Does JNDI cache physical IP address on ldap lookups? And How to stop it?

We are using Oracle's 11.1.0.6 thin jdbc driver using the 'ldap lookup' syntax for database connect string lookups. The ldap server we specify is a DNS alias pointing to a hardware server load balancer, which returns different IP addresses based on load and current availability. During maintenance, we will remove a server from the load balancing rotation, but applications will continue to try connecting to this physical IP address even though DNS is no longer serving it up as a valid address. This causes continuous application failures until either the server is brought back up or the application is bounced. Only the application needs to be bounced, not the websphere or the physical server, so the caching is not being done at the server level.
We've used the tracing capabilities in the 11g jdbc driver to trace the fact that Oracle is passing in thd DNS alias name and not an IP address to the JNDI interface, so it appears the caching is occurring at the JNDI level. Unfortunately, tracing is not detailed enough to show exactly what JNDI calls are being made.
Is there any JNDI attributes that can be set to stop JNDI from caching this IP address and force it to re-evalute the new DNS lookup at each invocation?
We already know Oracle's jdbc thin driver supports specifying secondary failover ldap lookup strings, but this IP address is also getting cached, so while this will reduce the frequency of errors, it won't eliminate the problem, especially if a server is removed from the load balancing rotation permanently.

- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on the router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
Do you have this problem with other networks/routers/access points? If not then that points to a problem with your network.

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[email protected]
[email protected]
…support phone number call +1 (877) 206-2092.
Global Phone Support
We have expanded English-language publisher phone support. To make contacting the iBookstore support even easier, new local phone numbers are now available for Australia, France, Germany, Italy, Netherlands, Spain, and the U.K. Support is available Monday to Friday, from 7 a.m. to 5 p.m. (PT).
Country
Phone Number
Australia
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Netherlands
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Spain
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Does JNDI cache physical IP address on ldap lookups? And How to stop it?

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