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From "Sergey Beryozkin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-5745) CXF Failover feature does not return to primary URL. It returns to first in failover urls.
Date Wed, 21 May 2014 11:17:38 GMT

    [ https://issues.apache.org/jira/browse/CXF-5745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14004578#comment-14004578
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Sergey Beryozkin commented on CXF-5745:
---------------------------------------

Hi,

Sure, Xilai provided a good extension - and this is what one should do, customize it,  whenever
a default approach does not work.
I'd have no problems with copying a primary URI to the list as opposed to writing the extension
code but it is up to a user in the end of the day how to do it.

> I still hope for a response if this is a bug or feature, though. 

I tried to provide my own interpretation of why it was not supported from the get go, we probably
won't know now. Does it really matter :-) ?

Do you think it should become a default behaviour ? May be it should, but no one has requested
it before so may be it was not a blocker for other users.
I've no strong opinion about it, as I said I'd just update the list or provided the extension
as Xilai recommends. 

May be a feature should have a flag disabled (or enabled by default) that will let it iterate
to the primary URI too. 
Xilai, would you like to do it, make your extension optionally enabled on the trunk ?

Cheers, Sergey



> CXF Failover feature does not return to primary URL. It returns to first in failover
urls.
> ------------------------------------------------------------------------------------------
>
>                 Key: CXF-5745
>                 URL: https://issues.apache.org/jira/browse/CXF-5745
>             Project: CXF
>          Issue Type: Bug
>          Components: JAX-WS Runtime
>    Affects Versions: 2.7.5
>            Reporter: Jan Zanda
>            Priority: Minor
>
> I have a WS consumer, which uses one primary URL and up to 8 failover urls. 
> The consumer is created this way (see also comments in code):
> {noformat}
> JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
> factory.setServiceClass(SomeClientClass.class);
> factory.setAddress(primaryUrl); // this is http://primaryhost/service
> factory.setFeatures(getFailoverFeatures());
> List<AbstractFeature> getFailoverFeatures() {
>   FailoverFeature feature = new FailoverFeature();
>   SequentialStrategy strategy = new SequentialStrategy(); 
>   strategy.setAlternateAddresses(failoverUrls); //failoverUrls is a List of urls.
>   // something like {'http://failoverOne/service', 'http://failoverTwo/service'}
>   feature.setStrategy(strategy);
>   List<AbstractFeature> features = new ArrayList<AbstractFeature>();
>   features.add(feature);
>   return features;
> }
> {noformat}
> However, when application run out of failover URLs, it will write to log this:
> {noformat}
> 2014-05-16 09:00:03,473 WARN  [AbstractStaticFailoverStrategy] no alternate targets remain
=> giving up on failover
> 2014-05-16 09:00:03,473 INFO  [FailoverTargetSelector] reverted to original address http://failoverOne/service
> {noformat}
> Is there a way how to tell the failover feature to rotate ALL of the urls, primary URL
included?
> Thanks. 



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