NetWorker: VMware inventory process fails "End of file or no input: max message length exceeded"

The NetWorker server's daemon.raw reports that the nsrvim process fails with "End of file or no input: max message length exceeded":

• Linux: /nsr/logs/daemon.raw
• Windows: <INSTALL_DRIVE>:\Program Files\EMC NetWorker\nsr\logs\daemon.raw
• See: NetWorker: How to use nsr_render_log to render .raw log files

MM/DD/YYYY HH:mm:SS  1 3 0 536868608 40998 0 NETWORKER_SERVER_NAME nsrdisp_nwbg RAP notice job 'nsrvim' progress message: Querying for inventory at https://VCENTER_NAME/sdk 
...
MM/DD/YYYY HH:mm:SS  1 3 0 402650880 40770 0 NETWORKER_SERVER_NAME nsrdisp_nwbg RAP notice job 'nsrvim' progress message: End of file or no input: max message length exceeded

NetWorker VMware Protection (NVP) Virtual Machine (VM) backup workflows fail.

This issue is raised to NetWorker engineering. This issue occurs in large vCenters with 2000+ VMs, though no fixed limit exists, as it depends on multiple VMware resources beyond the VM count. Inventory may succeed with over 2000 VMs, but issues can occur if more VMware resources are added or migrated into the vCenter.

Impacted NetWorker versions:

19.9.0.x -> 19.12.0.x

Code optimizations went into the nsrvim and nsrdisp_vcentertaskmngr functions in NetWorker 19.13.0.0.

Upgrade the NetWorker server to 19.13.0.0 (or later).

• NetWorker: How to Upgrade NetWorker and Best Practices Prior to Upgrade
• NVP vProxy: NetWorker nsrvim process runs every 15 minutes causing a high workload on vCenter Server and potential VPXD unavailability
• NVP vProxy: VMware View Does Not Refresh and all VM Backups Fail
• NVP vProxy: NetWorker vProxy Version Information