Re: Using multiple servers

[Jeff Schmitz]

02 PM
> To: Chuck Hill <ch...@gevityinc.com <mailto:ch...@gevityinc.com>>
> Cc: Klaus Berkling <webobje...@berkling.us <mailto:webobje...@berkling.us>>, 
> WebObjects Development <webobjects-dev@lists.apple.com 
> <mailto:webobjects-dev@lists.apple.com>>
> Subject: Re: Using multiple servers
> 
> One other interesting thing is that when I add the webserver machine itself 
> as an application server host in javamonitor, the IP shown after the slash in 
> the host name column is 127.0.0.1 (see attached pic) not the actual IP 
> address of the machine  of 208.52.161.87
> 
> 
> 
>> On Dec 8, 2015, at 11:27 PM, Chuck Hill <ch...@gevityinc.com 
>> <mailto:ch...@gevityinc.com>> wrote:
>> 
>> I have not tried that either.  I have no idea if that is a real problem or 
>> why.
>> 
>> 
>> From: <webobjects-dev-bounces+chill=gevityinc@lists.apple.com 
>> <mailto:webobjects-dev-bounces+chill=gevityinc@lists.apple.com>> on 
>> behalf of Klaus Berkling <webobje...@berkling.us 
>> <mailto:webobje...@berkling.us>>
>> Date: Tuesday, December 8, 2015 at 9:16 PM
>> To: WebObjects Development <webobjects-dev@lists.apple.com 
>> <mailto:webobjects-dev@lists.apple.com>>
>> Subject: Re: Using multiple servers
>> 
>> 
>> On Dec 8, 2015, at 8:45 PM, Jeff Schmitz <jeffschm...@icloud.com 
>> <mailto:jeffschm...@icloud.com>> wrote:
>> 
>>> Thanks for checking that out, sounds plausible.  And yeah, not the best 
>>> solution, but I wanted to see if I could get it working at all and take it 
>>> from there.  I may try using IP’s for WOHost values.
>> 
>> I don't think IPs in different subnet will work ether but I haven't had a 
>> setup in that sort of environment.
>> Someone correct me... Bueller ... Bueller ...
>> 
>>> 
>>> 
>>> 
>>>> On Dec 8, 2015, at 3:11 PM, Klaus Berkling <webobje...@berkling.us 
>>>> <mailto:webobje...@berkling.us>> wrote:
>>>> 
>>>>> 
>>>>> On Dec 7, 2015, at 10:16 PM, Jeff Schmitz <jeffschm...@icloud.com 
>>>>> <mailto:jeffschm...@icloud.com>> wrote:
>>>>> 
>>>>> I believe I’ve checked everything you mention (see below) to no avail.  
>>>>> One thought I had is that the servers are running different Mac OS 
>>>>> versions.  Could the WOAdaptor compiled for El Capitan on the head 
>>>>> machine not be able to use a remote app instance running under Mt. Lion 
>>>>> on the remote machine?
>>>> 
>>>> The OS probably doesn’t matter.  Is this right:
>>>> 
>>>> netbrackets1.netbrackets.com <http://netbrackets1.netbrackets.com/> has 
>>>> address 208.52.161.87
>>>> 87.161.52.208.in-addr.arpa domain name pointer 
>>>> netbrackets1.netbrackets.com <http://netbrackets1.netbrackets.com/>.
>>>> 
>>>> netbrandeds-mini1.netbrandeds.info 
>>>> <http://netbrandeds-mini1.netbrandeds.info/> has address 208.52.189.44
>>>> 44.189.52.208.in-addr.arpa domain name pointer 
>>>> netbrandeds-mini1.netbrandeds.info 
>>>> <http://netbrandeds-mini1.netbrandeds.info/>.
>>>> 
>>>> I have a feeling the servers need to be in the same domain - Can someone 
>>>> second that?
>>>> I always put my hosts on a private network but if you have Mac minis you 
>>>> might not have that option (maybe firewire of thunderbolt network bridge?).
>>>> You don’t want to send your application traffic over a co-location network 
>>>> anyways.
>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>> On Dec 7, 2015, at 11:02 PM, Klaus Berkling <webobje...@berkling.us 
>>>>>> <mailto:webobje...@berkling.us>> wrote:
>>>>>> 
>>>>>> 
>>>>>> On Dec 6, 2015, at 9:21 PM, Jeff Schmitz <jeffschm...@icloud.com 
>>>>>> <mailto:jeffschm...@icloud.com>> wrote:
>>>>>> 
>>>>>>> I’m trying to follow the instructions at:  
>>>>>>> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530 
>>>>>>> <https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530>
>>>>>>> 
>>>>>>> I'm using one machine for a web server (e.g. Apache, womonitor) and one 
>>>>>>> for the appli

Re: Using multiple servers

[Markus Stoll, junidas GmbH]

what does the adapter say about its state (opening 
https:///cgi-bin/WebObjects/WOAdaptorInfo 
/cgi-bin/WebObjects/WOAdaptorInfo>=??
Did you activate WOAdaptor log?

Markus


> Am 09.12.2015 um 06:27 schrieb Chuck Hill <ch...@gevityinc.com>:
> 
> I have not tried that either.  I have no idea if that is a real problem or 
> why.
> 
> 
> From: <webobjects-dev-bounces+chill=gevityinc@lists.apple.com 
> <mailto:webobjects-dev-bounces+chill=gevityinc@lists.apple.com>> on 
> behalf of Klaus Berkling <webobje...@berkling.us 
> <mailto:webobje...@berkling.us>>
> Date: Tuesday, December 8, 2015 at 9:16 PM
> To: WebObjects Development <webobjects-dev@lists.apple.com 
> <mailto:webobjects-dev@lists.apple.com>>
> Subject: Re: Using multiple servers
> 
> 
> On Dec 8, 2015, at 8:45 PM, Jeff Schmitz <jeffschm...@icloud.com 
> <mailto:jeffschm...@icloud.com>> wrote:
> 
>> Thanks for checking that out, sounds plausible.  And yeah, not the best 
>> solution, but I wanted to see if I could get it working at all and take it 
>> from there.  I may try using IP’s for WOHost values.
> 
> I don't think IPs in different subnet will work ether but I haven't had a 
> setup in that sort of environment.
> Someone correct me... Bueller ... Bueller ...
> 
>> 
>> 
>> 
>>> On Dec 8, 2015, at 3:11 PM, Klaus Berkling <webobje...@berkling.us 
>>> <mailto:webobje...@berkling.us>> wrote:
>>> 
>>>> 
>>>> On Dec 7, 2015, at 10:16 PM, Jeff Schmitz <jeffschm...@icloud.com 
>>>> <mailto:jeffschm...@icloud.com>> wrote:
>>>> 
>>>> I believe I’ve checked everything you mention (see below) to no avail.  
>>>> One thought I had is that the servers are running different Mac OS 
>>>> versions.  Could the WOAdaptor compiled for El Capitan on the head machine 
>>>> not be able to use a remote app instance running under Mt. Lion on the 
>>>> remote machine?
>>> 
>>> The OS probably doesn’t matter.  Is this right:
>>> 
>>> netbrackets1.netbrackets.com <http://netbrackets1.netbrackets.com/> has 
>>> address 208.52.161.87
>>> 87.161.52.208.in-addr.arpa domain name pointer netbrackets1.netbrackets.com 
>>> <http://netbrackets1.netbrackets.com/>.
>>> 
>>> netbrandeds-mini1.netbrandeds.info 
>>> <http://netbrandeds-mini1.netbrandeds.info/> has address 208.52.189.44
>>> 44.189.52.208.in-addr.arpa domain name pointer 
>>> netbrandeds-mini1.netbrandeds.info 
>>> <http://netbrandeds-mini1.netbrandeds.info/>.
>>> 
>>> I have a feeling the servers need to be in the same domain - Can someone 
>>> second that?
>>> I always put my hosts on a private network but if you have Mac minis you 
>>> might not have that option (maybe firewire of thunderbolt network bridge?).
>>> You don’t want to send your application traffic over a co-location network 
>>> anyways.
>>> 
>>>> 
>>>> 
>>>> 
>>>>> On Dec 7, 2015, at 11:02 PM, Klaus Berkling <webobje...@berkling.us 
>>>>> <mailto:webobje...@berkling.us>> wrote:
>>>>> 
>>>>> 
>>>>> On Dec 6, 2015, at 9:21 PM, Jeff Schmitz <jeffschm...@icloud.com 
>>>>> <mailto:jeffschm...@icloud.com>> wrote:
>>>>> 
>>>>>> I’m trying to follow the instructions at:  
>>>>>> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530 
>>>>>> <https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530>
>>>>>> 
>>>>>> I'm using one machine for a web server (e.g. Apache, womonitor) and one 
>>>>>> for the application server (wotaskd, my app)
>>>>>> 
>>>>>> I’ve set the WebObjectsConfig appropriately on the webserver machine, 
>>>>>> e.g.: 
>>>>>> 
>>>>>> WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 
>>>>>> <http://www.server.com:1085,http://www2.server.com:1085> 10
>>>>>> 
>>>>>> I have added the application server host and the application to java 
>>>>>> monitor on the web server and it all looks good.
>>>>>> 
>>>>>> I start up the remote application from the webserver javamonitor, but 
>>>>>> when I try to reach the app using the webserver URL, it says application 
>>>>>&g

Re: Using multiple servers

[Klaus Berkling]

On Dec 9, 2015, at 10:02 PM, Jeff Schmitz <jeffschm...@icloud.com> wrote:

> One other interesting thing is that when I add the webserver machine itself 
> as an application server host in javamonitor, the IP shown after the slash in 
> the host name column is 127.0.0.1 (see attached pic) not the actual IP 
> address of the machine  of 208.52.161.87

Maybe that's in your /etc/hosts.

> 
> 
> 
>> On Dec 8, 2015, at 11:27 PM, Chuck Hill <ch...@gevityinc.com> wrote:
>> 
>> I have not tried that either.  I have no idea if that is a real problem or 
>> why.
>> 
>> 
>> From: <webobjects-dev-bounces+chill=gevityinc@lists.apple.com> on behalf 
>> of Klaus Berkling <webobje...@berkling.us>
>> Date: Tuesday, December 8, 2015 at 9:16 PM
>> To: WebObjects Development <webobjects-dev@lists.apple.com>
>> Subject: Re: Using multiple servers
>> 
>> 
>> On Dec 8, 2015, at 8:45 PM, Jeff Schmitz <jeffschm...@icloud.com> wrote:
>> 
>>> Thanks for checking that out, sounds plausible.  And yeah, not the best 
>>> solution, but I wanted to see if I could get it working at all and take it 
>>> from there.  I may try using IP’s for WOHost values.
>> 
>> I don't think IPs in different subnet will work ether but I haven't had a 
>> setup in that sort of environment.
>> Someone correct me... Bueller ... Bueller ...
>> 
>>> 
>>> 
>>> 
>>>> On Dec 8, 2015, at 3:11 PM, Klaus Berkling <webobje...@berkling.us> wrote:
>>>> 
>>>>> 
>>>>> On Dec 7, 2015, at 10:16 PM, Jeff Schmitz <jeffschm...@icloud.com> wrote:
>>>>> 
>>>>> I believe I’ve checked everything you mention (see below) to no avail.  
>>>>> One thought I had is that the servers are running different Mac OS 
>>>>> versions.  Could the WOAdaptor compiled for El Capitan on the head 
>>>>> machine not be able to use a remote app instance running under Mt. Lion 
>>>>> on the remote machine?
>>>> 
>>>> The OS probably doesn’t matter.  Is this right:
>>>> 
>>>> netbrackets1.netbrackets.com has address 208.52.161.87
>>>> 87.161.52.208.in-addr.arpa domain name pointer 
>>>> netbrackets1.netbrackets.com.
>>>> 
>>>> netbrandeds-mini1.netbrandeds.info has address 208.52.189.44
>>>> 44.189.52.208.in-addr.arpa domain name pointer 
>>>> netbrandeds-mini1.netbrandeds.info.
>>>> 
>>>> I have a feeling the servers need to be in the same domain - Can someone 
>>>> second that?
>>>> I always put my hosts on a private network but if you have Mac minis you 
>>>> might not have that option (maybe firewire of thunderbolt network bridge?).
>>>> You don’t want to send your application traffic over a co-location network 
>>>> anyways.
>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>>> On Dec 7, 2015, at 11:02 PM, Klaus Berkling <webobje...@berkling.us> 
>>>>>> wrote:
>>>>>> 
>>>>>> 
>>>>>> On Dec 6, 2015, at 9:21 PM, Jeff Schmitz <jeffschm...@icloud.com> wrote:
>>>>>> 
>>>>>>> I’m trying to follow the instructions at:  
>>>>>>> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530
>>>>>>> 
>>>>>>> I'm using one machine for a web server (e.g. Apache, womonitor) and one 
>>>>>>> for the application server (wotaskd, my app)
>>>>>>> 
>>>>>>> I’ve set the WebObjectsConfig appropriately on the webserver machine, 
>>>>>>> e.g.: 
>>>>>>> 
>>>>>>> WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 
>>>>>>> 10
>>>>>>> 
>>>>>>> I have added the application server host and the application to java 
>>>>>>> monitor on the web server and it all looks good.
>>>>>>> 
>>>>>>> I start up the remote application from the webserver javamonitor, but 
>>>>>>> when I try to reach the app using the webserver URL, it says 
>>>>>>> application not found.  However, if I try to access the application by 
>>>>>>> going straight to the application server URL, it works.  (I do have 
>>>>>>> apache setup on the application server as well).
>>>&g

Re: Using multiple servers

[Klaus Berkling]

> On Dec 7, 2015, at 10:16 PM, Jeff Schmitz  wrote:
> 
> I believe I’ve checked everything you mention (see below) to no avail.  One 
> thought I had is that the servers are running different Mac OS versions.  
> Could the WOAdaptor compiled for El Capitan on the head machine not be able 
> to use a remote app instance running under Mt. Lion on the remote machine?

The OS probably doesn’t matter.  Is this right:

netbrackets1.netbrackets.com has address 208.52.161.87
87.161.52.208.in-addr.arpa domain name pointer netbrackets1.netbrackets.com.

netbrandeds-mini1.netbrandeds.info has address 208.52.189.44
44.189.52.208.in-addr.arpa domain name pointer 
netbrandeds-mini1.netbrandeds.info.

I have a feeling the servers need to be in the same domain - Can someone second 
that?
I always put my hosts on a private network but if you have Mac minis you might 
not have that option (maybe firewire of thunderbolt network bridge?).
You don’t want to send your application traffic over a co-location network 
anyways.

> 
> 
> 
>> On Dec 7, 2015, at 11:02 PM, Klaus Berkling > > wrote:
>> 
>> 
>> On Dec 6, 2015, at 9:21 PM, Jeff Schmitz > > wrote:
>> 
>>> I’m trying to follow the instructions at:  
>>> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530 
>>> 
>>> 
>>> I'm using one machine for a web server (e.g. Apache, womonitor) and one for 
>>> the application server (wotaskd, my app)
>>> 
>>> I’ve set the WebObjectsConfig appropriately on the webserver machine, e.g.: 
>>> 
>>> WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 
>>>  10
>>> 
>>> I have added the application server host and the application to java 
>>> monitor on the web server and it all looks good.
>>> 
>>> I start up the remote application from the webserver javamonitor, but when 
>>> I try to reach the app using the webserver URL, it says application not 
>>> found.  However, if I try to access the application by going straight to 
>>> the application server URL, it works.  (I do have apache setup on the 
>>> application server as well).
>>> 
>>> I tested the 2001 and 1085 ports using telnet from the web server to the 
>>> application server, and both ports are open.
>>> 
>>> One thing that isn’t clear in the wiki instructions is what the WOHost 
>>> parameters should be set to on the app server machine.  I set them to the 
>>> app server itself’s address, and it works with a local instance of 
>>> Apache/JavaMonitor, but should I keep them set to this when I want to run 
>>> them as remote applications from the webserver?
>>> 
>>> If that’s not it, any other ideas?
>> 
>> 
>> If it's not a firewall issue, it might be a DNS issue if you are using host 
>> names.  If memory serves then use the WOHost parameter as the hostname you 
>> use in JavaMonitor. If you have multiple IP addresses you'll need to check 
>> if everyone is listing on the right socket, check with lsof -i tcp:1085 or 
>> lsof -i tcp:2001
> I can definitely telnet from the head machine to both port 2001 and 1085 on 
> the app server.  WOHost in the respective wotaskd property files on each 
> server matches the respective host in JavaMonitor .  Also, reverse DNS 
> lookups are correct for both machines.
>> 
>> Make sure there is only one JavaMonior running, usually on the head node. 
>> One wotaskd on each server and only one apache web server - the head node.
> JavaMonitor is only running on the head node.  Each server has a wotaskd 
> running, and apache is only running on the head node.
>> 
>> Try to completely set up one host only, so no www2 server anywhere - not in 
>> JavaMonitor nor WebObjectsConfig. First use localhost and make sure the app 
>> is working.
> Everything works fine on the head node, which is running on instance of the 
> application, and all WOHost parameters and specified JavaMonitor hosts are 
> using domain name, NOT localhost.
>> 
>> Then use the servers' IP address, at this point you can't use 'localhost' 
>> anymore anywhere. Make sure your app is still working. 
> The head node is working using the domain name that comes up on a reverse 
> lookup of the machine IP address.
> 
>> After that add the other host to WebObjectsConfig and JavaMonitor using the 
>> IP addresses (avoiding any DNS issues). Double check the syntax on that 
>> line. JavaMonitor should say that both hosts are available.
> Done, again using domain name that comes up on reverse host lookup of the 
> machine IP, e.g. netbrandeds-mini1.netbrandeds.info 
> 
> host 208.52.189.44
> 44.189.52.208.in-addr.arpa domain name pointer 
> netbrandeds-mini1.netbrandeds.info 
> .
>> 
> JavaMonitor on the head machine does 

Re: Using multiple servers

[Jeff Schmitz]

Thanks for checking that out, sounds plausible.  And yeah, not the best 
solution, but I wanted to see if I could get it working at all and take it from 
there.  I may try using IP’s for WOHost values.



> On Dec 8, 2015, at 3:11 PM, Klaus Berkling  wrote:
> 
>> 
>> On Dec 7, 2015, at 10:16 PM, Jeff Schmitz > > wrote:
>> 
>> I believe I’ve checked everything you mention (see below) to no avail.  One 
>> thought I had is that the servers are running different Mac OS versions.  
>> Could the WOAdaptor compiled for El Capitan on the head machine not be able 
>> to use a remote app instance running under Mt. Lion on the remote machine?
> 
> The OS probably doesn’t matter.  Is this right:
> 
> netbrackets1.netbrackets.com  has 
> address 208.52.161.87
> 87.161.52.208.in-addr.arpa domain name pointer netbrackets1.netbrackets.com 
> .
> 
> netbrandeds-mini1.netbrandeds.info 
>  has address 208.52.189.44
> 44.189.52.208.in-addr.arpa domain name pointer 
> netbrandeds-mini1.netbrandeds.info 
> .
> 
> I have a feeling the servers need to be in the same domain - Can someone 
> second that?
> I always put my hosts on a private network but if you have Mac minis you 
> might not have that option (maybe firewire of thunderbolt network bridge?).
> You don’t want to send your application traffic over a co-location network 
> anyways.
> 
>> 
>> 
>> 
>>> On Dec 7, 2015, at 11:02 PM, Klaus Berkling >> > wrote:
>>> 
>>> 
>>> On Dec 6, 2015, at 9:21 PM, Jeff Schmitz >> > wrote:
>>> 
 I’m trying to follow the instructions at:  
 https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530 
 
 
 I'm using one machine for a web server (e.g. Apache, womonitor) and one 
 for the application server (wotaskd, my app)
 
 I’ve set the WebObjectsConfig appropriately on the webserver machine, 
 e.g.: 
 
 WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 
  10
 
 I have added the application server host and the application to java 
 monitor on the web server and it all looks good.
 
 I start up the remote application from the webserver javamonitor, but when 
 I try to reach the app using the webserver URL, it says application not 
 found.  However, if I try to access the application by going straight to 
 the application server URL, it works.  (I do have apache setup on the 
 application server as well).
 
 I tested the 2001 and 1085 ports using telnet from the web server to the 
 application server, and both ports are open.
 
 One thing that isn’t clear in the wiki instructions is what the WOHost 
 parameters should be set to on the app server machine.  I set them to the 
 app server itself’s address, and it works with a local instance of 
 Apache/JavaMonitor, but should I keep them set to this when I want to run 
 them as remote applications from the webserver?
 
 If that’s not it, any other ideas?
>>> 
>>> 
>>> If it's not a firewall issue, it might be a DNS issue if you are using host 
>>> names.  If memory serves then use the WOHost parameter as the hostname you 
>>> use in JavaMonitor. If you have multiple IP addresses you'll need to check 
>>> if everyone is listing on the right socket, check with lsof -i tcp:1085 or 
>>> lsof -i tcp:2001
>> I can definitely telnet from the head machine to both port 2001 and 1085 on 
>> the app server.  WOHost in the respective wotaskd property files on each 
>> server matches the respective host in JavaMonitor .  Also, reverse DNS 
>> lookups are correct for both machines.
>>> 
>>> Make sure there is only one JavaMonior running, usually on the head node. 
>>> One wotaskd on each server and only one apache web server - the head node.
>> JavaMonitor is only running on the head node.  Each server has a wotaskd 
>> running, and apache is only running on the head node.
>>> 
>>> Try to completely set up one host only, so no www2 server anywhere - not in 
>>> JavaMonitor nor WebObjectsConfig. First use localhost and make sure the app 
>>> is working.
>> Everything works fine on the head node, which is running on instance of the 
>> application, and all WOHost parameters and specified JavaMonitor hosts are 
>> using domain name, NOT localhost.
>>> 
>>> Then use the servers' IP address, at this point you can't use 'localhost' 
>>> anymore anywhere. Make sure your app is still working. 
>> The head node is working using the domain name that comes up on a reverse 
>> lookup of the 

Re: Using multiple servers

[Klaus Berkling]

On Dec 8, 2015, at 8:45 PM, Jeff Schmitz  wrote:

> Thanks for checking that out, sounds plausible.  And yeah, not the best 
> solution, but I wanted to see if I could get it working at all and take it 
> from there.  I may try using IP’s for WOHost values.

I don't think IPs in different subnet will work ether but I haven't had a setup 
in that sort of environment.
Someone correct me... Bueller ... Bueller ...

> 
> 
> 
>> On Dec 8, 2015, at 3:11 PM, Klaus Berkling  wrote:
>> 
>>> 
>>> On Dec 7, 2015, at 10:16 PM, Jeff Schmitz  wrote:
>>> 
>>> I believe I’ve checked everything you mention (see below) to no avail.  One 
>>> thought I had is that the servers are running different Mac OS versions.  
>>> Could the WOAdaptor compiled for El Capitan on the head machine not be able 
>>> to use a remote app instance running under Mt. Lion on the remote machine?
>> 
>> The OS probably doesn’t matter.  Is this right:
>> 
>> netbrackets1.netbrackets.com has address 208.52.161.87
>> 87.161.52.208.in-addr.arpa domain name pointer netbrackets1.netbrackets.com.
>> 
>> netbrandeds-mini1.netbrandeds.info has address 208.52.189.44
>> 44.189.52.208.in-addr.arpa domain name pointer 
>> netbrandeds-mini1.netbrandeds.info.
>> 
>> I have a feeling the servers need to be in the same domain - Can someone 
>> second that?
>> I always put my hosts on a private network but if you have Mac minis you 
>> might not have that option (maybe firewire of thunderbolt network bridge?).
>> You don’t want to send your application traffic over a co-location network 
>> anyways.
>> 
>>> 
>>> 
>>> 
 On Dec 7, 2015, at 11:02 PM, Klaus Berkling  wrote:
 
 
 On Dec 6, 2015, at 9:21 PM, Jeff Schmitz  wrote:
 
> I’m trying to follow the instructions at:  
> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530
> 
> I'm using one machine for a web server (e.g. Apache, womonitor) and one 
> for the application server (wotaskd, my app)
> 
> I’ve set the WebObjectsConfig appropriately on the webserver machine, 
> e.g.: 
> 
> WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 10
> 
> I have added the application server host and the application to java 
> monitor on the web server and it all looks good.
> 
> I start up the remote application from the webserver javamonitor, but 
> when I try to reach the app using the webserver URL, it says application 
> not found.  However, if I try to access the application by going straight 
> to the application server URL, it works.  (I do have apache setup on the 
> application server as well).
> 
> I tested the 2001 and 1085 ports using telnet from the web server to the 
> application server, and both ports are open.
> 
> One thing that isn’t clear in the wiki instructions is what the WOHost 
> parameters should be set to on the app server machine.  I set them to the 
> app server itself’s address, and it works with a local instance of 
> Apache/JavaMonitor, but should I keep them set to this when I want to run 
> them as remote applications from the webserver?
> 
> If that’s not it, any other ideas?
 
 
 If it's not a firewall issue, it might be a DNS issue if you are using 
 host names.  If memory serves then use the WOHost parameter as the 
 hostname you use in JavaMonitor. If you have multiple IP addresses you'll 
 need to check if everyone is listing on the right socket, check with lsof 
 -i tcp:1085 or lsof -i tcp:2001
>>> I can definitely telnet from the head machine to both port 2001 and 1085 on 
>>> the app server.  WOHost in the respective wotaskd property files on each 
>>> server matches the respective host in JavaMonitor .  Also, reverse DNS 
>>> lookups are correct for both machines.
 
 Make sure there is only one JavaMonior running, usually on the head node. 
 One wotaskd on each server and only one apache web server - the head node.
>>> JavaMonitor is only running on the head node.  Each server has a wotaskd 
>>> running, and apache is only running on the head node.
 
 Try to completely set up one host only, so no www2 server anywhere - not 
 in JavaMonitor nor WebObjectsConfig. First use localhost and make sure the 
 app is working.
>>> Everything works fine on the head node, which is running on instance of the 
>>> application, and all WOHost parameters and specified JavaMonitor hosts are 
>>> using domain name, NOT localhost.
 
 Then use the servers' IP address, at this point you can't use 'localhost' 
 anymore anywhere. Make sure your app is still working. 
>>> The head node is working using the domain name that comes up on a reverse 
>>> lookup of the machine IP address.
>>> 
 After that add the other host to WebObjectsConfig and 

Re: Using multiple servers

[Chuck Hill]

I have not tried that either.  I have no idea if that is a real problem or why.


From: 
<webobjects-dev-bounces+chill=gevityinc@lists.apple.com<mailto:webobjects-dev-bounces+chill=gevityinc@lists.apple.com>>
 on behalf of Klaus Berkling 
<webobje...@berkling.us<mailto:webobje...@berkling.us>>
Date: Tuesday, December 8, 2015 at 9:16 PM
To: WebObjects Development 
<webobjects-dev@lists.apple.com<mailto:webobjects-dev@lists.apple.com>>
Subject: Re: Using multiple servers


On Dec 8, 2015, at 8:45 PM, Jeff Schmitz 
<jeffschm...@icloud.com<mailto:jeffschm...@icloud.com>> wrote:

Thanks for checking that out, sounds plausible.  And yeah, not the best 
solution, but I wanted to see if I could get it working at all and take it from 
there.  I may try using IP’s for WOHost values.

I don't think IPs in different subnet will work ether but I haven't had a setup 
in that sort of environment.
Someone correct me... Bueller ... Bueller ...




On Dec 8, 2015, at 3:11 PM, Klaus Berkling 
<webobje...@berkling.us<mailto:webobje...@berkling.us>> wrote:


On Dec 7, 2015, at 10:16 PM, Jeff Schmitz 
<jeffschm...@icloud.com<mailto:jeffschm...@icloud.com>> wrote:

I believe I’ve checked everything you mention (see below) to no avail.  One 
thought I had is that the servers are running different Mac OS versions.  Could 
the WOAdaptor compiled for El Capitan on the head machine not be able to use a 
remote app instance running under Mt. Lion on the remote machine?

The OS probably doesn’t matter.  Is this right:

netbrackets1.netbrackets.com<http://netbrackets1.netbrackets.com/> has address 
208.52.161.87
87.161.52.208.in-addr.arpa domain name pointer 
netbrackets1.netbrackets.com<http://netbrackets1.netbrackets.com/>.

netbrandeds-mini1.netbrandeds.info<http://netbrandeds-mini1.netbrandeds.info/> 
has address 208.52.189.44
44.189.52.208.in-addr.arpa domain name pointer 
netbrandeds-mini1.netbrandeds.info<http://netbrandeds-mini1.netbrandeds.info/>.

I have a feeling the servers need to be in the same domain - Can someone second 
that?
I always put my hosts on a private network but if you have Mac minis you might 
not have that option (maybe firewire of thunderbolt network bridge?).
You don’t want to send your application traffic over a co-location network 
anyways.




On Dec 7, 2015, at 11:02 PM, Klaus Berkling 
<webobje...@berkling.us<mailto:webobje...@berkling.us>> wrote:


On Dec 6, 2015, at 9:21 PM, Jeff Schmitz 
<jeffschm...@icloud.com<mailto:jeffschm...@icloud.com>> wrote:

I’m trying to follow the instructions at:  
https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530

I'm using one machine for a web server (e.g. Apache, womonitor) and one for the 
application server (wotaskd, my app)

I’ve set the WebObjectsConfig appropriately on the webserver machine, e.g.:

WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 10

I have added the application server host and the application to java monitor on 
the web server and it all looks good.

I start up the remote application from the webserver javamonitor, but when I 
try to reach the app using the webserver URL, it says application not found.  
However, if I try to access the application by going straight to the 
application server URL, it works.  (I do have apache setup on the application 
server as well).

I tested the 2001 and 1085 ports using telnet from the web server to the 
application server, and both ports are open.

One thing that isn’t clear in the wiki instructions is what the WOHost 
parameters should be set to on the app server machine.  I set them to the app 
server itself’s address, and it works with a local instance of 
Apache/JavaMonitor, but should I keep them set to this when I want to run them 
as remote applications from the webserver?

If that’s not it, any other ideas?


If it's not a firewall issue, it might be a DNS issue if you are using host 
names.  If memory serves then use the WOHost parameter as the hostname you use 
in JavaMonitor. If you have multiple IP addresses you'll need to check if 
everyone is listing on the right socket, check with lsof -i tcp:1085 or lsof -i 
tcp:2001
I can definitely telnet from the head machine to both port 2001 and 1085 on the 
app server.  WOHost in the respective wotaskd property files on each server 
matches the respective host in JavaMonitor .  Also, reverse DNS lookups are 
correct for both machines.

Make sure there is only one JavaMonior running, usually on the head node. One 
wotaskd on each server and only one apache web server - the head node.
JavaMonitor is only running on the head node.  Each server has a wotaskd 
running, and apache is only running on the head node.

Try to completely set up one host only, so no www2 server anywhere - not in 
JavaMonitor nor WebObjectsConfig. First use localhost and make sure the app is 
working.
Everythin

Re: Using multiple servers

[Jeff Schmitz]

I believe I’ve checked everything you mention (see below) to no avail.  One 
thought I had is that the servers are running different Mac OS versions.  Could 
the WOAdaptor compiled for El Capitan on the head machine not be able to use a 
remote app instance running under Mt. Lion on the remote machine?



> On Dec 7, 2015, at 11:02 PM, Klaus Berkling  wrote:
> 
> 
> On Dec 6, 2015, at 9:21 PM, Jeff Schmitz  > wrote:
> 
>> I’m trying to follow the instructions at:  
>> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530 
>> 
>> 
>> I'm using one machine for a web server (e.g. Apache, womonitor) and one for 
>> the application server (wotaskd, my app)
>> 
>> I’ve set the WebObjectsConfig appropriately on the webserver machine, e.g.: 
>> 
>> WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 
>>  10
>> 
>> I have added the application server host and the application to java monitor 
>> on the web server and it all looks good.
>> 
>> I start up the remote application from the webserver javamonitor, but when I 
>> try to reach the app using the webserver URL, it says application not found. 
>>  However, if I try to access the application by going straight to the 
>> application server URL, it works.  (I do have apache setup on the 
>> application server as well).
>> 
>> I tested the 2001 and 1085 ports using telnet from the web server to the 
>> application server, and both ports are open.
>> 
>> One thing that isn’t clear in the wiki instructions is what the WOHost 
>> parameters should be set to on the app server machine.  I set them to the 
>> app server itself’s address, and it works with a local instance of 
>> Apache/JavaMonitor, but should I keep them set to this when I want to run 
>> them as remote applications from the webserver?
>> 
>> If that’s not it, any other ideas?
> 
> 
> If it's not a firewall issue, it might be a DNS issue if you are using host 
> names.  If memory serves then use the WOHost parameter as the hostname you 
> use in JavaMonitor. If you have multiple IP addresses you'll need to check if 
> everyone is listing on the right socket, check with lsof -i tcp:1085 or lsof 
> -i tcp:2001
I can definitely telnet from the head machine to both port 2001 and 1085 on the 
app server.  WOHost in the respective wotaskd property files on each server 
matches the respective host in JavaMonitor .  Also, reverse DNS lookups are 
correct for both machines.
> 
> Make sure there is only one JavaMonior running, usually on the head node. One 
> wotaskd on each server and only one apache web server - the head node.
JavaMonitor is only running on the head node.  Each server has a wotaskd 
running, and apache is only running on the head node.
> 
> Try to completely set up one host only, so no www2 server anywhere - not in 
> JavaMonitor nor WebObjectsConfig. First use localhost and make sure the app 
> is working.
Everything works fine on the head node, which is running on instance of the 
application, and all WOHost parameters and specified JavaMonitor hosts are 
using domain name, NOT localhost.
> 
> Then use the servers' IP address, at this point you can't use 'localhost' 
> anymore anywhere. Make sure your app is still working.
The head node is working using the domain name that comes up on a reverse 
lookup of the machine IP address.

> After that add the other host to WebObjectsConfig and JavaMonitor using the 
> IP addresses (avoiding any DNS issues). Double check the syntax on that line. 
> JavaMonitor should say that both hosts are available.
Done, again using domain name that comes up on reverse host lookup of the 
machine IP, e.g. netbrandeds-mini1.netbrandeds.info
host 208.52.189.44
44.189.52.208.in-addr.arpa domain name pointer 
netbrandeds-mini1.netbrandeds.info.
> 
JavaMonitor on the head machine does say both hosts are available.

> If you make changes in JavaMonitor to the configuration, make sure you see 
> the SiteConfig.xml file change on both servers (usually in 
> /Library/WebObjects/Configuration).
I did have to do a Synchronize Host to get both SiteConfig.xml files in 
agreement as to the URL to Adaptor setting.  It originally was pointing to 
itself.  However even after doing the sync, it’s still exhibiting the same 
behavior.

> 
> If both servers are talking to each other, add your application in 
> JavaMonitor and add one instance for each host. Then try to turn them on and 
> off and watch the processes on each of the hosts start and stop. 
JavaMonitor is able to wotaskd on both servers and can start and stop 
application instances on each server.  So, everything looks normal except the 
head node’s apache/WOAdaptor is not able to successfully invoke the instance on 
the secondary node to serve application pages.  If I set the instance on 

Re: Using multiple servers

[Klaus Berkling]

On Dec 6, 2015, at 9:21 PM, Jeff Schmitz  wrote:

> I’m trying to follow the instructions at:  
> https://wiki.wocommunity.org/pages/viewpage.action?pageId=7143530
> 
> I'm using one machine for a web server (e.g. Apache, womonitor) and one for 
> the application server (wotaskd, my app)
> 
> I’ve set the WebObjectsConfig appropriately on the webserver machine, e.g.: 
> 
> WebObjectsConfig http://www.server.com:1085,http://www2.server.com:1085 10
> 
> I have added the application server host and the application to java monitor 
> on the web server and it all looks good.
> 
> I start up the remote application from the webserver javamonitor, but when I 
> try to reach the app using the webserver URL, it says application not found.  
> However, if I try to access the application by going straight to the 
> application server URL, it works.  (I do have apache setup on the application 
> server as well).
> 
> I tested the 2001 and 1085 ports using telnet from the web server to the 
> application server, and both ports are open.
> 
> One thing that isn’t clear in the wiki instructions is what the WOHost 
> parameters should be set to on the app server machine.  I set them to the app 
> server itself’s address, and it works with a local instance of 
> Apache/JavaMonitor, but should I keep them set to this when I want to run 
> them as remote applications from the webserver?
> 
> If that’s not it, any other ideas?


If it's not a firewall issue, it might be a DNS issue if you are using host 
names.  If memory serves then use the WOHost parameter as the hostname you use 
in JavaMonitor. If you have multiple IP addresses you'll need to check if 
everyone is listing on the right socket, check with lsof -i tcp:1085 or lsof -i 
tcp:2001

Make sure there is only one JavaMonior running, usually on the head node. One 
wotaskd on each server and only one apache web server - the head node.

Try to completely set up one host only, so no www2 server anywhere - not in 
JavaMonitor nor WebObjectsConfig. First use localhost and make sure the app is 
working.

Then use the servers' IP address, at this point you can't use 'localhost' 
anymore anywhere. Make sure your app is still working. After that add the other 
host to WebObjectsConfig and JavaMonitor using the IP addresses (avoiding any 
DNS issues). Double check the syntax on that line. JavaMonitor should say that 
both hosts are available.

If you make changes in JavaMonitor to the configuration, make sure you see the 
SiteConfig.xml file change on both servers (usually in 
/Library/WebObjects/Configuration).

If both servers are talking to each other, add your application in JavaMonitor 
and add one instance for each host. Then try to turn them on and off and watch 
the processes on each of the hosts start and stop. 

BTW, you should be able to manage all instance nodes and instances regardless 
of the web server. You can check the mechanics before you turn on the site.

Hope this helps. It's been a while since I've done this.


kib



"We keep moving forward, opening new doors, and doing new things, because we're 
curious and curiosity keeps leading us down new paths."
Walt Disney

Klaus Berkling
www.berkling.us | @kiberkli | Photography





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