Hi Nick, what is the exact problem, the connection is refused from the VIP
service?
Can you see the connections to the farm are established/syn/closed on the
farms panel?
Have you tried to connect to the VIP service from the localhost Zen LB?
Regards,
Laura.
On Mon, Feb 20, 2012 at 2:45 PM, Nick Furnell <
[email protected]> wrote:
> Hi Emilio
>
> This has just happened again. It has followed immediately after me
> changing the Sticky Client options for another farm, not sure if this is
> related..?
>
> All servers are showing GREEN in the GUI summary page, Client Sessions 173
> Active, and Active connections 550 max, 0 used, 69 last (but non showing).
> The interface is also GREEN, edit, no change then UP - made no difference.
>
> I can PING the virtual interface of the Farm
> I can PING from the ZLB CLI to all my real servers.
> I have tried CHECK_HTTP and the response is 'OK'
> I can also hit the 'real' servers directly from my laptop, they respond OK.
>
> Marco suggested MTU 500 - not sure what that means, I have asked him
> directly.
> Tried: PING 192.168.1.20 -s 500
>
> Here is the ZLB Log for the last 20 minutes, from just before it went off:-
>
> Mon Feb 20 13:24:39 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:40 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:40 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:41 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:42 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:43 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:45 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:46 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:47 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:48 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:24:59 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:25:01 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:25:07 2012 - * - 192.168.10.137 - admin - loading the
> TIM-Clustered Farm data
> Mon Feb 20 13:25:07 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:25:07 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 timeout'
> for TIM-Clustered farm tcp
> Mon Feb 20 13:25:07 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 servers'
> Mon Feb 20 13:25:07 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 blacklist'
> for TIM-Clustered farm
> Mon Feb 20 13:25:07 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 servers'
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - loading the
> TIM-Clustered Farm data
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - setting
> 'MaxClientTime 500 3600' for TIM-Clustered farm tcp
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running 'Stop
> write true' for TIM-Clustered farm tcp
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running 'kill 15,
> 30556
> '
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running 'Start
> write true' for TIM-Clustered farm tcp
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running
> /usr/local/zenloadbalancer/app/pen/bin/pen -S 2 -c 500 -x 500 -F
> '/usr/local/zenloadbalancer/config/TIM-Clustered_pen.cfg' -C
> 127.0.0.1:15381 192.168.1.49:80
>
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - The max number of
> clients has been modified, the farm TIM-Clustered has been restarted
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381clients_max'
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 timeout'
> for TIM-Clustered farm tcp
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 servers'
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 blacklist'
> for TIM-Clustered farm
> Mon Feb 20 13:26:46 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15381 servers'
> Mon Feb 20 13:27:19 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15185clients_max'
> Mon Feb 20 13:27:21 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15185clients_max'
> Mon Feb 20 13:27:31 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15185clients_max'
> Mon Feb 20 13:28:06 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15185clients_max'
> Mon Feb 20 13:28:10 2012 - * - 192.168.10.137 - admin - running
> '/usr/local/zenloadbalancer/app/pen/bin/penctl 127.0.0.1:15185clients_max'
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - running '/sbin/ip
> rule del from 192.168.1.46 table table_eth0'
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - running
> '/sbin/ifconfig eth0:PNagent 192.168.1.46 netmask 255.255.255.0'
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - running '/sbin/ip
> link set eth0:PNagent up'
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - Network interface
> eth0:PNagent is now UP
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - running '/sbin/ip
> rule del from 192.168.1.46 table table_eth0'
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - running '/sbin/ip
> rule add from 192.168.1.46 table table_eth0'
> Mon Feb 20 13:41:08 2012 - * - 192.168.10.137 - admin - All is ok, saved
> eth0:PNagent interface config file
>
> Any more thoughts?
> Nick
>
> >>> "Emilio Campos" <[email protected]> 20/02/2012 10:48 >>>
>
> Nick, for the next time, before restarting It could be very useful to know
> the number of active connections , the max value and used value in manage
> farm section of farm is failing:
>
> Table with header "Active connections 257 max, 0 used, 0 last "
>
> Other question, is there a firewall between your vip zlb and your
> backends? or are they in the same subnet?
>
> Regards
>
> 2012/2/20 Nick Furnell <[email protected]>
>
>> Hi Laura
>> This was a TCP farm on port 80 (today) and SMTP port (25) on Friday.
>> When the SMTP server was down, I tried Telnet from my laptop direct to
>> the real servers (ok) and via ZLB address (nothing). I didn't try directly
>> from the ZLB CLI
>> Thanks
>> Nick
>>
>> >>> "Laura Garcia" <[email protected]> 20/02/2012 08:44 >>>
>>
>> Has been detected in tcp or http farms?
>>
>> El 20/02/2012 9:12, "Nick Furnell" <[email protected]>
>> escribió:
>>
>> Hi Guys
>> I have found this situation twice now, once on Friday and now again
>> Monday morning. The Zen servers are fine, but they do not process any
>> traffic to the 'real' servers?
>> Real servers are ok - tested them directly
>> Both ZLB servers are ok - logged in to both of them.
>> Communication between ZLB serves looked ok.
>> Decided to push the 'Test Failover button'.... it fixed it on BOTH
>> occasions.
>> Any thoughts as to why ZLB is stopping processing?
>> Nick
>>
>>
>>
>>
>> Transform Medical Group (CS) Limited.
>> Registered in England & Wales with Company Number: 3228476
>> Registered office: 192 Altrincham Road, Manchester M22 4RZ
>> <http://www.transforminglives.co.uk>
>> Transform Medical Group(CS) is registered in England and Wales, number
>> 3228476. The registered office is at 192 Altrincham Road, Manchester, M22
>> 4RZ. The information contained in this electronic message and any
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>
> Transform Medical Group (CS) Limited.
> Registered in England & Wales with Company Number: 3228476
> Registered office: 192 Altrincham Road, Manchester M22 4RZ
> <http://www.transforminglives.co.uk>
> Transform Medical Group(CS) is registered in England and Wales, number
> 3228476. The registered office is at 192 Altrincham Road, Manchester, M22
> 4RZ. The information contained in this electronic message and any
> attachments (the "Message") is intended for one or more specific
> individuals or entities, and may be confidential, proprietary, privileged
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> please notify the sender immediately, delete this Message and do not
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> occurrences. The sender reserves the right to monitor, record and retain
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