Chapril/xmpp.chapril.org-ejabberd
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Fix s2s_dns_timeout issues

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This commit is contained in:
Evgeniy Khramtsov 2017-02-20 10:42:16 +03:00
parent a664d6389e
commit 9426c67302
2 changed files with 14 additions and 3 deletions
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2
src/ejabberd_s2s_out.erl
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@ -404,7 +404,7 @@ transform_options({s2s_dns_options, S2SDNSOpts}, AllOpts) ->
transform_options({Opt, T}, Opts)
when Opt == outgoing_s2s_timeout; Opt == s2s_dns_timeout ->
maybe_report_huge_timeout(Opt, T),
[{outgoing_s2s_timeout, T}|Opts];
[{Opt, T}|Opts];
transform_options(Opt, Opts) ->
[Opt|Opts].

15
src/xmpp_stream_out.erl
View File

@ -886,9 +886,20 @@ a_lookup([], _State, Err) ->
a_lookup(_Host, _Port, _Family, _Timeout, Retries) when Retries < 1 ->
{error, timeout};
a_lookup(Host, Port, Family, Timeout, Retries) ->
Start = p1_time_compat:monotonic_time(milli_seconds),
case inet:gethostbyname(Host, Family, Timeout) of
{error, timeout} ->
a_lookup(Host, Port, Family, Timeout, Retries - 1);
{error, nxdomain} = Err ->
%% inet:gethostbyname/3 doesn't return {error, timeout},
%% so we should check if 'nxdomain' is in fact a result
%% of a timeout.
%% We also cannot use inet_res:gethostbyname/3 because
%% it ignores DNS configuration settings (/etc/hosts, etc)
End = p1_time_compat:monotonic_time(milli_seconds),
if (End - Start) >= Timeout ->
a_lookup(Host, Port, Family, Timeout, Retries - 1);
true ->
Err
end;
{error, _} = Err ->
Err;
{ok, HostEntry} ->