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From "Sergey Chugunov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-8760) TcpDiscoverySpi: validation of discovery message path on each node
Date Sat, 09 Jun 2018 10:03:00 GMT
Sergey Chugunov created IGNITE-8760:
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             Summary: TcpDiscoverySpi: validation of discovery message path on each node
                 Key: IGNITE-8760
                 URL: https://issues.apache.org/jira/browse/IGNITE-8760
             Project: Ignite
          Issue Type: Improvement
            Reporter: Sergey Chugunov


As each discovery message goes across the ring it can record all nodes it was handled on.

It gives discovery protocol an opportunity to set up a constant monitoring of cluster topology:
each node on receiving discovery message will compare path recorded by the message and its
local picture of current topology. On detecting any discrepancy node may at least print warning
or take other actions.

Path recording may be expensive in terms of network traffic so it is better to add this logic
to specific types of discovery messages: all topology changing messages and (may be) heartbeats.



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