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Server limits and rate limits

The sizes, counts and request rates that apply to servers, their files, backups, databases and actions.

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This page lists every fixed limit on a server, with what happens when you reach it. The plan sets the rest, and the page that covers each feature explains how to work within it.

Plan

Section titled Plan

The plan you order sets these. The Resources section of the server's Settings tab shows them, and changing the plan changes them.

What Limit
Memory, Disk and CPU Set by the plan.
Ports Port slots, including the primary port. Most plans allow 5. Over it: Allocation limit reached (5). Cannot add more ports to this server.
Databases Database slots. Over it: Database limit reached (3/3), with your count and the plan's limit.
Snapshot storage Set by the plan, and pooled across the account. How snapshot storage works explains it.
Server name 2–60 characters, chosen when you order. The dashboard has no way to rename a server.

Console

Section titled Console
What Limit
Consoles open at once 8 on one server and 32 across all servers, for each account. One more does not connect: its socket closes with code 4029, and the page shows Connection limit reached. Close other console sessions first.
Command length 1,000 characters. The console cuts a longer command at that length, and POST /command answers 422.
Commands per second 20 on one console. The console drops each command over that and shows Slow down.
Output kept on the page The last 2,000 lines.

Rate limits

Section titled Rate limits

We count these actions per account and per server. Each limit covers a rolling window.

Action Most per window Window
Power actions: start, stop, restart and kill 24 60 seconds
Wakes of a free server 48 60 seconds
Software actions: changes, installs, addon updates, resource pack and Java settings changes, and Bedrock pack imports 8 10 minutes
Compressing and extracting archives 24 60 seconds
Downloads from a URL 24 60 seconds
Import tests and starts 12 5 minutes
New databases 24 60 seconds
Backup restores 8 5 minutes

A request over the limit fails, and the dashboard shows Too many requests for this action. Please wait and try again. Through the API, the request answers 429:

JSON
{
  "detail": {
    "error": "rate_limited",
    "message": "Too many requests for this action. Please wait and try again.",
    "action": "container.power",
    "retry_after_seconds": 60
  }
}

action is container.power, container.wake, container.software, container.file_compress, container.file_pull, container.import, container.database or container.backup_restore. retry_after_seconds and the Retry-After header give the length of the window. A request refused this way does not count towards the limit.

Taking and restoring snapshots have no rate limit of their own. A server runs one snapshot or restore at a time instead.

Every API request also counts towards the limits for your account as a whole, which Rate limits describes.

Files

Section titled Files
What Limit
Path 1,024 characters. Over it: Path is too long.
File or folder name 255 characters, with no /. Over it: That file name is too long for the filesystem.
Items in one action 200, such as files to delete or move at once. Over it: Cannot operate on more than 200 items at once.
Upload in the dashboard 100 MB per file. Over it: File exceeds maximum upload size of 100 MB. Upload larger files over SFTP.
Saving a text file 8 MB. Over it: File is larger than 8 MB.
Opening a file in the editor 2 MB. A larger file downloads instead.
Download from a URL A public http or https address, up to 2,048 characters.
Extracting an archive on a free server 1 GB.
Changing files Not while the server is installing or being moved: File changes are paused while the server is installing.

Manage server files covers each action.

Import

Section titled Import
What Limit
Files and folders 250,000 in the folder you import.
One file No larger than the server's disk. A larger file is skipped.
Listing the remote folder 60 seconds for a test, 10 minutes for an import.
Length of an import 6 hours. After that: Import timed out.
Failed files 200. After that: Stopped after 200 files could not be copied.
Imports at once One per server.

Import a server from another host explains the import.

Snapshots

Section titled Snapshots
What Limit
Snapshot name 191 characters.
Leave out patterns 50, each up to 255 characters and 4,000 characters in all.
Snapshots or restores at once One per server.
Time to finish 12 hours. A snapshot still unfinished then is marked failed.
Download link Works for 6 hours by default.
Free servers Enough storage for one snapshot, and no download.
Storage The account's snapshot allowance. How snapshot storage works explains what happens when it is full.

Backups

Section titled Backups
What Limit
New backups None. Snapshots have replaced backups, and creating one answers 410.
Download link Works for 10 minutes.
Restores 8 per server in 5 minutes.

Databases

Section titled Databases
What Limit
Databases per server The plan's Database slots. Free servers have none.
Name suffix Lowercase letters, digits and _, up to 48 characters.
Password 24 random characters, set by us.

Schedules

Section titled Schedules
What Limit
Schedules per server 25. Over it: This server already has the maximum of 25 schedules. Delete one before creating another.
Tasks per schedule 25. Over it: A schedule can hold at most 25 tasks.
How often a schedule runs At most once every 60 seconds.
Name 120 characters.
Command in a task 1,000 characters. Over it: Command must be at most 1000 characters.
Delay before a task 24 hours (86,400 seconds). Over it: Task delay cannot exceed 24 hours.
Run history The last 20 runs in the dashboard, and up to 100 through the API.
Free servers No schedules.

Ports

Section titled Ports
What Limit
Ports on the shared address The plan's Port slots, from the range 10000–40000. Port 25565 is reserved there.
Ports on a floating IP 16, from 1024 to 65535. They do not count against the plan's limit.
Note on a port 64 characters.
Managed ports Do not count against the plan's limit.

Users

Section titled Users
What Limit
Users on one server No fixed number. Each one needs a Coritan account.

Software

Section titled Software
What Limit
Dependencies installed with an addon 25, through the API.
Packs in one Bedrock file 25.
Resource pack link 2,048 characters.
Resource pack prompt 1,000 characters.
Resource pack SHA-1 40 hexadecimal characters.
Java memory From half the plan's memory (at least 1024 MB) to the whole plan, in steps of 256 MB. The default is 80% of the plan, or 2048 MB on a free server.

SFTP

Section titled SFTP
What Limit
Port 2022.
Sign-in Your account password only. No SSH keys and no two-factor code.
Suspended or locked server Every sign-in is refused.

Free servers

Section titled Free servers

Free servers sleep when nobody plays, and leave out backups, databases, schedules and snapshot downloads. How free servers work lists every difference.

Section titled Related