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On Tue, Jun 01, 2010 at 11:24:20AM +0200, Rob de Wit wrote:
>
> Hi all,
>
> We've been using ldirectord for years now and because I wanted to
> use the 'checktype=external' option, we've upgraded heartbeat and
> it's accompanying software.
>
> We've never had problems untill the upgrade: every now and then
> ldirectord just quits. I've run it in debug mode and this is what
> I get:
>
> DEBUG2: check_http: http://10.0.10.1:80/nagios.php is up
> DEBUG2: Checking negotiate: real
> server=negotiate:http:tcp:10.0.10.2:80:XXXX.XX::75:gate:\/nagios\.php:OK
> (virtual=tcp:XX.XX.XX.XX:80)
> DEBUG2: check_http: url="http://10.0.10.2:80/nagios.php";
> virtualhost="XXXX.XX"
> LWP::UserAgent::new: ()
> DEBUG2: Starting Check
> DEBUG2: Starting HTTP/HTTPS
> LWP::UserAgent::request: ()
> LWP::UserAgent::send_request: GET http://10.0.10.2:80/nagios.php
> LWP::UserAgent::_need_proxy: Not proxied
> LWP::Protocol::http::request: ()
> LWP::Protocol::collect: read 16 bytes
> Can't call method "is_success" on an undefined value at
> /usr/sbin/ldirectord line 2759.
> failure
>
> I'm no perl expert, but looking at the code, it seems to be
> unhappily surprised by an undefined response from $ua->request.
>
> Why would that happen?
> How can I stop ldirectord from crashing on it?
>
> ldirectord --version => Linux Director v1.186-ha
Hi Rob,
What I suspect is happening is that $res is not being set sometimes,
most likely because of a timeout. Could you try the following patch
to see if it helps? You should be able to apply it to your
ldirectord script.
diff -r 7d0189d5dae8 ldirectord/ldirectord.in
--- a/ldirectord/ldirectord.in Mon Jun 07 15:13:25 2010 +0900
+++ b/ldirectord/ldirectord.in Mon Jun 07 15:39:05 2010 +0900
@@ -2746,6 +2746,11 @@
alarm 0; # Cancel the alarm
};
+ if (not defined $res) {
+ &ld_debug(2, "check_http: Timeout?");
+ goto down;
+ }
+
if ($$v{service} eq "https") {
&ld_debug(2, "SSL-Cipher: " .
$res->header('Client-SSL-Cipher'));
@@ -2767,6 +2772,7 @@
service_set($v, $r, "down", {do_log => 1}, $log_message);
&ld_debug(3, "Headers " . $res->headers->as_string);
+down:
&ld_debug(2, "check_http: $$r{url} is down\n");
return $SERVICE_DOWN;
}
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