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Tomcat hangs if C3P0 can't get a database connection

原文 2013-05-20 07:29:40 4 1 java/ hibernate/ tomcat/ c3p0

I've an application that uses Spring+Hibernate+C3P0 as the connection pool. If I start the application and the database is down, Tomcat hangs for a long log time withouth giving any feedback. Is there some property that I can set to avoid this? For example, if after 30 seconds it can't get a connection, throw a connection timeout exception.

1 answers

By default, it should take about 30 seconds before c3p0 signals a failure if it cannot acquire a Connection. You can control the length of time by modifying either the number of attempts c3p0 makes at the database or the interval between attempts.

See c3p0.acquireRetryAttempts and c3p0.acquireRetryDelay .

If you set c3p0.acquireRetryAttempts to one, c3p0 won't retry and connection attempts will fail retry immediately.

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Tomcat hangs if C3P0 can't get a database connection

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solution1 2 2013-05-20 08:40:17

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2 2013-05-20 08:40:17