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Understanding the Watchdog Crash: How to Stop "Server Has Stopped Responding" Errors

Learn why your Minecraft server crashes with 'Server has stopped responding' and how to resolve Watchdog errors on AwakeNode and other hosts.

AwakeNode Team · Reviewed by Harry · Updated 15 Oct 2026

Understanding the Watchdog

The Minecraft Watchdog is a built-in safety mechanism designed to prevent the server from hanging indefinitely. If the main server thread is blocked for more than 60 seconds (usually due to heavy processing or lag), the Watchdog assumes the server has frozen and forcibly shuts it down to prevent file corruption.

When this happens, you will see an error in your console logs stating: "A single server tick took 60.00 seconds (should be max 0.05) ... Considering it to be crashed, server will forcibly shutdown."

Common Causes

  • Heavy World Generation: Exploring new chunks too quickly can overwhelm the CPU.
  • Inefficient Plugins/Mods: Poorly optimised code can cause the main thread to hang.
  • Resource Exhaustion: Insufficient RAM or CPU overhead for your current player count or modpack.
  • Disk I/O Latency: Slow read/write speeds when saving large world files.

How to Resolve Watchdog Crashes

On AwakeNode

  1. Check Resource Usage: Use the AwakeNode panel to monitor your CPU and RAM usage during peak times. If you are consistently hitting your limits, consider upgrading your plan. Upgrading automatically adjusts your memory allocation (Xmx) without requiring manual configuration.
  2. Use the File Manager: If a specific plugin is causing the crash, use the AwakeNode File Manager to quickly rename or remove the plugin folder to test for stability without needing to use external SFTP software.
  3. Contact Support: If your server is crashing despite having sufficient resources, open a ticket with our support team. To add your own JVM flags, set a custom startup command in your server's Startup tab.

On Other Hosts / Manually

  1. Optimise Startup Flags: Ensure your startup command includes modern garbage collection flags (like G1GC or Aikar's Flags). You will need to edit your startup script or command line arguments manually to implement these.
  2. Adjust Memory Allocation: If your server is running out of memory, locate your startup script and increase the -Xmx value (e.g., -Xmx4G for 4GB of RAM). Ensure the host has enough overhead to accommodate this change.
  3. Profile the Server: Use tools like Spark to profile your server's performance. This will help you identify which specific entities, plugins, or chunks are causing the "tick" to take too long.
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  • Disable Watchdog (Not Recommended): In server.properties, you can set max-tick-time to -1. This disables the Watchdog entirely. Warning: This prevents the server from auto-restarting when frozen, which can lead to severe world corruption if the server hangs while writing data to the disk.

    • Questions

    Can I increase my server's RAM myself?+

    On AwakeNode, you simply upgrade your hosting plan and the memory allocation updates automatically. On other hosts, you must manually edit the -Xmx value in your startup command.

    Is it safe to disable the Watchdog?+

    It is generally not recommended. Disabling it prevents the server from shutting down when frozen, which often leads to corrupted world files and lost player data.

    What should I do if my server keeps crashing after removing plugins?+

    If the issue persists, open a support ticket with the AwakeNode team. We can review your crash logs to identify underlying issues with your world data or JVM configuration.

    Why does my server crash when players explore?+

    This is often caused by heavy world generation taxing the CPU. You may need to pre-generate your world chunks or upgrade to a plan with higher single-core CPU performance.

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    On this page

    • Understanding the Watchdog
    • Common Causes
    • How to Resolve Watchdog Crashes

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