Import of large schema fails with unexpected end of JSON input (DCNE-301)

[juchowan]

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Terraform Version

1.5.7

MSO version

• V 4.2.3k

APIC version and APIC Platform for Site Level Resources

• V 5.2

Affected Resource(s)

• various resources affected

Terraform Configuration Files

import {
  to = module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg["<schema>/<template>/<AP>/<EPG>"]
  id = "<id>/template/<template>/anp/<AP>/epg/<EPG>"
}

Debug Output

2025-01-26T20:37:42.983Z [DEBUG] provider.terraform-provider-mso_v1.4.0: 2025/01/26 20:37:42 Error occured while json parsing unexpected end of JSON input
2025-01-26T20:37:42.984Z [TRACE] NodeAbstractResouceInstance.writeResourceInstanceState to prevRunState for module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg["<schema>/<template>/<AP>/<EPG>"]
2025-01-26T20:37:42.984Z [TRACE] NodeAbstractResouceInstance.writeResourceInstanceState: writing state object for module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg["<schema>/<template>/<AP>/<EPG>"]
2025-01-26T20:37:42.984Z [ERROR] vertex "module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg[\"<schema>/<template>/<AP>/<EPG>\"]" error: unexpected end of JSON input
2025-01-26T20:37:42.984Z [TRACE] vertex "module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg[\"<schema>/<template>/<AP>/<EPG>\"]": visit complete, with errors

2025-01-26T20:57:29.875Z [TRACE] vertex "module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg (expand)": dynamic subgraph encountered errors: unexpected end of JSON input
2025-01-26T20:57:29.875Z [ERROR] vertex "module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg (expand)" error: unexpected end of JSON input
2025-01-26T20:57:29.875Z [TRACE] vertex "module.ndo.mso_schema_template_anp_epg.schema_template_anp_epg (expand)": visit complete, with errors

All resources that didn't complete import/read prompt following errors in the console:

Error: Cannot import to non-existent resource address

Importing to resource address module.ndo.mso_schema_site_anp_epg.schema_site_anp_epg["<schema>/<template>/<AP>/<EPG>/<site>"] is not possible, because that address does
not exist in configuration. Please ensure that the resource key is correct, or remove this import block.

Panic Output

Expected Behavior

We suspect a bottleneck in a network as we see some packets retransmitted or out of order.
If corrupted JSON or incomplete JSON is received due to any kind of packet drop or bottleneck, it should retry the operation and continue, and prompt more meaningful error than Cannot import to non-existent resource address

Actual Behavior

Single resource failing will kill entire execution instead of retrying

Steps to Reproduce

1. terraform apply

Important Factoids

References

• #0000