 29866</div><div><br></div><div>Task Status of Volume gsnfs</div><div>------------------------------------------------------------------------------</div><div>There are no active volume tasks</div></div><div><br></div><div><br></div><div><br></div><div>===> 'gluster volume status' on upgraded peer</div><div><br></div><div><div>Gluster process TCP Port RDMA Port Online Pid</div><div>------------------------------------------------------------------------------</div><div>Brick gs-nfs02:/ftpdata 49152 0 Y 29875</div><div>Self-heal Daemon on localhost N/A N/A Y 29866</div><div><br></div><div>Task Status of Volume gsnfs</div><div>------------------------------------------------------------------------------</div><div>There are no active volume tasks</div></div><div><br></div><div><br></div><div><br></div><div>===> 'gluster peer status' on non-upgraded peer</div><div><br></div><div><div>Number of Peers: 3</div><div><br></div><div>Hostname: gs-nfs03</div><div>Uuid: 4c1544e6-550d-481a-95af-2a1da32d10ad</div><div>State: Peer in Cluster (Connected)</div><div><br></div><div>Hostname: <IP></div><div>Uuid: 17d554fd-9181-4b53-9521-55acf69ac35f</div><div>State: Peer in Cluster (Connected)</div><div>Other names:</div><div>gs-nfs02</div><div><br></div><div>Hostname: gs-nfs04</div><div>Uuid: c6d165e6-d222-414c-b57a-97c64f06c5e9</div><div>State: Peer in Cluster (Connected)</div></div><div><br></div><div><br></div><div><br></div><div>===> 'gluster peer status' on upgraded peer</div><div><br></div><div><div>Number of Peers: 3</div><div><br></div><div>Hostname: gs-nfs03</div><div>Uuid: 4c1544e6-550d-481a-95af-2a1da32d10ad</div><div>State: Peer in Cluster (Disconnected)</div><div><br></div><div>Hostname: gs-nfs01</div><div>Uuid: 90d3ed27-61ac-4ad3-93a9-3c2b68f41ecf</div><div>State: Peer in Cluster (Disconnected)</div><div>Other names:</div><div><IP></div><div><br></div><div>Hostname: gs-nfs04</div><div>Uuid: c6d165e6-d222-414c-b57a-97c64f06c5e9</div><div>State: Peer in Cluster (Disconnected)</div></div><div><br></div><div><div><br></div>-- <br><div class="gmail_signature">- Yong<br></div>
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