vRanger Replication: Error: 2319 - FATAL repl_pkt_recv failed to receive packet (4037051)

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vRanger Replication: Error: 2319 - FATAL repl_pkt_recv failed to receive packet
Description

Replication fails with error message: "Error: 2319 - FATAL repl_pkt_recv failed to receive packet (short read (0 bytes, expected 8)) [at pkt_recv_unlock:84]"
Cause

This error means that the Source virtual appliance (VA) sends a request but never gets a reply from the Target VA. Therefore we must be experiencing a contention on the VAs' vCPU or Memory, or a Networking issue in the environment.
Resolution

Resolution 1:
Make sure that both virtual appliances can resolve the hostnames for the Hosts and vCenter.
Temporally allow a network policy of Any between the two sites to confirm if a network configuration is required.
Resolution 2:
Increase the CPU count and memory on the vRanger virtual appliance on both the source and target VAs:
1. Ensure that there are no jobs running.
2. Open the vSphere client. | Right-click on the vRanger virtual appliance and select Power > Shutdown Guest OS.
Once the VAs are powered down, change the CPU and memory counts
3. Right-click on the vRanger virtual appliance and choose Edit Settings
4. Increase the Memory, the minimum should be 4 GB.
5. Increase the CPU, 4 should be the minimum.
6. Click OK and Power up the VA
7. Run the replication job.
Defect ID

17275
Additional Information

Increasing the scratch disk on the target VA also helped with this error.

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