review of IGNITE-5823 Need to remove CacheAtomicUpdateTimeoutException

[Sergey Dorozhkin]

Hi igniters,

Can someone please help me with review and merge PR:
https://github.com/apache/ignite/pull/2364/

Jira:
https://issues.apache.org/jira/browse/IGNITE-5823

Thank you, guys!

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*Best regards, Sergey.*