Hi, The error means that some of your data could be in inconsistency state because of, for example, stopping of the node during the checkpoint process.
However, WAL and WAL archive can be required for cluster startup in some cases because they contain the recovery information for cache data. You can read it here: https://apacheignite.readme.io/docs/write-ahead-log I guess that you moved your data without moving of the WAL and/or WAL archive. Note that in case if you don't set the paths to WAL and WAL_ARC then Ignite will try to find them in IGNITE_HOME location. As I see Ivan asked you to copy: 1){$IGNITE_HOME}\work\db 2){$IGNITE_HOME}\work\db\wal But you said that you copied only work/db. Looks like without \work\db\wal it can't be applied. However, I suggest you to the backup the whole working directory that will contain: 1){$IGNITE_HOME}\work\db 2){$IGNITE_HOME}\work\db\wal 3){$IGNITE_HOME}\work\binary_meta 4){$IGNITE_HOME}\work\marshaler Last two will contain information about your classes. BR, Andrei -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
