Upgrade to 7
Upgrade procedure to Gluster 7, from Gluster 6.x, 5.x, 4.1.x, and 3.12.x
We recommend reading the release notes for 7.0 to be aware of the features and fixes provided with the release.
NOTE: Upgrade procedure remains the same as with 4.1.x release
Refer, to the Upgrading to 4.1 guide and follow documented instructions, replacing 7 when you encounter 4.1 in the guide as the version reference.
NOTE: If you have ever enabled quota on your volumes then after the upgrade is done, you will have to restart all the nodes in the cluster one by one so as to fix the checksum values in the quota.cksum file under the
/var/lib/glusterd/vols/<volname>/ directory.The peers may go into
Peer rejectedstate while doing so but once all the nodes are rebooted everything will be back to normal.
The following options are removed from the code base and require to be unset before an upgrade from releases older than release 4.1.0,
To check if these options are set use,
gluster volume info
and ensure that the above options are not part of the
section in the output of all volumes in the cluster.
If these are set, then unset them using the following commands,
# gluster volume reset <volname> <option>
NOTE: Failure to do the above may result in failure during online upgrades, and the reset of these options to their defaults needs to be done prior to upgrading the cluster.