Alexander Lapin created IGNITE-11258:
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Summary: JDBC: 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
# 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]
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