Enabling serve_stale_for crashes traffic_server with SRV records enabled crashes
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Key: TS-156
URL: https://issues.apache.org/jira/browse/TS-156
Project: Traffic Server
Issue Type: Bug
Reporter: Leif Hedstrom
Priority: Critical
Fix For: 2.1.0
(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
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