If I set 
"cacheMode" = "PARTITIONED", 
“atomicityMode” = "ATOMIC", 
"backups" = "2",
"writeSynchronizationMode" = "FULL_SYNC".

one data have 1 primary node and 2 backup node, then I put data X, the step
should be:
1) client      --> primary
2) primary   --> 2 backup
3) 2 backup --> primary
4) primary   --> client

If primary node crashed in step 2, and have sent "put request" to one of the
2 backup node, then one backup node have new value, but the other backup
have old value, and client get timeout fault.

this time the copy in 2 backup node should be not consistent, does ignite
ensure data consistency in this case under atomic mode?



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