Swarm and Stop writes

My purpose is to create a cluster for a school project. I use this loader

I think i have error to connect because each time i reboot my destop, services are randomly redispatch between nodes up.

On my desktop, i have installed Aero DB and load without error all my data flow.

I use Haproxy to interact between my os and Docker. My docker config is precised in this topic

On my cluster with more memory, i up to 7 nodes and load.

The load has finish without stop writes but 2/3 of my data are in errors.

ERROR AsWriterTask     :161  - File: temp_state.csv Line: 185807Aerospike Write Error: 18
... 
ERROR AsWriterTask     :161  - File: temp_state.csv Line: 188082Aerospike Write Error: 8
...
ERROR AsWriterTask     :161  - File: temp_state.csv Line: 188082Aerospike Write Error: 9

INFO AerospikeLoad :430 - Final Statistics of importer: (Records Read = 645675, Successful Writes = 481719, Successful Primary Writes = 259136, Successful Mapping Writes = 222583, Errors = 809631(809631-Write,0-Read,0-Processing), Skipped = 0(0-NullKey,0-NoBins)