Traffic Server
  1. Traffic Server
  2. TS-156

Enabling serve_stale_for crashes traffic_server with SRV records enabled crashes

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Critical Critical
    • Resolution: Invalid
    • Affects Version/s: None
    • Fix Version/s: 2.1.2
    • Component/s: None
    • Labels:
      None

      Description

      (This is moved from Y! Bugzilla ticket 2561190, originally posted by Leif Hedstrom on 2009-02-25):

      We've been testing 1.17.13 on a production box, and activated the new features that we've been adding. This causes TS
      to crash fairly frequently, and I've tracked this down to this configuration:

      CONFIG proxy.config.hostdb.serve_stale_for INT 60

      setting this back to 0 (which disabled this new feature) eliminates the crashes.

      Comment #5 (Leif Hedstrom):

      So, it seems this only triggers IF the SRV records feature is enabled as well. I.e.

      CONFIG proxy.config.srv_enabled INT 1

      I've examined the code for the serve_stale_for feature, and it seems good. However, the SRV records feature is all
      brand new code, and rather untested.

      Comment #4 (Leif Hedstrom):

      This is a more likely stack trace (thanks Bryan for reminding me about our fantastic stack trace feature that logs the
      traces into traffic.log):

      0x083BCD02:bin/traffic_server:ink_atomiclist_push
      0x082D158E:bin/traffic_server:probe(ProxyMutex*, INK_MD5&, char*, int, int, int, void*, bool, bool)
      0x082D1597:bin/traffic_server:probe(ProxyMutex*, INK_MD5&, char*, int, int, int, void*, bool, bool)
      0x081C9DD3:bin/traffic_server:HttpTransact::delete_srv_entry(HttpTransact::State*, int)
      0x081CB363:bin/traffic_server:HttpTransact::handle_response_from_server(HttpTransact::State*)
      0x081CB9CE:bin/traffic_server:HttpTransact::HandleResponse(HttpTransact::State*)
      0x081DFF7B:bin/traffic_server:HttpSM::call_transact_and_set_next_state(void (HttpTransact::State*))
      0x081E3D57:bin/traffic_server:HttpSM::handle_server_setup_error(int, void*)
      0x081E721A:bin/traffic_server:HttpSM::state_read_server_response_header(int, void*)
      0x081E69A2:bin/traffic_server:HttpSM::main_handler(int, void*)
      0x0832B69F:bin/traffic_server:UnixNetVConnection::net_read_io(NetHandler*, EThread*)
      0x08330AB5:bin/traffic_server:NetHandler::mainNetEvent(int, Event*)
      0x0834B9C2:bin/traffic_server:EThread::process_event(Event*, int)
      0x0834CAFE:bin/traffic_server:EThread::execute()
      0x0812CB83:bin/traffic_server:main
      0x00418DE3:/lib/tls/libc.so.6:__libc_start_main
      0x080D6CA1:bin/traffic_server:__gxx_personality_v0
      0x080D6CA1:bin/traffic_server:__gxx_personality_v0
      0x080D6CA1:bin/traffic_server:__gxx_personality_v0
      0x080D6CA1:bin/traffic_server:__gxx_personality_v0

        Activity

          People

          • Assignee:
            Unassigned
            Reporter:
            Leif Hedstrom
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            Dates

            • Created:
              Updated:
              Resolved:

              Development