Hi, it is a know issue with some firewalls. Zen sends gratuitous arp
packages to the broadcast when cluster switches to force the ARP table to
be updated but some firewalls require a direct ICMP packet to update the
ARP table, as you reported it is your case.
We are going to develope this property 'send ping packets to the gw if the
zen switches' for future releases.
Thanks for your report.
El 01/03/2015 22:11, "Roger Sikorski" <roger.sikor...@de.rr-icecream.eu>
escribió:
> Hello Emilio,
>
>
>
> yes Juniper is the gateway. I also forced the first
>
>
>
> After the connection to the load balancer is not more reachable from the
> other location, the LB2 switched automatically to LB1.
>
>
>
> I tried then a ping from both load balancer to the Gateway. The both pings
> was continuous possible.
>
> After the pings the we got an email from our monitoring system that the
> load balancer is from the other location again accessible.
>
>
>
> Between the first e-mail that the load balancer wasn’t reachable and now
> reachable is (1 minute later after the ping) are 43 minutes.
>
>
>
> I didn’t forced the second load balancer to switch to the first load
> balancer.
>
> This was tested with the option force the second load balancer as a master.
>
>
>
> I activated now the maintenance mode and will do the tests ask you asked
> and inform you.
>
>
>
> Greetings
>
> Roger
>
>
>
> *Von:* Emilio Campos [mailto:emilio.campos.mar...@gmail.com]
> *Gesendet:* Montag, 23. Februar 2015 14:48
> *An:* zenloadbalancer-support@lists.sourceforge.net
> *Cc:* Sazzad Hussein; Jonathan Aldred
> *Betreff:* Re: [Zenloadbalancer-support] Load Balancer on other WAN side
> not accessible
>
>
>
> Hi Roger, sorry for the late response, I have been checking your logs and
> I have detected your cluster service is switching, I would require you
> confirm that you problema appears when the cluster service switches so
> could you run some test forcing the master node to maintenance?
>
>
>
> Once you confirm you lose the access to the service from juniper ( I guess
> juniper is your gw), I would require you run ping from your active zen
> server (node2) to the gw (juniper), and confirm if one you run a continuous
> ping the problem is solved..
>
>
>
>
>
>
>
> 2015-02-23 10:56 GMT+01:00 Roger Sikorski <
> roger.sikor...@de.rr-icecream.eu>:
>
> Hello Emilio,
>
>
>
> did you found something out?
>
>
>
> I shut down the second load balancer (for the cluster) and we got no more
> notification from our monitoring system that the load balancer isn’t more
> reachable.
>
> Maybe that helps you.
>
>
>
> Greetings
>
> Roger Sikorski
>
>
>
> *Von:* Roger Sikorski [mailto:roger.sikor...@de.rr-icecream.eu]
> *Gesendet:* Donnerstag, 19. Februar 2015 13:55
> *An:* zenloadbalancer-support@lists.sourceforge.net
> *Cc:* Sazzad Hussein; Jonathan Aldred
>
>
> *Betreff:* Re: [Zenloadbalancer-support] Load Balancer on other WAN side
> not accessible
>
>
>
> Hello Emilio,
>
>
>
> did you found something out?
>
>
>
> Greetings
>
> Roger
>
>
>
> *Von:* Roger Sikorski [mailto:roger.sikor...@de.rr-icecream.eu
> <roger.sikor...@de.rr-icecream.eu>]
> *Gesendet:* Montag, 16. Februar 2015 09:46
> *An:* zenloadbalancer-support@lists.sourceforge.net
> *Cc:* Jonathan Aldred
> *Betreff:* Re: [Zenloadbalancer-support] Load Balancer on other WAN side
> not accessible
>
>
>
> Hello,
>
>
>
> yes we are using a zen cluster. Cluster type is ,,LB1 or LB2” can be
> masters.
>
>
>
> Logs are directly send to you.
>
>
>
> Greetings
>
> Roger Sikorski
>
>
>
> *Von:* Emilio Campos [mailto:emilio.campos.mar...@gmail.com
> <emilio.campos.mar...@gmail.com>]
> *Gesendet:* Montag, 16. Februar 2015 09:15
> *An:* zenloadbalancer-support@lists.sourceforge.net
> *Cc:* Jonathan Aldred
> *Betreff:* Re: [Zenloadbalancer-support] Load Balancer on other WAN side
> not accessible
>
>
>
> are you working with a zen cluster? anyway could you please attach logs?
>
>
>
> /usr/local/zenloadbalancer/logs/*
>
> /var/log/messages
>
> /var/log/syslog
>
>
>
> Make a ta.gz file and feel free to send me directly.
>
>
>
> Thanks!
>
>
>
>
>
>
>
> 2015-02-13 8:53 GMT+01:00 Roger Sikorski <roger.sikor...@de.rr-icecream.eu
> >:
>
> Hello,
>
>
>
> today morning we got messages from our monitoring systems on other factory
> location that the ZenLoad Balancer isn’t more reachable.
>
>
>
> In the local network the Load Balancer was accessible.
>
>
>
> We restarted for test purposes the Juniper firewall. The access from the
> other factory location was then possible.
>
>
>
> I attached a Wireshark dump.
>
>
>
> We noticed an option in the Juniper. Maybe this causes problem?
>
> [image: cid:image001.jpg@01D04C33.5357F220]
>
>
>
> What are we wondering that the access was over the entire week possible
> and now we get from one day to the other day this problem.
>
>
>
> Were we should at best search for errors?
>
>
>
> Greetings
>
> Roger Sikorski
>
>
>
> *Roger Sikorski*
>
> *Auszubildender IT Fachinformatiker*
>
> R&R Ice Cream Deutschland GmbH
>
> Eduard Pestel Str. 15
>
> 49080 Osnabrück
>
> * Fax: **+49 541 9999 301* <%2B49%20541%209999%20301>
>
> www.rr-icecream.eu
>
> roger.sikor...@de.rr-icecream.eu
>
>
>
> Handelsregister Amtsgericht Osnabrück HRB 17067 Sitz der Gesellschaft:
> Osnabrück Ident Nr. DE 117657534 Geschäftsführer: Dr. Ibrahim Najafi, Dr.
> Gotthard Kirchner
>
> P *Before you print* think about the *ENVIRONMENT*
>
>
>
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming. The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is
> your
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a
> look and join the conversation now. http://goparallel.sourceforge.net/
> _______________________________________________
> Zenloadbalancer-support mailing list
> Zenloadbalancer-support@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
>
>
>
>
>
> --
>
> Load balancer distribution - Open Source Project
> http://www.zenloadbalancer.com
> Distribution list (subscribe):
> zenloadbalancer-support@lists.sourceforge.net
>
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
>
>
> ------------------------------------------------------------------------------
> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server
> from Actuate! Instantly Supercharge Your Business Reports and Dashboards
> with Interactivity, Sharing, Native Excel Exports, App Integration & more
> Get technology previously reserved for billion-dollar corporations, FREE
>
> http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk
> _______________________________________________
> Zenloadbalancer-support mailing list
> Zenloadbalancer-support@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
>
>
>
>
>
> --
>
> Load balancer distribution - Open Source Project
> http://www.zenloadbalancer.com
> Distribution list (subscribe):
> zenloadbalancer-support@lists.sourceforge.net
>
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
> ________________________________________________________________________
> This e-mail has been scanned for viruses by R&R Ice Cream.
> The service is powered by MessageLabs.
> ________________________________________________________________________
>
>
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming The Go Parallel Website,
> sponsored
> by Intel and developed in partnership with Slashdot Media, is your hub for
> all
> things parallel software development, from weekly thought leadership blogs
> to
> news, videos, case studies, tutorials and more. Take a look and join the
> conversation now. http://goparallel.sourceforge.net/
> _______________________________________________
> Zenloadbalancer-support mailing list
> Zenloadbalancer-support@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
>
>
------------------------------------------------------------------------------
Dive into the World of Parallel Programming The Go Parallel Website, sponsored
by Intel and developed in partnership with Slashdot Media, is your hub for all
things parallel software development, from weekly thought leadership blogs to
news, videos, case studies, tutorials and more. Take a look and join the
conversation now. http://goparallel.sourceforge.net/
_______________________________________________
Zenloadbalancer-support mailing list
Zenloadbalancer-support@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/zenloadbalancer-support
