How to fix KVM Error: KVM guest high TCP retransmissions

How to fix KVM Error: KVM guest high TCP retransmissions

Error Code/Message:

KVM guest high TCP retransmissions

What causes this error:

The guest is experiencing high TCP retransmissions due to network or configuration issues.

How you can fix it:

Ensure that the TCP retransmission settings for the KVM guest are optimized.
Troubleshooting Steps:
1. Verify the TCP retransmission settings:

virsh edit guest_name

2. Check current TCP retransmissions:

netstat -s | grep retransmitted

3. Review TCP retransmission logs:

tail -f /var/log/libvirt/qemu/guest_name.log

4. Resolve any TCP retransmission issues and re-attempt guest operations.

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Tags: #kvm #guest #high #tcp #retransmissions

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