# Upgrade to Ghost v4, but a lot of 503 error

**URL:** <https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762>\
**Category:** Developer help\
**Created:** [March 16, 2021, 6:18am UTC](https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762 "2021-03-16T06:18:48Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![halfrost](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.ghost.org/halfrost/32/8986_2.png) [@halfrost](https://forum.ghost.org/u/halfrost)\
**Post date:** [March 16, 2021, 12:32pm UTC](https://forum.ghost.org/t/upgrade-to-ghost-v4-but-a-lot-of-503-error/20762/9 "2021-03-16T12:32:58Z")

</div>

I did not configure special systemd, it’s default setting by Ghost:

```auto
[Unit]
Description=Ghost systemd service for blog: halfrost-com
Documentation=https://docs.ghost.org

[Service]
Type=simple
WorkingDirectory=/var/www/ghost
User=993
Environment="NODE_ENV=production"
ExecStart=/usr/local/bin/node /usr/local/bin/ghost run
Restart=always

[Install]
WantedBy=multi-user.target

```

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