Intermittent Connection Errors ORA-17002 Using JDBC And SQL*Plus Client While Connecting To RAC
(Doc ID 399136.1)
Last updated on AUGUST 09, 2023
Applies to:
Oracle Net Services - Version 10.2.0.3.0 and laterJDBC - Version 10.1.0.2 and later
Information in this document applies to any platform.
Symptoms
Intermittent failures to connect JDBC/thin to a RAC database with error:
IOException: The network adapter could not establish the connection. ( ORA-17002)
Connection string is
Connection to individual nodes always works:
jdbc:oracle:thin:@<IP ADDRESS NODE 1>:<PORT>:<SID1>
Or this:
jdbc:oracle:thin:@<IP ADDRESS NODE 2>:<PORT>:<SID2>
Changes
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |