Failed to Read the Rank Table File (EI0004)

Symptom

The CANN log contains the keyword "is not a valid real path," as shown below:

[ERROR] HCCL(1104629,test_one_side):2025-10-28-17:45:13.679.684 [param_check.cc:66] [1104629][InitGroupStage][RanktableConfig]errNo[0x0000000005010001] path /ranktable.json is not a valid real path

Possible Cause

When the communicator is initialized based on the rank table file, the passed rank table file path does not exist or the permission is insufficient.

Solution

Change the rank table file path to the correct one or configure the correct read permission.