handle Invalid transaction status on released connection

How to handle server down unexpectly?
Test system is two nodes with haproxy+keepalived on VBox.
Testscript is write 10k values on 10 workers.
When terminal machine is down
```
Invalid transaction status on released connection: 1
Invalid transaction status on released connection: 1
Invalid transaction status on released connection: 1
Invalid transaction status on released connection: 1
Invalid transaction status on released connection: 1
Invalid transaction status on released connection: 1

```
How i can handle it?

No source file or test is named. Start by reproducing the two-node HAProxy and keepalived setup described in the report, with 10 workers writing 10k values while a terminal machine goes down, then trace where the released connection reports transaction status 1. Done should be a documented and tested handling for this failure case.

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