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Per request, I've made the following modification to the patch.
On configuration file reload event:
delete : "Purged real server: ..."
restore: "Re-added real server: ..."
On status check:
delete : "Deleted real server: ..."
restore: "Added real server: ..."
So for monitoring service, one would want to monitor these strings:
"Deleted real server" and "Added real server".
[root@linux ldirectord]# diff -u ldirectord.v.1.120
ldirectord.v.1.120.patched
--- ldirectord.v.1.120 2005-10-06 14:17:38.000000000 -0700
+++ ldirectord.v.1.120.patched 2007-01-12 11:49:23.000000000 -0800
@@ -397,6 +397,7 @@
@REAL
@VIRTUAL
$HOSTNAME
+ $REREAD_CFG
$CRLF
);
@@ -412,6 +413,7 @@
$NEGOTIATETIMEOUT = 0;
$RUNPID = "/var/run/ldirectord";
$QUIESCENT = "yes";
+$REREAD_CFG = 0;
$CRLF = "\x0d\x0a";
@@ -665,6 +667,7 @@
{
@OLDVIRTUAL = @VIRTUAL;
my %OLD_INSTANCE = %LD_INSTANCE;
+ $REREAD_CFG = 1;
eval {
&read_config();
my %NEW_INSTANCE = %LD_INSTANCE;
@@ -1689,6 +1692,7 @@
}
# $ua->wait($$v{checktimeout});
}
+ if ($REREAD_CFG) { $REREAD_CFG = 0; }
if (!check_cfgfile()) {
sleep $CHECKINTERVAL;
}
@@ -2401,7 +2405,12 @@
}
else {
&system_wrapper("$IPVSADM -d $ipvsadm_args");
- &ld_log("Deleted $log_args");
+ if ($REREAD_CFG) {
+ &ld_log("Purged $log_args");
+ }
+ else {
+ &ld_log("Deleted $log_args");
+ }
}
}
@@ -2458,7 +2467,12 @@
}
else {
&system_wrapper("$IPVSADM -a $ipvsadm_args");
- &ld_log("Added $log_args (Weight set to $rwght)");
+ if ($REREAD_CFG) {
+ &ld_log("Re-added $log_args (Weight set to $rwght)");
+ }
+ else {
+ &ld_log("Added $log_args (Weight set to $rwght)");
+ }
}
}
[root@linux ldirectord]#
On 1/12/07, jarol1@xxxxxxxxx <J.Libak@xxxxxxxxxx> wrote:
Dung Nguyen wrote:
> Real servers are "Deleted" due to two reasons: 1) due reload of the
> configuration file after an update and 2) due to fail status check.
>
> For organization that monitors the log files for actual node/resource
> failure the second deletion reason is the only one they want to see.
>
> Thus to distinguish between the two I am submitting the following
> patch. It
> retains the string "Deleted real server" for the first reason.
>
> And for the second reason, the string is modidifed to "Purged real
> server".
>
> For organization that monitors the ldirectord log files, they can
> watch for
> the string "Purged real server" and take appropriate action.
>
> Note: The patch I am submitting is for version 1.120, the official
> version
> that my organization is using. It can easily be extracted and applied
to
> the latest version.
>
> -Dung
>
>
> [root@linux ldirectord]# diff -u ldirectord.v.1.120
> ldirectord.v.1.120.patched --- ldirectord.v.1.120 2005-10-06 14:17:
> 38.000000000 -0700
> +++ ldirectord.v.1.120.patched 2007-01-11 09:22:53.000000000 -0800
> @@ -397,6 +397,7 @@
> @REAL
> @VIRTUAL
> $HOSTNAME
> + $REREAD_CFG
>
> $CRLF
> );
> @@ -412,6 +413,7 @@
> $NEGOTIATETIMEOUT = 0;
> $RUNPID = "/var/run/ldirectord";
> $QUIESCENT = "yes";
> +$REREAD_CFG = 0;
>
> $CRLF = "\x0d\x0a";
>
> @@ -665,6 +667,7 @@
> {
> @OLDVIRTUAL = @VIRTUAL;
> my %OLD_INSTANCE = %LD_INSTANCE;
> + $REREAD_CFG = 1;
> eval {
> &read_config();
> my %NEW_INSTANCE = %LD_INSTANCE;
> @@ -688,6 +691,7 @@
> %LD_INSTANCE = %OLD_INSTANCE;
> }
> undef @OLDVIRTUAL;
> + $REREAD_CFG = 0;
> }
>
>
> @@ -2401,7 +2405,12 @@
> }
> else {
> &system_wrapper("$IPVSADM -d $ipvsadm_args");
> - &ld_log("Deleted $log_args");
> + if ($REREAD_CFG) {
> + &ld_log("Purged $log_args");
> + }
> + else {
> + &ld_log("Deleted $log_args");
> + }
> }
> }
>
> [root@linux ldirectord]#
> _______________________________________________
> LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> or go to http://www.in-addr.de/mailman/listinfo/lvs-users
>
Perhaps you could also write a patch for distinguishing between adding a
new server because it became online or because reload was triggered and
new real server was defined.
Jaro
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