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Roman Puchkovskiy updated IGNITE-20852: --------------------------------------- Summary: Connection attempt clinches may cause connection failure (was: Connection attempt clinches may case connection failure) > Connection attempt clinches may cause connection failure > -------------------------------------------------------- > > Key: IGNITE-20852 > URL: https://issues.apache.org/jira/browse/IGNITE-20852 > Project: Ignite > Issue Type: Bug > Reporter: Roman Puchkovskiy > Assignee: Roman Puchkovskiy > Priority: Major > Labels: ignite-3 > Fix For: 3.0.0-beta2 > > > A clinch is a situation when two nodes (A and B) try to establish logical > connections to each other at the same time. Only one of the connections can > remain, so another one is aborted. When such an abortion happens, the client > that initiated the aborted physical connection must be transparently switched > to the connection opened 'from the other side'. > Instead, in most of the clinches, MessagingService gets an exception as a > result of the clinch resolution on one of the sides. We must avoid this. > Another problem is that the clinch resulution protocol sometimes kills an > 'almost established connection' (or even a fully estabished connection) [that > has managed to aquire recovery descriptors on both sides] just because > another connection (that has just failed to aquire first recovery descriptor) > is preferred by the tie-breaker. The tie-breaker must only be used in true > clinch situations (each of the competitors have 1 descriptor aquired). -- This message was sent by Atlassian Jira (v8.20.10#820010)