[Bug 55662] Add a way to set an instance of java.sql.Driver directly on org.apache.tomcat.jdbc.pool.DataSource

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=55662

--- Comment #3 from Michael  ---
I had the same problems with SQL on this web page
https://detecthistory.com/best-metal-detectors/

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[Bug 55662] Add a way to set an instance of java.sql.Driver directly on org.apache.tomcat.jdbc.pool.DataSource

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=55662

--- Comment #2 from Jonathan Leech  ---
The DataSource or the ConnectionPool should also own the Driver instance,
rather than the PooledConnection object. That a new instance of the Driver is
instantiated via reflection for every Connection the pool creates is benign in
most cases and catastrophic in others (e.g. Apache Phoenix will create a set of
zookeeper connections for each instance of PhoenixDriver, which blows up
spectacularly). Standard JDBC has the DriverManager create the single instance
of the driver. Tomcat-dbcp seems to get it mostly right, although I think
Java's DriverManager may create an instance of the Driver, and each pool may
create a redundant one.

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[Bug 55662] Add a way to set an instance of java.sql.Driver directly on org.apache.tomcat.jdbc.pool.DataSource

[bugzilla]

https://bz.apache.org/bugzilla/show_bug.cgi?id=55662

Mark Thomas  changed:

   What|Removed |Added

 OS||All
Product|Tomcat 7|Tomcat Modules
  Component|Integration |jdbc-pool
Version|7.0.42  |unspecified

--- Comment #1 from Mark Thomas  ---
Correct module

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