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如何把节点设定为 `systemd` 进程运行

您可以将验证人作为 systemd 进程运行，以便服务器重新启动或當意外时自动重启(并有助于避免被惩罚!)。

Before following this guide you should have already set up your validator by following the How to validate article.

首先在 /etc/systemd/system/ 中创建名为 polkadot-validator.service 的文件。

touch /etc/systemd/system/polkadot-validator.service

在这个文件中，你会写下你想要在服务器启动/重新启动时运行的命令。

[Unit]
Description=Polkadot Validator

[Service]
ExecStart=PATH_TO_POLKADOT_BIN --validator --name SHOW_ON_TELEMETRY
Restart=always
RestartSec=120

[Install]
WantedBy=multi-user.target

WARNING: It's recommended to delay the restart of a node with RestartSec in the case of node crashes. It's possible that when a node crashes, consensus votes in GRANDPA aren't persisted to disk. In this case, there is potential to equivocate when immediately restarting. What can happen is the node will not recognize votes that didn't make it to disk, and will then cast conflicting votes. Delaying the restart will allow the network to progress past potentially conflicting votes, at which point other nodes will not accept them.

要自动启动此功能时:

systemctl enable polkadot-validator.service

手动启动:

systemctl start polkadot-validator.service

您可以检查它是否运作中:

systemctl status polkadot-validator.service

您可以查看日志 journalctl：

journalctl -f -u polkadot-validator