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Posted to dev@stratos.apache.org by Athanasios Tsitsipas <at...@uni-ulm.de> on 2015/06/03 15:53:35 UTC

How to use the Load Balancer with openstack

Hi there,

 

We are trying to install Stratos 4.1.0 and ok we got over some bugs in the
files. More or less we can create many cartridges and use them with
applications. But we need a load balancer now connected with a ghost
application integrated with nodejs. What is the lb module in the puppet
master modules and what is the haproxy. How we will subscribe the
application we need to the load balancer and access the load balancer and
redirect us to the  multiple instances of the application above. Is there
any guide we can use?

 

Many thanks in advance

 

Athanasios Tsitsipas

Re: How to use the Load Balancer with openstack

Posted by David Hbase <da...@gmail.com>.

Hi, Dev

Need get a configuration guide for the Stratos LB. Especially, if we need
to scaling/LB the WSO2IS, WSO2BAM, WSO2USE separately with only ONE Stratos
LB.

Thanks
David

On Sun, Jun 7, 2015 at 7:37 AM, Gayan Gunarathne <ga...@wso2.com> wrote:

> Hi,
>
> On Sun, Jun 7, 2015 at 6:03 PM, Athanasios Tsitsipas <
> athanasios.tsitsipas@uni-ulm.de> wrote:
>
>> Hi Gayan,
>>
>>
>>
>> Excuse me for the massive mails.
>>
>> I fixed the problem with the unknown 7811 port. In thrift-client-config.xml
>> of lb module it was defind as port the 7711 and maybe the https somehow it
>> is configured at the next port 7811. If I define as port the 7611 and
>> secure port 7711, everything works! I don’t get any error.
>>
> Great! It is a pleasure to hear that.Yeah usually thrift port is 7611 and
> SSL thrift port will be 7711.
>
>
>> Still, the
>>     -Dthrift.client.config.file.path="$CARBON_HOME/repository/conf/thrift-client-config.xml"
>> \
>>
>> Is not filled in the stratos.sh. Even if you changed it in the template.
>> It seems that it uses the arguments from the stratos.bat or something
>> else???
>>
>> Also, in the init.pp the push templates doesn’t push the stratos.sh.erb :/
>>
>
> Thanks for reporting this.IMO we need to push the Stratos.sh with puppet
> as we done for other modules.
>
>>
>>
>> Thank you for your time.
>>
>>
>>
>> *From:* Athanasios Tsitsipas [mailto:athanasios.tsitsipas@uni-ulm.de]
>> *Sent:* Sunday, June 7, 2015 11:07 AM
>>
>> *To:* dev@stratos.apache.org
>> *Subject:* RE: How to use the Load Balancer with openstack
>>
>>
>>
>> At the thrift-client-config.xml there is a configuration for the client.
>> Which ip and port should I include. By default in the zip file it has:
>>
>>
>>
>> <!-- Apache thrift client configuration for publishing statistics to WSO2
>> CEP -->
>>
>> <thriftClientConfiguration>
>>
>>     <username>admin</username>
>>
>>     <password>admin</password>
>>
>>     <ip>localhost</ip>
>>
>>     <port>7711</port>
>>
>> </thriftClientConfiguration>
>>
>>
>>
>> At the nginx extention parameters it has also these arguments in the
>> nginx-extension.sh
>>
>>             -Dthrift.receiver.ip= <>
>>
>>             -Dthrift.receiver.port=7711
>>
>>
>>
>> What should I do? And where I can specify these ports for thrift.
>>
>>
>>
>> Also the template stratos.sh.erb is not used it seems that it takes the
>> parameters from the stratos.bat. Can you check the file at the end, there
>> are some syntax errors probably.
>>
>>
>>
>> Regards,
>>
>> Thanos
>>
>>
>>
>>
>>
>>
>>
>> *From:* Gayan Gunarathne [mailto:gayang@wso2.com <ga...@wso2.com>]
>> *Sent:* Sunday, June 7, 2015 7:21 AM
>> *To:* dev@stratos.apache.org
>> *Subject:* Re: How to use the Load Balancer with openstack
>>
>>
>>
>> Hi,
>>
>>
>>
>> On Sun, Jun 7, 2015 at 4:45 AM, Athanasios Tsitsipas <
>> athanasios.tsitsipas@uni-ulm.de> wrote:
>>
>> I had success with the nginx eventually.
>>
>>
>>
>> Glad to hear that you have success with the nginx.
>>
>>
>>
>> But now with the puppet module of stratos load balancer. I think there is
>> a problem:
>>
>>
>>
>> In the stratos.sh on the spawned vm of load balancer under the folder
>> /mnt/ …. , where the zip file of lb is unzip it misses the
>>
>>
>>
>>     -Dthrift.client.config.file.path="$CARBON_HOME/repository/conf/thrift-client-config.xml"
>> \
>>
>>
>>
>> A line that I get an error for! In the zip file at puppet master this
>> line exists, but not in the spawned vm. Can we get a workaround for this?
>>
>> We need to add that property to the stratos.sh.erb of load balancer
>> puppet module. Now I have added that system property to the
>> https://github.com/apache/stratos/blob/master/tools/puppet3/modules/lb/templates/bin/stratos.sh.erb.[1]
>>
>>
>>
>>  [1]
>> https://git1-us-west.apache.org/repos/asf?p=stratos.git;a=blob;f=tools/puppet3/modules/lb/templates/bin/stratos.sh.erb;hb=2b7a104c
>>
>>
>>
>> Regards,
>>
>> Thanos
>>
>>
>>
>>
>>
>> P.s the error I get is the following
>>
>> TID: [0] [LB] [2015-06-07 18:43:25,352] FATAL
>> {org.apache.stratos.load.balancer.internal.LoadBalancerServiceComponent} -
>> Failed to activate load balancer service component
>>
>> java.lang.RuntimeException: Thrift client configuration file path system
>> property is not set: thrift.client.config.file.path
>>
>>         at
>> org.apache.stratos.common.statistics.publisher.wso2.cep.ThriftClientConfig.getInstance(ThriftClientConfig.java:48)
>>
>>         at
>> org.apache.stratos.common.statistics.publisher.wso2.cep.WSO2CEPStatisticsPublisher.<init>(WSO2CEPStatisticsPublisher.java:56)
>>
>>         at
>> org.apache.stratos.common.statistics.publisher.wso2.cep.WSO2CEPInFlightRequestPublisher.<init>(WSO2CEPInFlightRequestPublisher.java:42)
>>
>>         at
>> org.apache.stratos.common.statistics.publisher.InFlightRequestPublisherFactory.createInFlightRequestPublisher(InFlightRequestPublisherFactory.java:31)
>>
>>         at
>> org.apache.stratos.load.balancer.common.statistics.notifier.LoadBalancerStatisticsNotifier.<init>(LoadBalancerStatisticsNotifier.java:49)
>>
>>         at
>> org.apache.stratos.load.balancer.internal.LoadBalancerServiceComponent.startStatisticsNotifier(LoadBalancerServiceComponent.java:235)
>>
>>         at
>> org.apache.stratos.load.balancer.internal.LoadBalancerServiceComponent.activate(LoadBalancerServiceComponent.java:153)
>>
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>
>>         at java.lang.reflect.Method.invoke(Method.java:606)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:347)
>>
>>         at
>> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
>>
>>         at
>> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
>>
>>         at
>> org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
>>
>>         at
>> org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:451)
>>
>>         at
>> org.wso2.carbon.mediation.initializer.ServiceBusInitializer.activate(ServiceBusInitializer.java:245)
>>
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>
>>         at java.lang.reflect.Method.invoke(Method.java:606)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:347)
>>
>>         at
>> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
>>
>>         at
>> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
>>
>>         at
>> org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
>>
>>         at
>> org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:451)
>>
>>         at
>> org.wso2.carbon.event.core.internal.builder.EventBrokerHandler.startEventBroker(EventBrokerHandler.java:58)
>>
>>         at
>> org.wso2.carbon.event.core.internal.builder.EventBrokerBuilderDS.activate(EventBrokerBuilderDS.java:72)
>>
>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>
>>         at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>
>>         at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>
>>         at java.lang.reflect.Method.invoke(Method.java:606)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146)
>>
>>         at
>> org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:347)
>>
>>         at
>> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620)
>>
>>         at
>> org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197)
>>
>>         at
>> org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343)
>>
>>         at
>> org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.FilteredServiceListener.serviceChanged(FilteredServiceListener.java:107)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130)
>>
>>         at
>> org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:451)
>>
>>         at
>> org.wso2.carbon.core.init.CarbonServerManager.initializeCarbon(CarbonServerManager.java:517)
>>
>>         at
>> org.wso2.carbon.core.init.CarbonServerManager.removePendingItem(CarbonServerManager.java:290)
>>
>>         at
>> org.wso2.carbon.core.init.PreAxis2ConfigItemListener.bundleChanged(PreAxis2ConfigItemListener.java:118)
>>
>>         at
>> org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:847)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
>>
>>         at
>> org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> *From:* Athanasios Tsitsipas [mailto:athanasios.tsitsipas@uni-ulm.de]
>> *Sent:* Saturday, June 6, 2015 4:06 PM
>> *To:* dev@stratos.apache.org
>> *Subject:* RE: How to use the Load Balancer with openstack
>>
>>
>>
>> Hi I did that, right now. I installed the nginx to Ubuntu and provided
>> the executable path(/usr/sbin/nginx).
>>
>> If only download the distribution of nginx somehow I need to compile the
>> code right?There is no executable file in it. I downloaded the distribution
>> from this link: http://nginx.org/en/download.html.
>>
>>
>>
>> I’m getting this error now:
>>
>>
>>
>> [2015-06-06 13:59:04,464]  INFO - [Nginx] Generating nginx
>> configuration...
>>
>> [2015-06-06 13:59:04,576]  INFO - [Main] Configuration written to file:
>> /tmp/nginx.cfg
>>
>> [2015-06-06 13:59:04,576]  INFO - [Nginx] Starting nginx instance...
>>
>> [2015-06-06 13:59:04,585] ERROR - [Nginx] Could not start nginx instance
>>
>> [2015-06-06 13:59:04,586] ERROR - [LoadBalancerExtension] Could not start
>> load balancer
>>
>> org.apache.stratos.load.balancer.extension.api.exception.LoadBalancerExtensionException:
>> java.lang.RuntimeException: Command execution failed:
>>
>> nginx: [emerg] unknown directive "tcp" in /tmp/nginx.cfg:5
>>
>>
>>
>>         at org.apache.stratos.nginx.extension.Nginx.start(Nginx.java:92)
>>
>>         at
>> org.apache.stratos.load.balancer.extension.api.LoadBalancerExtension.configureAndStart(LoadBalancerExtension.java:247)
>>
>>         at
>> org.apache.stratos.load.balancer.extension.api.LoadBalancerExtension.access$100(LoadBalancerExtension.java:46)
>>
>>         at
>> org.apache.stratos.load.balancer.extension.api.LoadBalancerExtension$1.onEvent(LoadBalancerExtension.java:184)
>>
>>         at
>> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
>>
>>         at java.util.Observable.notifyObservers(Observable.java:159)
>>
>>         at
>> org.apache.stratos.messaging.event.EventObservable.notifyEventListeners(EventObservable.java:51)
>>
>>         at
>> org.apache.stratos.messaging.message.processor.topology.CompleteTopologyMessageProcessor.process(CompleteTopologyMessageProcessor.java:68)
>>
>>         at
>> org.apache.stratos.messaging.message.processor.MessageProcessorChain.process(MessageProcessorChain.java:61)
>>
>>         at
>> org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator.run(TopologyEventMessageDelegator.java:73)
>>
>>         at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>
>>         at java.lang.Thread.run(Thread.java:745)
>>
>> Caused by: java.lang.RuntimeException: Command execution failed:
>>
>> nginx: [emerg] unknown directive "tcp" in /tmp/nginx.cfg:5
>>
>>
>>
>>         at
>> org.apache.stratos.common.util.CommandUtils.executeCommand(CommandUtils.java:62)
>>
>>         at org.apache.stratos.nginx.extension.Nginx.start(Nginx.java:88)
>>
>>         ... 12 more
>>
>> [2015-06-06 13:59:04,599]  INFO - [Nginx] Stopping nginx...
>>
>> [2015-06-06 13:59:04,605] ERROR - [Nginx] Could not stop nginx
>>
>>
>>
>>
>>
>> Can you please provide me with a link for the binary distribution of
>> nginx ?
>>
>>
>>
>> *From:* Gayan Gunarathne [mailto:gayang@wso2.com <ga...@wso2.com>]
>> *Sent:* Saturday, June 6, 2015 7:49 AM
>> *To:* dev@stratos.apache.org
>> *Subject:* Re: How to use the Load Balancer with openstack
>>
>>
>>
>> Hi,
>>
>>
>>
>> On Sat, Jun 6, 2015 at 5:08 AM, Athanasios Tsitsipas <
>> athanasios.tsitsipas@uni-ulm.de> wrote:
>>
>> I tried to start nginx extention…
>>
>>
>>
>> It is get notified that an application exists but I get the following
>> error
>>
>>
>>
>> [2015-06-05 23:34:03,654]  INFO - [TopologyProvider] Member added to
>> cluster: [cluster] test.ghost.ghost.domain [member] 192.168.8.42
>>
>> [2015-06-05 23:34:04,211]  INFO - [Nginx] Generating nginx
>> configuration...
>>
>> [2015-06-05 23:34:04,218]  INFO - [Main] Configuration written to file:
>> /tmp/nginx.cfg
>>
>> [2015-06-05 23:34:04,218]  INFO - [Nginx] Starting nginx instance...
>>
>> [2015-06-05 23:34:04,219] ERROR - [Nginx] Could not start nginx instance
>>
>> [2015-06-05 23:34:04,219] ERROR - [LoadBalancerExtension] Could not start
>> load balancer
>>
>> org.apache.stratos.load.balancer.extension.api.exception.LoadBalancerExtensionException:
>> java.io.IOException: Cannot run program "nginx": error=2, No such file or
>> directory
>>
>>         at org.apache.stratos.nginx.extension.Nginx.start(Nginx.java:92)
>>
>>
>> Seems load balancer can't find the program nginx. Did you download and
>> extract Nginx binary distribution and provide that nginx file
>> path( -Dexecutable.file.path)  in nginx-extension.sh? [1]
>>
>>
>> [1]
>> https://github.com/apache/stratos/blob/master/extensions/load-balancer/nginx-extension/INSTALL.md
>>
>>
>>         at
>> org.apache.stratos.load.balancer.extension.api.LoadBalancerExtension.configureAndStart(LoadBalancerExtension.java:247)
>>
>>         at
>> org.apache.stratos.load.balancer.extension.api.LoadBalancerExtension.access$100(LoadBalancerExtension.java:46)
>>
>>         at
>> org.apache.stratos.load.balancer.extension.api.LoadBalancerExtension$1.onEvent(LoadBalancerExtension.java:184)
>>
>>         at
>> org.apache.stratos.messaging.listener.EventListener.update(EventListener.java:42)
>>
>>         at java.util.Observable.notifyObservers(Observable.java:159)
>>
>>         at
>> org.apache.stratos.messaging.event.EventObservable.notifyEventListeners(EventObservable.java:51)
>>
>>         at
>> org.apache.stratos.messaging.message.processor.topology.CompleteTopologyMessageProcessor.process(CompleteTopologyMessageProcessor.java:68)
>>
>>         at
>> org.apache.stratos.messaging.message.processor.MessageProcessorChain.process(MessageProcessorChain.java:61)
>>
>>         at
>> org.apache.stratos.messaging.message.receiver.topology.TopologyEventMessageDelegator.run(TopologyEventMessageDelegator.java:73)
>>
>>         at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>>
>>         at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>>
>>         at java.lang.Thread.run(Thread.java:745)
>>
>> Caused by: java.io.IOException: Cannot run program "nginx": error=2, No
>> such file or directory
>>
>>         at java.lang.ProcessBuilder.start(ProcessBuilder.java:1047)
>>
>>         at java.lang.Runtime.exec(Runtime.java:617)
>>
>>         at java.lang.Runtime.exec(Runtime.java:450)
>>
>>         at java.lang.Runtime.exec(Runtime.java:347)
>>
>>         at
>> org.apache.stratos.common.util.CommandUtils.executeCommand(CommandUtils.java:43)
>>
>>         at org.apache.stratos.nginx.extension.Nginx.start(Nginx.java:88)
>>
>>         ... 12 more
>>
>> Caused by: java.io.IOException: error=2, No such file or directory
>>
>>         at java.lang.UNIXProcess.forkAndExec(Native Method)
>>
>>         at java.lang.UNIXProcess.<init>(UNIXProcess.java:186)
>>
>>         at java.lang.ProcessImpl.start(ProcessImpl.java:130)
>>
>>         at java.lang.ProcessBuilder.start(ProcessBuilder.java:1028)
>>
>>         ... 17 more
>>
>> [2015-06-05 23:34:04,228]  INFO - [Nginx] Stopping nginx...
>>
>> [2015-06-05 23:34:04,229] ERROR - [Nginx] Could not stop nginx
>>
>>
>>
>> I added the information for the activemq to jndi.properties file. Also I
>> changed the script file accordingly and the thrift xml.
>>
>>
>>
>> *From:* Imesh Gunaratne [mailto:imesh@apache.org]
>> *Sent:* Friday, June 5, 2015 9:05 PM
>> *To:* dev
>> *Subject:* Re: How to use the Load Balancer with openstack
>>
>>
>>
>> Hi Athanasios,
>>
>>
>>
>> It's nice to hear that you are using the latest codebase, it has three
>> load balancing options:
>>
>>
>>
>> 1. Stratos Load Balancer
>>
>> 2. Nginx (via extension)
>>
>> 3. HAproxy (via extension)
>>
>>
>>
>> First you could try to run either of these against your Stratos
>> deployment and see whether they are working as expected (before trying the
>> puppet module). Load balancer only requires ActiveMQ and CEP information
>> (IP, port) to run.
>>
>>
>>
>> Do a complete build and find 1 in the following folder:
>>
>>
>> https://github.com/apache/stratos/tree/master/products/load-balancer/modules/distribution
>>
>>
>>
>> Update loadbalancer.conf and thrift-client-config.xml with the above
>> values and start the product.
>>
>>
>>
>> Thanks
>>
>>
>>
>> On Wed, Jun 3, 2015 at 7:23 PM, Athanasios Tsitsipas <
>> athanasios.tsitsipas@uni-ulm.de> wrote:
>>
>> Hi there,
>>
>>
>>
>> We are trying to install Stratos 4.1.0 and ok we got over some bugs in
>> the files. More or less we can create many cartridges and use them with
>> applications. But we need a load balancer now connected with a ghost
>> application integrated with nodejs. What is the lb module in the puppet
>> master modules and what is the haproxy. How we will subscribe the
>> application we need to the load balancer and access the load balancer and
>> redirect us to the  multiple instances of the application above. Is there
>> any guide we can use?
>>
>>
>>
>> Many thanks in advance
>>
>>
>>
>> Athanasios Tsitsipas
>>
>>
>>
>>
>>
>> --
>>
>> Imesh Gunaratne
>>
>>
>>
>> Senior Technical Lead, WSO2
>>
>> Committer & PMC Member, Apache Stratos
>>
>>
>>
>>
>>
>> --
>>
>>
>>
>> Gayan Gunarathne
>> Technical Lead, WSO2 Inc. (http://wso2.com)
>>
>> Committer & PMC Member, Apache Stratos
>>
>> email : gayang@wso2.com  | mobile : +94 766819985
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>>
>>
>>
>> Gayan Gunarathne
>> Technical Lead, WSO2 Inc. (http://wso2.com)
>>
>> Committer & PMC Member, Apache Stratos
>>
>> email : gayang@wso2.com  | mobile : +94 766819985
>>
>>
>>
>>
>>
>
>
>
> --
>
> Gayan Gunarathne
> Technical Lead, WSO2 Inc. (http://wso2.com)
> Committer & PMC Member, Apache Stratos
> email : gayang@wso2.com  | mobile : +94 766819985
>
>
>