Big picture, my understanding is that you're trying to backup and restore the underlying Scylla keyspace ("idgraph1"), right (procedure described here https://docs.scylladb.com/operating-scylla/procedures/backup-restore/)?  If that restore isn't successful, or incomplete, you can end up with some "interesting" behavior from JG.

The error you're getting implies that the underlying keyspace isn't fully intact, and rows are missing, so let's take a look at the underlying backup/restore procedure.  I'd also make sure that there are no JG instances trying to communicate with Scylla during this process.

Are you backing up and restoring the same keyspace on the same Scylla cluster, or is one of those variables changing?  Are you running the backup and restore on all nodes of the scylla cluster (backup and restore is a per-node operation)?

Thanks,

Ryan  

On Wed, Apr 10, 2019 at 10:11 AM SAURABH VERMA <saurabh...@...> wrote:

Hi all

I am trying to recover a JG cluster backed by scyllaDB using steps at https://groups.google.com/d/msg/aureliusgraphs/WyJpzZ4Wcuw/AW4-1GXRfI0J

I am always getting the error as below

Could not find type for id: 2313

I am following below steps:-

- systemctl stop scylla-server

- rm -rf /var/lib/scylla/data/*

- rm -rf /var/lib/scylla/commitlog/*

- systemctl start scylla-server

- schema registration

- systemctl stop scylla-server

- data copy

- sudo chown -R scylla:scylla /var/lib/scylla/data/idgraph1

- systemctl start scylla-server

- nodetool repair

Please guide me whats the correct sequence of steps for recovery or any other way to recover JG data?

Thank

Saurabh

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