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rec: Adding NTA doesn't invalidate existing cache #6949

giganteous opened this Issue Sep 10, 2018 · 1 comment


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giganteous commented Sep 10, 2018

  • Program: Recursor
  • Issue type: Feature request

Short description

Call a cleanup hook when the NTA's change using:

  • rec_control add_nta
  • rec_control reload-lua-config


Currently I need to know what domains I added to the config when reloading the lua config, or just bluntly call a loop around all my negative anchored domains.


Chat from IRC:

09:16|     kaisan: note, interactions with adding NTA and invalidating existing cache hasn't been optimized it seems.
09:18|     Habbie: ah
09:24|     lieter: we don't clean the cache for that name?
09:24|     Habbie:   broadcastAccFunction<uint64_t>(boost::bind(pleaseWipePacketCache, who, true));
09:24|     Habbie: but no pleaseWipeCache
09:30|     Habbie: also no automatic dnsdist-side cleanup, i suppose

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rgacogne commented Sep 10, 2018

It looks like we only clear the packet cache but not the record cache when adding or removing (N)TA indeed.

@rgacogne rgacogne added this to the rec-4.1.x milestone Sep 10, 2018

@phonedph1 phonedph1 referenced this issue Sep 10, 2018


rec: clear all caches on (N)TA changes. #6951

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