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Posted to dev@hc.apache.org by "THIRION Yannick (JIRA)" <ji...@apache.org> on 2009/06/26 23:03:47 UTC
[jira] Created: (HTTPCLIENT-855) DNS Multiple A Support
DNS Multiple A Support
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Key: HTTPCLIENT-855
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-855
Project: HttpComponents HttpClient
Issue Type: Question
Components: HttpClient
Affects Versions: 3.1 Final
Environment: Windows
Reporter: THIRION Yannick
Priority: Minor
I didn't find any documentation on using DNS multiple A with httpclient.
I set up a 2 IP DNS configuration and tried to perform an HTTPS request to this DNS address.
It looks like httpclient does not try to walk through the IPs.
When the first IP connection failed due to connection refused it retryies on the first IP but didn't try to fallback to secondary IP.
Is that the expected behavious?
Note : I'm using a custom SSL handler to support PKCS11 java keystore
Is httpclient compliant with multiple A? If yes, is there any special settings?
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[jira] Resolved: (HTTPCLIENT-855) DNS Multiple A Support
Posted by "Oleg Kalnichevski (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HTTPCLIENT-855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Oleg Kalnichevski resolved HTTPCLIENT-855.
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Resolution: Won't Fix
HttpClient does not provide support for automatic multi-home fail-over on connect failures. A simple fail-over mechanism can be implemented using a custom socket factory such as MultihomePlainSocketFactory shipped with HttpClient 4.0.
http://hc.apache.org/httpcomponents-client/httpclient/xref/org/apache/http/conn/MultihomePlainSocketFactory.html
More complex fail-over scenarios that involve black listing of IP addresses should be implemented on top of HttpClient
Oleg
> DNS Multiple A Support
> ----------------------
>
> Key: HTTPCLIENT-855
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-855
> Project: HttpComponents HttpClient
> Issue Type: Question
> Components: HttpClient
> Affects Versions: 3.1 Final
> Environment: Windows
> Reporter: THIRION Yannick
> Priority: Minor
>
> I didn't find any documentation on using DNS multiple A with httpclient.
> I set up a 2 IP DNS configuration and tried to perform an HTTPS request to this DNS address.
> It looks like httpclient does not try to walk through the IPs.
> When the first IP connection failed due to connection refused it retryies on the first IP but didn't try to fallback to secondary IP.
> Is that the expected behavious?
> Note : I'm using a custom SSL handler to support PKCS11 java keystore
> Is httpclient compliant with multiple A? If yes, is there any special settings?
--
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