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46 lines
1.4 KiB
Markdown
46 lines
1.4 KiB
Markdown
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# Kava-9 Rollback Instructions
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In the event that the Kava-9 relaunch is unsuccessful, we will restart the Kava-8 chain using the last known state.
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In order to restore the previous chain, the following data must be recovered by validators:
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- The database that contains the state of the previous chain (in ~/.kvd/data by default)
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- The priv_validator_state.json file of the validator (in ~/.kvd/data by default)
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If you don't have the database data, the Kava developer team or another validator will share a copy of the database via Amazon s3 or a similar service. You will be able to download a copy of the data and verify it before starting your node.
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If you don't have the backup priv_validator_state.json file, you will not have double sign protection on the first block. If this is the case, it's best to consult in the validator discord before starting your node.
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## Restoring state procedure
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1. Stop your node
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```sh
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kava stop
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```
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2. Copy the contents of your backup data directory back to the $KVD_HOME/data directory. By default this is ~/.kvd/data.
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```sh
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# Assumes backup is stored in "backup" directory
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rm -rf ~/.kvd/data
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mv backup/.kvd/data ~/.kvd/data
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```
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3. Install the previous version of kava
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```sh
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# from kava directory
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git checkout v0.15.2
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make install
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## verify version
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kvd version --long
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```
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4. Start kvd process
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```sh
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### be sure to remove --halt-time flag if it is set
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sudo systemctl daemon-reload
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sudo systemctl start kvd
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```
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