servlet: tomcat does not support trailer only #10124

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1. hypnoce

   added 15 commits that reference this issue on May 3, 2023

   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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3. hypnoce

   added a commit that references this issue on Aug 1, 2023

   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   This issue will close once commit 63bb258 is merged into the 'master' branch.

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4. hypnoce

   added a commit that references this issue on Nov 23, 2023

   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   This issue will close once commit 2eda56a is merged into the 'master' branch.

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5. sergiitk

   added this to the 1.61 milestone on Dec 5, 2023
6. sergiitk

   modified the milestones: 1.61, 1.62 on Jan 11, 2024
7. larry-safran

   modified the milestones: 1.62, Next on Feb 6, 2024
8. hypnoce

   added 2 commits that reference this issue on Jun 3, 2024

   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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9. hypnoce

   added 4 commits that reference this issue on Jun 26, 2024

   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   This issue will close once commit 033c895 is merged into the 'master' branch.

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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   servlet: force always sending end_stream in trailer frame (Fixes grpc…

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10. mvazquezrius commented on Mar 31, 2025

    

    mvazquezrius

    on Mar 31, 2025

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    Are there plans on when this will be fixed?
11. ejona86 commented on Nov 12, 2025

    

    ejona86

    on Nov 12, 2025

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    This is going to end up being closed as won't fix. In #12510 I talk about the problems with fixing Tomcat. I do agree Tomcat's behavior is valid, but it seems the only solution that would actually work is to change the clients, and there's simply not enough bandwidth to entertain that idea for the likes of Tomcat. If clients are fixed, then Tomcat's current behavior starts working, so there's really nothing to do on Tomcat in either case.

    If you really want to use Tomcat, and for some reason broken deadline handling doesn't bother you, you can use an interceptor like ForceTrailersServerInterceptor in #10125 and place it close to the application.

    Some docs will need to be added/updated to warn users, so I'm leaving this open until there's some hope a user would learn that Tomcat is unsupported before they rely on it.