[jira] [Created] (HTTPASYNC-31) There should be a simple way to inject a DNS resolution strategy

["Sebastiano Vigna (JIRA)" <ji...@apache.org>]

Sebastiano Vigna created HTTPASYNC-31:
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             Summary: There should be a simple way to inject a DNS resolution strategy
                 Key: HTTPASYNC-31
                 URL: https://issues.apache.org/jira/browse/HTTPASYNC-31
             Project: HttpComponents HttpAsyncClient
          Issue Type: Improvement
    Affects Versions: 4.0-beta3
            Reporter: Sebastiano Vigna


With DefaultHttpClient it is not difficult to use a custom DNS resolution strategy (e.g., DNSJava) by using a
specialized DefaultConnectionOperator. Doing the same with the asynchronous client presently is very difficult as it requires to create an entirely new connection manager (and the standard implementation uses many package-accessible implementations, so this requires modifying the actual HttpAsyncClient distribution). For a client able to open simultaneously thousands of connections careful DNS management is essential.

Of course it is in principle possible to use a local installation of BIND etc., but it would be nice to be able to do configurable DNS caching in pure Java.

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