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Alexander Lapin edited comment on IGNITE-11258 at 2/13/19 12:35 PM: -------------------------------------------------------------------- [~vozerov] Ready for preliminary review. Please, pay attention, that given ticket also contains changes from IGNITE-11257. was (Author: alapin): [~vozerov] Ready for preliminary review. > JDBC Thin: update connection setup logic. > ----------------------------------------- > > Key: IGNITE-11258 > URL: https://issues.apache.org/jira/browse/IGNITE-11258 > Project: Ignite > Issue Type: Task > Components: sql > Reporter: Alexander Lapin > Priority: Major > Labels: iep-23 > Time Spent: 10m > Remaining Estimate: 0h > > # On thin client startup it connects to *all* *nodes* provided by user by > client configuration. > # Upon handshake server returns its UUID to client. > # By the end of the startup procedure, client have open connections to all > available server nodes and the following mapping (*nodeMap*): [UUID => > Connection]. > Connection to all nodes helps to identify available nodes, but can lead to > significant delay, when thin client is used on a large cluster with a long IP > list provided by user. To lower this delay, asynchronous establishment of > connections can be used. > For more information see [IEP-23: Best Effort > Affinity|https://cwiki.apache.org/confluence/display/IGNITE/IEP-23%3A+Best+Effort+Affinity+for+thin+clients] -- This message was sent by Atlassian JIRA (v7.6.3#76005)