In this post, you’ll learn about the DB2 error 0-Communication link failure: java.io.IOException and the reason why you are receiving the error message and how to fix it
How does this Error Message Looks like
0 – Communication link failure: java.io.IOException
Reason for the Error & Solution
The TCP connection underlying the JDBC Connection has been closed, possibly due to a timeout. If using Kodo’s default DataSource, connection testing can be configured via the ConnectionFactoryProperties property.