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mysql jdbc connector autoReconnect=true

What makes you think jdbc autoreconnect is needed?
Application is idle for long periods at a time?
Wait_timeout too short?
Network failure or glitches?

Some good suggestions form Mark Matthews - Bug #5020

Having encountered the problem again myself today, trying to make jdbc for mysql reconnect any terminated connections using autoreconnect=true I figured out a way to work it out from the pooling side.

Introduction to the problem:

On the mysql side wait_timeout is set to default 8hrs and any connections idle for longer than that were beomg terminated despite setting the connection string to: url=jdbc:mysql://localhost:3306/dbname?autoReconnect=true. The application was thence throwing an exception.

The solution was to introduce a ping from the pooler which for “Ibatis”, the pooler technology used …

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