[prev in list] [next in list] [prev in thread] [next in thread] 

List:       keepalived-devel
Subject:    [Keepalived-devel] IPVS: No such destination
From:       Ruben van der Zwan <keepalived () m0z ! net>
Date:       2006-08-31 19:18:25
Message-ID: 44F73601.1070300 () m0z ! net
[Download RAW message or body]

Hi all,

I've tried another machine today, Debian Linux with a 2.6.8 kernel.
I get the exact same error with this config:

global_defs {
   router_id lb
}

virtual_server 192.168.1.247 80 {
        delay_loop 6
        lb_algo wlc
        lb_kind DR
        protocol TCP
        real_server 192.168.1.10 80 {
                weight 1
                MISC_CHECK {
                        misc_path "/root/test.sh"
                        misc_dynamic
                }
        }
}

test.sh simply does a `exit 0` or any other number I put in the script.

The messages file:

Aug 31 20:11:25 debian Keepalived_healthcheckers: Changing weight from 1 
to 57 for active service [192.168.1.10:80] of VS [192.168.1.247:80]
Aug 31 20:11:25 debian Keepalived_healthcheckers: IPVS: No such destination

I've had the same error, on different hardware, different Linux 
distro's.. the first time I reported this was back in february.
Please let me know if somebody could take a look at this problem, if 
not, I can start looking at other LB/HA software for true 
"load"balancing. This is something I actually don't want to because 
keepalived does the rest of the job very nicely :)

Thanks for your time!
Regards,

Ruben van der Zwan

Ruben van der Zwan wrote:
> Hi developers,
>
> I still have this error. Picked it up again for another setup, but I 
> still have the "IPVS: No such destination" errors.
> Keepalived version is 1.1.12 and the kernel is Linux lb02 
> 2.6.17-gentoo-r4 on a Dell PowerEdge SC1425 server.
>
> Is there anyone who can confirm this?
> I did look at the source but my C programming skills aren't sufficient :)
>
> With kind regards,
> Ruben van der Zwan
>
>
> RupS wrote:
>   
>> Below a part of the keepalived config file.
>>
>> virtual_server 123.123.123.123 80 {
>>   delay_loop 6
>>   lb_algo wlc
>>   lb_kind DR
>>   protocol TCP
>>
>>   real_server 123.123.123.124 80 {
>>       MISC_CHECK {
>>               misc_path /tmp/check.pl
>>               misc_timeout 1
>>               misc_dynamic
>>       }
>>   }
>> }
>>
>>
>> /tmp/check.pl:
>> #!/usr/bin/perl
>>
>> exit 100;
>>
>> Every once or twice the weight gets adjusted correctly:
>> Feb  9 16:43:43 loadbalancer2 Keepalived_healthcheckers: Changing 
>> weight from 248 to 198 for inactive service [123.123.123.124:80] of VS 
>> [123.123.123.123:80]
>>
>> Most of the time the weight isn't adjusted and I see the following 
>> error in the logs:
>> Feb  9 16:44:13 loadbalancer2 Keepalived_healthcheckers: IPVS: No such 
>> destination
>>
>> It looks like keepalived is able to adjust the weight when (re)adding 
>> a server to ipvsadm, but is unable to change it?
>>
>>
>> This is not the only problem, I also get A LOT of these errors:
>> Feb  9 16:55:47 loadbalancer2 Keepalived_healthcheckers: TCP 
>> connection to [123.123.123.124:80] failed !!!
>> Feb  9 16:55:47 loadbalancer2 Keepalived_healthcheckers: Removing 
>> service [123.123.123.124:80] from VS [123.123.123.123:80]
>> Feb  9 16:55:47 loadbalancer2 Keepalived_healthcheckers: TCP 
>> connection to [123.123.123.124:80] failed !!!
>> Feb  9 16:55:47 loadbalancer2 Keepalived_healthcheckers: Removing 
>> service [123.123.123.124:80] from VS [123.123.123.123:80]
>> Feb  9 16:55:47 loadbalancer2 Keepalived_healthcheckers: TCP 
>> connection to [123.123.123.124:80] failed !!!
>> Feb  9 16:55:47 loadbalancer2 Keepalived_healthcheckers: Removing 
>> service [123.123.123.124:80] from VS [123.123.123.123:80]
>>
>> When I run wget in a loop, eg:
>> while true; do
>> wget --output-document=/dev/null http://123.123.123.124/
>> done
>>
>> I don't see a single hickup or a failing connection...
>>
>> You guys have any idea why keepalived is doing this?
>>
>> Kernel version: Linux loadbalancer2 2.6.14-gentoo-r5
>> Keepalived version: Keepalived v1.1.11 (09/06,2005)
>>
>>
>> --------------
>> Moderators: I send this message from a wrong email address first, you 
>> can ignore the message.
>>
>>
>> -------------------------------------------------------
>> This SF.net email is sponsored by: Splunk Inc. Do you grep through log 
>> files
>> for problems?  Stop!  Download the new AJAX search engine that makes
>> searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
>> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642
>> _______________________________________________
>> Keepalived-devel mailing list
>> Keepalived-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/keepalived-devel
>>
>>     
>
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
> _______________________________________________
> Keepalived-devel mailing list
> Keepalived-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/keepalived-devel
>
>   


-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Keepalived-devel mailing list
Keepalived-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/keepalived-devel
[prev in list] [next in list] [prev in thread] [next in thread]