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From Christopher Schultz <ch...@christopherschultz.net>
Subject Re: Application crash after Migrate to different ESX
Date Mon, 06 Jun 2011 14:35:52 GMT
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הילה,

On 6/6/2011 9:56 AM, הילה wrote:
> I've set testonborrow, validationquery and validationinterval - and it did
> the trick. After ESX migration or just disconnect and reconnect of the
> network card, the application recovers by itself.

Note that "validationInterval" is not a valid configuration option (if
you're talking about DBCP... sorry, I can't keep track of your
configuration... are you using DBCP or Tomcat's new, semi-experimental
pool?).

If you're using DBCP, you should really read this page in it's entirety:

http://commons.apache.org/dbcp/configuration.html

If you are using Tomcat's pool, you should read the documentation that
comes with it.

Any type of "interval" setting is likely to create a background thread
that monitors the connections and tests them periodically.

Unless you have a very strict response-time metric that you are trying
to hit, I would stick with testOnBorrow="true" (along with an innocuous
validationQuery) and leave everything else alone.

- -chris
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