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Article:
  Two Servlet Filters Every Web Application Should Have
Subject:   GZip Filter, IBM WAS 5 -- Cannot set header. Response already committed
Date:   2004-02-13 14:24:31
From:   twinfeats
Response to: GZip Filter, IBM WAS 5 -- Cannot set header. Response already committed

Hi George, I saw this same warning on WAS 5 seemingly caused by one jsp forwarding to another, or in my case I had the filter turned on for both .jsp and servlets - I saw this warning when my servlet forwarded to a jsp. Since my webapp is a MVC type I really only have 1 servlet and it handles 99.9% of all requests, so I just turned the filter off for .jsp files and it went away. Well, mostly - I still see it sporadically when running under heavy load.


Not sure if that helps, but good luck!

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  • GZip Filter, IBM WAS 5 -- Cannot set header. Response already committed
    2004-02-23 10:08:18  joyge [View]

    Thanks twinfeats, thanks for your suggestion. Unfortunately we are not using a true MVC design. Our design is more "page-centric", therefore your suggestion(which would be perfect if we had STRUTS) isn't going to solve our problem.

    We do in fact require page forwarding, which seems to be the root of the problem.

    It seems to me that the best solution is to address this issue directly with IBM. I will certainly pass on any helpful information that I receive to the group.

    Thanks again,
    - George Joy

    • GZip Filter, IBM WAS 5 -- Cannot set header. Response already committed
      2004-04-08 08:26:09  manivenkatachalam [View]

      Hi twinfeat,

      I am getting the same error and my architecture is MVC1.
      I saw the response for this problem

      " Hi George, I saw this same warning on WAS 5 seemingly caused by one jsp forwarding to another, or in my case I had the filter turned on for both .jsp and servlets - I saw this warning when my servlet forwarded to a jsp. Since my webapp is a MVC type I really only have 1 servlet and it handles 99.9% of all requests, so I just turned the filter off for .jsp files and it went away. Well, mostly - I still see it sporadically when running under heavy load."


      I want to know how to turn the filter off for .jsp. Please help me on this and possible some sample code to do this. Please note that i am using struts.

      Thanks
      Mani