7.6 Server’s change

In this section we move the GIT’s bare collection’s repository from master host to one other. The same procedure may also be used to backup and restore a collection on the current master host.

First we backup the collection on master host:

# tar -C /var/lib/mediatex/MDTX MDTX-COLL -zcf backup.tgz

Next we restore it on the host we choose as new master and we re-add the collection so as to force a fresh checkout:

# rm -fr /var/lib/mediatex/MDTX/MDTX-COLL
# tar -C /var/lib/mediatex/MDTX/ -zxf backup.tgz
# mediatex adm add coll COLL

• If the tarball is extracted on the same host (so as to restore an old state of the collection), it is enough.
• If we move the git bare repository to another host, all hosts will have to re-subscribe :

  # mediatex adm add coll MDTX-COLL@NEW-MASTER
  

All in all, when “upgrade” fails we can ever re-subscribe to re-synchronise collection.