Hi, Could you please point out if i missed something? On Wed, Feb 2, 2022, 13:39 Surinder Mehra <redni...@gmail.com> wrote:
> Hey thanks for your suggestions. > > I tried restoring using control.sh but it doesn't seem to work. Below are > steps > 1. Started 3 nodes and added data using a thick client > 2. created a snapshot using with ./control.sh --snapshot create snapshot_1 > 3. I verified, the snapshot directory has data > 4. Stopped the cluster and cleared binary_data, marshaler and nodes > directory /db > 5. Started the cluster again, all 3 nodes > 6. Activate the cluster using ./control.sh --set-state ACTIVE > 7. Run restore command : ./control.sh --snapshot restore snapshot_1 --start > 8. Command was successful but data is not copied to cluster nodes. > > Please note that when I restarted the cluster, it created binary_data, > marshaler and nodes directories by default. > > Did I miss anything ? > > > On Tue, Feb 1, 2022 at 8:21 PM Maxim Muzafarov <mmu...@apache.org> wrote: > >> Hello, >> >> Your case looks correct to me, however, I'd like to mention some >> important points that may help you: >> - the directories structure of the snapshot has the same structure as >> the Ignite native persistence, so you may backup the original cluster >> node directory (for binary_data, marshaller and db) and move all the >> files right from the snapshot. >> - do not forget to backup and clear the original wal directory in case >> of restoration. >> - you may use control.sh --snapshot restore command to restore from a >> snapshot (this was added in 2.11) >> >> [1] https://issues.apache.org/jira/browse/IGNITE-13805 >> >> On Tue, 1 Feb 2022 at 16:28, Surinder Mehra <redni...@gmail.com> wrote: >> > >> > Hi, >> > After a few hiccups, I managed to restore the cluster state from the >> snapshot. Please confirm if they look correct. If so documentation page >> needs to be updated >> > >> > Create N nodes >> > Add some data to them >> > Create snapshot >> > Stop all nodes(cluster) >> > Delete binary_data, marsheller and sub directories of /work/db >> > Copy snapshots/snapshotname/db/binary_data to /work/db/, >> > Copy snapshots/snapshotname/db/marshaller to /work/db/ >> > Copy snapshots/snapshotname/db/{nodeid} dir to /work/db/ >> > Start cluster >> > Cluster should auto activate after all nodes join it >> > Cluster is ready >> > >> > >> > On Mon, Jan 31, 2022 at 7:14 PM Surinder Mehra <redni...@gmail.com> >> wrote: >> >> >> >> Hi, >> >> We are using ignite 2.11.1 to experiment with ignite snapshots. We >> tried steps mentioned on below page to restore ignite data from snapshot >> >> https://ignite.apache.org/docs/latest/snapshots/snapshots >> >> >> >> But we get the below error when we start a cluster after copying data >> manually as mentioned on the page. >> >> >> >> Steps: >> >> 1.Created 3 nodes and added 3 records >> >> >> >> 2.Created snapshot. >> >> 3. Stopped the cluster and removed files from binary_data and >> marshellar, not the directories. they are present but empty >> >> 4. removed nodeId directories and files under them from /work/db/ >> >> >> >> 5. Copied node id directories from snapshot directory to /work/db/. I >> guess the below step meant to say $IGNITE_HOME/work/db/ right ? >> >> >> >> Copy the files belonging to a node with the {node_id} from the >> snapshot into the $IGNITE_HOME/work/ directory. If the db/{node_id} >> directory is not located under the Ignite work dir then you need to copy >> data files there. >> >> >> >> Error : do we need to copy binary_data and marshaler files as well or >> something else missing ? >> >> >> >> Caused by: class org.apache.ignite.IgniteCheckedException: Cannot find >> metadata for object with compact footer (Ignite work directory might have >> been cleared after restart. Make sure that IGNITE_HOME does not point to a >> temp folder or any other folder that is destroyed/cleared on restarts) >> [typeId=-88020438, IGNITE_HOME='null'] >> >> >> >> Please note that ignite HOEM/work/db directory has all nodes data >> copied from snapshot, it is not cleared as indicated by error above >> >> >> >> >> >
