Daexim project worth being look at when we talk about backup/restore: https://wiki.opendaylight.org/view/Daexim:Main Related video showcasing some of its capabilities: https://www.youtube.com/watch?v=fCWuuS-_xy4&feature=youtu.be
HTH, Alexis 2017-02-21 9:56 GMT-05:00 Tom Pantelis <tompante...@gmail.com>: > > > On Tue, Feb 21, 2017 at 9:32 AM, Esther Terrero < > esther.terr...@ericsson.com> wrote: > >> Hi, >> >> >> >> Thanks a lot for the quick response. >> >> >> >> Please, see my doubts below. >> >> >> >> Thanks again and best regards/ >> >> Esther >> >> >> >> *From:* Tom Pantelis [mailto:tompante...@gmail.com] >> *Sent:* martes, 21 de febrero de 2017 12:48 >> *To:* Esther Terrero <esther.terr...@ericsson.com> >> *Cc:* controller-dev@lists.opendaylight.org >> *Subject:* Re: [controller-dev] Questions about Backup&Restore >> >> >> >> >> >> >> >> On Tue, Feb 21, 2017 at 6:34 AM, Esther Terrero < >> esther.terr...@ericsson.com> wrote: >> >> Hello, >> >> >> >> Please, I would appreciate if you could clarify me the questions below >> regarding backup and restore: >> >> >> >> 1. I see that when snapshots are generated they are generated for >> both the configuration and the operational data. What is the reason for >> having snapshots for operational data that are not going to be restored? >> >> A snapshot also contains the election term info and peer configuration >> which is needed for raft. >> >> (Esther) Then the election term info and the peer configuration, are they >> in both snapshots for config data and operational data even if they are >> redundant? (I understand that operational and config data are in the same >> shard, correct?) >> > > No - operational and config data are in different shards. > > >> >> 2. Upon performing a backup by means of the >> cluster-admin:backup-datastore rpc, is writing on the datastore stopped to >> ensure consistency while the backup takes place?, i.e., is the consistency >> ensured, for instance suspending modifications to the data (from NBI/SBI >> traffic) while the backup takes place? >> >> A backup does not suspend anything - it merely takes a snapshot. >> >> (Esther) How do we ensure then that while the snapshot is being taken in >> information there is consistent? >> >> >> >> 3. If we use LevelDB journaling, is LevelDB compaction blocked >> while backup takes place? >> >> >> >> No. >> >> 4. Does the backup generation imply the generation of an snapshot? >> If so, are the latest entries of the journal included in that snapshot? >> >> >> >> Yes >> >> >> >> Thanks a lot in advance and best regards/ >> >> Esther Terrero >> >> >> >> >> _______________________________________________ >> controller-dev mailing list >> controller-dev@lists.opendaylight.org >> https://lists.opendaylight.org/mailman/listinfo/controller-dev >> >> >> > > > _______________________________________________ > controller-dev mailing list > controller-dev@lists.opendaylight.org > https://lists.opendaylight.org/mailman/listinfo/controller-dev > >
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