IDP 3.4.4 stops processing authentications

John C. Pfeifer pfeifer at
Tue Sep 10 08:58:58 EDT 2019

Absolutely.  When we first switched to 3.x, the garbage collection behavior was horrific esp. with respect to the reload of the InCommon metadata aggregate.  Switching to G1 had a huge impact (beneficial). More recently, we switched the InCommon metadata config from the aggregate to MDQ which also has had a tremendously beneficial impact on memory usage and garbage collection behavior.

> On Sep 10, 2019, at 3:28 AM, Miguel Salinas Vivancos <msalinas at> wrote:
> Do you recommend of changing to G1GC? I know it will be the default in Java 9...

John Pfeifer
Division of Information Technology
University of Maryland, College Park

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