Skipper0707 opened a new issue, #10611:
URL: https://github.com/apache/ignite/issues/10611

   Hello,
   
   I have a three-node Apache Ignite cluster using version `2.14.0` on both 
persistent and in-memory mode, we had to bring down a node for maintenance two 
months ago and unfortunately, the issues on that server took about 2 months to 
be resolved. 
   
   Yesterday we were able to bring up the node and we did that by just turning 
on the server and starting the Apache Ignite `systemd` service. Issuing the 
`control.sh --baseline` command on the first node indicated that the second 
node (which was down for two months) is now online, problem is the data on the 
cluster appears to be reverted back to two months ago as well.
   
   Since the topology version had changed I figure the rebalancing procedure 
had taken effect and data on the other two nodes would overwrite the data on 
the second node but after `./control.sh --cache idle_verify' I got something 
like the below error:
   
   ```bash
   Consistency checked failed, found conflicts [ CounterConflicts=0, 
hashConflicts=512]
   ```
   
   I checked the output and it seemed the partition hash of the second node was 
different than the others so before doing anything else I decided to remove the 
second node from the cluster by `./control.sh --baseline remove Ignite02` which 
worked and `./control.sh --cache idle_verify` didn't show any conflicts 
anymore, however, the data is still two months old.
   
   I highly doubt that the cluster had overwritten the old data on its own, 
there is probably something that I've done wrong.
   
   Q: Is there any way to restore the correct data?
   Q2: If there is something wrong with what I've done, please tell to avoid 
future mistakes.
   
   Any help is appreciated.


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