Microsoft Fabric OneLake Connector

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Troubleshooting a mapping or mapping task

Mapping failed with a Java heap space error: When you read from or write to large data sets in Microsoft Fabric OneLake, certain mappings might fail with the following error:; [ERROR] java.lang.OutOfMemoryError: Java heap space; You must increase the heap size to run the mappings successfully. The recommended heap size is 1 GB.; Perform the following steps to configure the JVM options in the Secure Agent to increase the memory for the Java heap size:
Select
Administrator
Runtime Environments
.
On the Runtime Environments
page, select the Secure Agent for which you want to increase memory from the list of available Secure Agents.
In the upper-right corner, click
Edit
.
In the
System Configuration Details
section, select
Data Integration Server
as the service and
DTM
as the type.
Edit the
JVMOption
field and set the value to
-Xmx1024m
.
The recommended heap size is 1 GB. You can increase the heap size based on the data you want to process.

Click
Save
.