The index block with path {path} renders too much data. Rendering aborted to avoid running out of memory and freezing the system.

This message is displayed when an Index Block in the system renders a large amount of data which can not be safely rendered due to resource constraints. The size at which the application will stop rendering an Index Block can be configured:

  • Click System Menu -> Preferences -> Content
  • Locate the field Maximum Rendered Size of an Index Block (MB)

By default this setting is 5MB. You can increase this value if your instance of Cascade Server has sufficient resources to handle the resource demand. A good rule of thumb is to have about 5MB for every 1GB of RAM to which you have allocated to Cascade Server. For example, if you have 3GB of RAM allocated to the JVM running Cascade, you can change the Maximum Rendered Size of an Index Block (MB) setting to 15MB.

If you aren't sure how much RAM is being allocated to your Cascade Server instance, check out this article for identifying your current minimum and maximum heap sizes.