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Add more info about how to safely change the identity of a staked validator (#17843)

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(cherry picked from commit 193813d49a)

Co-authored-by: Michael Vines <mvines@gmail.com>
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mergify[bot]
2021-06-08 19:25:41 +00:00
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docs/src/running-validator/vote-accounts.md
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@ -165,6 +165,24 @@ change the validator identity. The follow steps assume that
to modify the validator identity in your vote account to modify the validator identity in your vote account
4. Restart your validator with the new identity keypair for the `--identity` argument 4. Restart your validator with the new identity keypair for the `--identity` argument
**Additional steps are required if your validator has stake.** The leader
schedule is computed two epochs in advance. Therefore if your old validator
identity was in the leader schedule, it will remain in the leader schedule for
up to two epochs after the validator identity change. If extra steps are not
taken your validator will produce no blocks until your new validator identity is
added to the leader schedule.
After your validator is restarted with the new identity keypair, per step 4,
start a second non-voting validator on a different machine with the old identity keypair
without providing the `--vote-account` argument.
This temporary validator should be run for two full epochs. During this time it will:
* Produce blocks for the remaining slots that are assigned to your old validator identity
* Receive the transaction fees and rent rewards for your old validator identity
It is safe to stop this temporary validator when your old validator identity is
no longer listed in the `solana leader-schedule` output.
### Vote Account Authorized Voter ### Vote Account Authorized Voter
The _vote authority_ keypair may only be changed at epoch boundaries and The _vote authority_ keypair may only be changed at epoch boundaries and