My Oracle Support Banner

After Database Restart Connections in the Pool Return Error: "SQLException: No More Data to Read from Socket" (Doc ID 400349.1)

Last updated on JUNE 02, 2023

Applies to:

Oracle Containers for J2EE - Version and later
Information in this document applies to any platform.


When a database is restarted, AS 10.1.2 connections in the datasource's pool return an error to the applications, and the connection is kept in the pool,

so every attempt from applications to connect to the database keeps aborting with errors.

The error reported could be one of the following:

 java.sql.SQLException: No more data to read from socket 
 java.sql.SQLException: OALL8 is in an inconsistent state.
 java.sql.SQLException: Io exception: Broken pipe


The issue documented here occurred during an application migration from AS to AS 10.1.2. 

The AS 9.0.3 application worked OK after a restart of the Database.

So this note documents how to handle this scenario in AS 10.1.2. Nevertheless, the solution here is more generic and it can also apply when working with non-oracle databases.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.