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From "Martin Meinhold (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1298) Unable to shutdown executor service used by AsynchronousValidator
Date Thu, 17 Jan 2013 04:06:12 GMT
Martin Meinhold created HTTPCLIENT-1298:
-------------------------------------------

             Summary: Unable to shutdown executor service used by AsynchronousValidator
                 Key: HTTPCLIENT-1298
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1298
             Project: HttpComponents HttpClient
          Issue Type: Bug
          Components: Cache
    Affects Versions: 4.2.3
            Reporter: Martin Meinhold


Currently there is no way to tell the CachingHttpClient to shutdown the executor service used
by its AsynchronousValidator. This could lead to a resource leak, but probably only in cases
when the threads weren't reclaimed by the thread pool. So only when it is actually processing
tasks. As long as the thread pool isn't used, it won't create threads.

>From an application life-cycle point of view there should be a way to explicitly tell
the HttpClient to shutdown and release all resources now regardless whether there are any
outstanding validation requests or not.

I have a patch against version 4.2.1 which in fact adds a shutdown() method to the HttpClient
and the AsynchronousValidator. Today I saw, there is already a CloseableHttpClient. So do
you need any contribution to fix this? Looks like there is already a plan for that.

Btw: thanks for already supporting the background validation via the stale-while-revalidate
header.

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