JDBC Thin 11.2.0.1 Application Gets Protocol Violation Error When Running Large Queries due to TNS: Bad Packet Type
(Doc ID 1096385.1)
Last updated on AUGUST 09, 2023
Applies to:
JDBC - Version 10.2.0 and laterInformation in this document applies to any platform.
Symptoms
A JDBC thin application fails to execute a large query.
However, when running a smaller but similar query with the same client application and database, it succeeds.
The client error is: java.sql.SQLException: Protocol violation
Exception in thread "main" java.sql.SQLException: Protocol violation
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:521)
at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:194)
at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:853)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1145)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1267)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1469)
at oracle.jdbc.driver.OracleStatementWrapper.executeQuery(OracleStatementWrapper.java:389)
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:450)
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:186)
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:521)
at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:194)
at oracle.jdbc.driver.T4CStatement.executeForDescribe(T4CStatement.java:853)
at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1145)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1267)
at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:1469)
at oracle.jdbc.driver.OracleStatementWrapper.executeQuery(OracleStatementWrapper.java:389)
The server-side sqlnet.log reports a TNS: Bad Packet
Changes
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |