Overview:
When exporting attachments from the Data Loader tool, the user sees an error: Java Heap Space.
Root Cause:
The Data Loader runs on Java and the issue occurs when the Java Virtual Machine (JVM) runs out of allocated memory.
Solution:
Lower the batch size in the Data Loader Settings to as low as possible, preferably 1.
The workaround is using Workbench to export the attachments.
Related Documentation:
N/A
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