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docs: SIGUSR1 killing wrapper shell scripts (#16009)

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(cherry picked from commit 07dc522981)

Co-authored-by: Trent Nelson <trent@solana.com>
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mergify[bot]
2021-03-19 07:45:34 +00:00
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docs/src/running-validator/validator-start.md
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@ -357,6 +357,11 @@ very large over time and it's recommended that log rotation be configured.
The validator will re-open its when it receives the `USR1` signal, which is the
basic primitive that enables log rotation.
If the validator is being started by a wrapper shell script, it is important to
launch the process with `exec` (`exec solana-validator ...`) when using logrotate.
This will prevent the `USR1` signal from being sent to the script's process
instead of the validator's, which will kill them both.
#### Using logrotate
An example setup for the `logrotate`, which assumes that the validator is