https://bz.apache.org/bugzilla/show_bug.cgi?id=59923
Bug ID: 59923
Summary: The default value of validationInterval attribute is
too long.
Product: Tomcat Modules
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P2
Component: jdbc-pool
Assignee: dev@tomcat.apache.org
Reporter: t.bessho0...@gmail.com
The validationInterval attribute is 30 seconds by default.
In case of DB reboots, trigger some problems.
For example, the following events will be considered.
1. The connection is validated.
2. DB reboots.
3. getConnection() within 30 seconds.
4. The connection isn't validated by testOnBorrow.
5. Get the invalid connection.
And worse, the default value of fairQueue is true.
As a result, invalid connection is continued to use.
Therefore, I think the default value should be more short or "0(disable)".
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