is depends broken?
list Troy Adams
I have the following in my 'hosts.cfg': 209.85.225.105 google.com # http://www.google.com XXX.XXX.XXX.XXX www # trace http://www depends=(http:google.com/http) Yesterday, the web server (www) was down for 55 minutes. The Xymon record shows that: 1. google.com/http was green for that whole period 2. www/http bounced between red and clear for the whole period (with a bounce frequency of 5 minutes) 3. My other Xymon server (configured without "depends") shows a solid 55 minute outage (red for 55 minutes). This behavior is not what I expect from reading the man page. I tried to reproduce this problem with "depends" on my test Xymon server and was able to confirm the same behavior. Is there a workaround to this problem with my Xymon 4.3.10 server? cheers, Troy -- This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed. ---
list Galen Johnson
#2 sounds a lot like "flapping". Does "depends" honor flapping or would a flapping server still show red? Or am I not understanding the situation? =G=
▸
From: Xymon [xymon-bounces at xymon.com] on behalf of Troy Adams [user-81e3256385bc@xymon.invalid] Sent: Monday, August 19, 2013 5:34 PM To: xymon Subject: [Xymon] is depends broken? I have the following in my 'hosts.cfg': 209.85.225.105 google.com # http://www.google.com XXX.XXX.XXX.XXX www # trace http://www depends=(http:google.com/http) Yesterday, the web server (www) was down for 55 minutes. The Xymon record shows that: 1. google.com/http was green for that whole period 2. www/http bounced between red and clear for the whole period (with a bounce frequency of 5 minutes) 3. My other Xymon server (configured without "depends") shows a solid 55 minute outage (red for 55 minutes). This behavior is not what I expect from reading the man page. I tried to reproduce this problem with "depends" on my test Xymon server and was able to confirm the same behavior. Is there a workaround to this problem with my Xymon 4.3.10 server? cheers, Troy This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed.
list Josh Luthman
Use route:other.host.com Josh Luthman Office: XXX-XXX-XXXX Direct: XXX-XXX-XXXX XXXX Wayne St Suite XXXX Troy, OH XXXXX
▸
On Aug 19, 2013 10:31 PM, "Galen Johnson" <user-87f955643e3d@xymon.invalid> wrote:
#2 sounds a lot like "flapping". Does "depends" honor flapping or would a flapping server still show red? Or am I not understanding the situation? =G= *From:* Xymon [xymon-bounces at xymon.com] on behalf of Troy Adams [ user-81e3256385bc@xymon.invalid] *Sent:* Monday, August 19, 2013 5:34 PM *To:* xymon *Subject:* [Xymon] is depends broken? I have the following in my 'hosts.cfg': 209.85.225.105 google.com # http://www.google.com
XXX.XXX.XXX.XXX www # trace http://www depends=(http: google.com/http)
▸
Yesterday, the web server (www) was down for 55 minutes. The Xymon record
shows that:
1. google.com/http was green for that whole period
2. www/http bounced between red and clear for the whole period (with a
bounce frequency of 5 minutes)
3. My other Xymon server (configured without "depends") shows a solid
55 minute outage (red for 55 minutes).
This behavior is not what I expect from reading the man page.
I tried to reproduce this problem with "depends" on my test Xymon server
and was able to confirm the same behavior.
Is there a workaround to this problem with my Xymon 4.3.10 server?
cheers,
Troy
This communication is intended for the use of the recipient to whom it is
addressed, and may contain confidential, personal, and or privileged
information. Please contact us immediately if you are not the intended
recipient of this communication, and do not copy, distribute, or take
action relying on it. Any communications received in error, or subsequent
reply, should be deleted or destroyed.
list Troy Adams
Galen, I should have also stated that google was up for the entire period (no flapping). Josh, I take it, you mean replace my previous configuration where it said: depends=(http: google.com/http ) and make it: route:google.com so it ends up as: XXX.XXX.XXX.XXX www # trace http://www route:google.com I tried that and when I block both hosts google/icmp,http and www:http with iptables they both show red, I was expecting www:http to show clear to get the same functionality as "depends". Any thoughts? cheers, Troy ----- Original Message ----- From: "Josh Luthman" <user-4c45a83f15cb@xymon.invalid> To: "Galen Johnson" <user-87f955643e3d@xymon.invalid> Cc: xymon at xymon.com, "Troy Adams" <user-81e3256385bc@xymon.invalid> Sent: Monday, August 19, 2013 8:56:57 PM GMT -07:00 US/Canada Mountain Subject: Re: [Xymon] is depends broken? Use route: other.host.com
▸
Josh Luthman Office: XXX-XXX-XXXX Direct: XXX-XXX-XXXX XXXX Wayne St Suite XXXX Troy, OH XXXXX On Aug 19, 2013 10:31 PM, "Galen Johnson" < user-87f955643e3d@xymon.invalid > wrote: #2 sounds a lot like "flapping". Does "depends" honor flapping or would a flapping server still show red? Or am I not understanding the situation? =G= From: Xymon [ xymon-bounces at xymon.com ] on behalf of Troy Adams [ user-81e3256385bc@xymon.invalid ] Sent: Monday, August 19, 2013 5:34 PM To: xymon Subject: [Xymon] is depends broken? I have the following in my 'hosts.cfg': 209.85.225.105 google.com # http://www.google.com XXX.XXX.XXX.XXX www # trace http://www depends=(http: google.com/http ) Yesterday, the web server (www) was down for 55 minutes. The Xymon record shows that: 1. google.com/http was green for that whole period 2. www/http bounced between red and clear for the whole period (with a bounce frequency of 5 minutes) 3. My other Xymon server (configured without "depends") shows a solid 55 minute outage (red for 55 minutes). This behavior is not what I expect from reading the man page. I tried to reproduce this problem with "depends" on my test Xymon server and was able to confirm the same behavior. Is there a workaround to this problem with my Xymon 4.3.10 server? cheers, Troy This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed.
list Troy Adams
So I did a little testing with "route:". The behavior I see when I test is (where "child" is the machine depended on the "parent"): By default (no route directive used here), when the child:conn and the child:http both go red then the child:http is turned clear because of innate dependency on conn. With the route directive in place, when the parent:conn, child:conn and the child:http all go red then the child:http is turned clear (same as above) but the child:conn bounces between yellow and red (with an approximate cycle of 1:30 red and 30s yellow). Next when I bring up the parent:conn (restore ping function), the child:conn goes red and stays red. I guess the bottom line is, I can't get "route" or "depends" to do what I want or even what the manual says they do. Looks to me like something is broken real bad. I am using Xymon 4.3.10. Anybody have a clue what to do? cheers, Troy ----- Original Message ----- From: "Troy Adams" <user-81e3256385bc@xymon.invalid> To: "Josh Luthman" <user-4c45a83f15cb@xymon.invalid> Cc: xymon at xymon.com Sent: Thursday, August 22, 2013 11:26:22 AM GMT -07:00 US/Canada Mountain Subject: Re: [Xymon] is depends broken?
▸
Galen, I should have also stated that google was up for the entire period (no flapping). Josh, I take it, you mean replace my previous configuration where it said: depends=(http: google.com/http ) and make it: route:google.com so it ends up as: XXX.XXX.XXX.XXX www # trace http://www route:google.com I tried that and when I block both hosts google/icmp,http and www:http with iptables they both show red, I was expecting www:http to show clear to get the same functionality as "depends". Any thoughts? cheers, Troy ----- Original Message ----- From: "Josh Luthman" <user-4c45a83f15cb@xymon.invalid> To: "Galen Johnson" <user-87f955643e3d@xymon.invalid> Cc: xymon at xymon.com, "Troy Adams" <user-81e3256385bc@xymon.invalid> Sent: Monday, August 19, 2013 8:56:57 PM GMT -07:00 US/Canada Mountain Subject: Re: [Xymon] is depends broken? Use route: other.host.com Josh Luthman Office: XXX-XXX-XXXX Direct: XXX-XXX-XXXX XXXX Wayne St Suite XXXX Troy, OH XXXXX On Aug 19, 2013 10:31 PM, "Galen Johnson" < user-87f955643e3d@xymon.invalid > wrote: #2 sounds a lot like "flapping". Does "depends" honor flapping or would a flapping server still show red? Or am I not understanding the situation? =G= From: Xymon [ xymon-bounces at xymon.com ] on behalf of Troy Adams [ user-81e3256385bc@xymon.invalid ] Sent: Monday, August 19, 2013 5:34 PM To: xymon Subject: [Xymon] is depends broken? I have the following in my 'hosts.cfg': 209.85.225.105 google.com # http://www.google.com XXX.XXX.XXX.XXX www # trace http://www depends=(http: google.com/http ) Yesterday, the web server (www) was down for 55 minutes. The Xymon record shows that: 1. google.com/http was green for that whole period 2. www/http bounced between red and clear for the whole period (with a bounce frequency of 5 minutes) 3. My other Xymon server (configured without "depends") shows a solid 55 minute outage (red for 55 minutes). This behavior is not what I expect from reading the man page. I tried to reproduce this problem with "depends" on my test Xymon server and was able to confirm the same behavior. Is there a workaround to this problem with my Xymon 4.3.10 server? cheers, Troy This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed.
list Cami Sardinha
Hey.. DEPENDS I haven't managed to get working properly, even with copy/paste examples that have been posted to the list in the past (even for conn tests!). I'm looking forward to the overhaull of DEPENDS and ROUTE so that it no longer relies on net-tests and moves things into the core (to include combo tests) but least i heard there was no ETA on that. Regards, Cami
▸
On Wed, Sep 11, 2013 at 8:58 PM, Troy Adams <user-81e3256385bc@xymon.invalid> wrote:
So I did a little testing with "route:". The behavior I see when I test is (where "child" is the machine depended on the "parent"): By default (no route directive used here), when the child:conn and the child:http both go red then the child:http is turned clear because of innate dependency on conn. With the route directive in place, when the parent:conn, child:conn and the child:http all go red then the child:http is turned clear (same as above) but the child:conn bounces between yellow and red (with an approximate cycle of 1:30 red and 30s yellow). Next when I bring up the parent:conn (restore ping function), the child:conn goes red and stays red. I guess the bottom line is, I can't get "route" or "depends" to do what I want or even what the manual says they do. Looks to me like something is broken real bad. I am using Xymon 4.3.10. Anybody have a clue what to do? cheers, Troy ----- Original Message ----- From: "Troy Adams" <user-81e3256385bc@xymon.invalid> To: "Josh Luthman" <user-4c45a83f15cb@xymon.invalid> Cc: xymon at xymon.com Sent: Thursday, August 22, 2013 11:26:22 AM GMT -07:00 US/Canada Mountain Subject: Re: [Xymon] is depends broken? Galen, I should have also stated that google was up for the entire period (no flapping). Josh, I take it, you mean replace my previous configuration where it said:
depends=(http:google.com/http)
▸
and make it: route:google.com so it ends up as: XXX.XXX.XXX.XXX www # trace http://www route:google.com I tried that and when I block both hosts google/icmp,http and www:http with iptables they both show red, I was expecting www:http to show clear to get the same functionality as "depends". Any thoughts? cheers, Troy ----- Original Message ----- From: "Josh Luthman" <user-4c45a83f15cb@xymon.invalid> To: "Galen Johnson" <user-87f955643e3d@xymon.invalid> Cc: xymon at xymon.com, "Troy Adams" <user-81e3256385bc@xymon.invalid> Sent: Monday, August 19, 2013 8:56:57 PM GMT -07:00 US/Canada Mountain Subject: Re: [Xymon] is depends broken? Use route:other.host.com Josh Luthman Office: XXX-XXX-XXXX Direct: XXX-XXX-XXXX XXXX Wayne St Suite XXXX Troy, OH XXXXX On Aug 19, 2013 10:31 PM, "Galen Johnson" <user-87f955643e3d@xymon.invalid> wrote:#2 sounds a lot like "flapping". Does "depends" honor flapping or would a flapping server still show red? Or am I not understanding the situation? =G= *From:* Xymon [xymon-bounces at xymon.com] on behalf of Troy Adams [ user-81e3256385bc@xymon.invalid] *Sent:* Monday, August 19, 2013 5:34 PM *To:* xymon *Subject:* [Xymon] is depends broken? I have the following in my 'hosts.cfg': 209.85.225.105 google.com # http://www.google.com XXX.XXX.XXX.XXX www # trace http://www depends=(http: google.com/http) Yesterday, the web server (www) was down for 55 minutes. The Xymon record shows that: 1. google.com/http was green for that whole period 2. www/http bounced between red and clear for the whole period (with a bounce frequency of 5 minutes) 3. My other Xymon server (configured without "depends") shows a solid 55 minute outage (red for 55 minutes). This behavior is not what I expect from reading the man page. I tried to reproduce this problem with "depends" on my test Xymon server and was able to confirm the same behavior. Is there a workaround to this problem with my Xymon 4.3.10 server? cheers, Troy This communication is intended for the use of the recipient to whom it is addressed, and may contain confidential, personal, and or privileged information. Please contact us immediately if you are not the intended recipient of this communication, and do not copy, distribute, or take action relying on it. Any communications received in error, or subsequent reply, should be deleted or destroyed.