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https://issues.apache.org/jira/browse/HTTPCLIENT-1729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15183269#comment-15183269
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Manikandan Subramanian commented on HTTPCLIENT-1729:
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Thanks for the response. Is there any guidance on the how to handle stale
connection checks ?
Quoting the statement from the below developer guide
https://hc.apache.org/httpcomponents-client-ga/tutorial/html/connmgmt.html
"the stale connection check is not 100% reliable. The only feasible solution
that does not involve a one thread per socket model for idle connections is a
dedicated monitor thread used to evict connections that are considered expired
due to a long period of inactivity. The monitor thread can periodically call
ClientConnectionManager#closeExpiredConnections()"
If closeExpiredConnections is not the correct way then, is there is any
guidance on how to handle stale connection checks ?
> Evicting Stale connections from the connection pool
> ---------------------------------------------------
>
> Key: HTTPCLIENT-1729
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1729
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Affects Versions: 4.5.2
> Reporter: Manikandan Subramanian
> Priority: Minor
> Labels: newbie, performance
> Fix For: 4.5.3
>
>
> This is not a bug. But more of a guidance needed here.
> The below documentation suggests
> https://hc.apache.org/httpcomponents-client-ga/tutorial/html/connmgmt.html
> to use a separate monitor thread that calls closeExpiredConnections() method
> for stale connection handling.
> Is this still applicable for 4.5.2 version as well ? I am looking at source
> code PoolingHttpClientConnectionManager#closeExpiredConnections which in turn
> calls the pool#closeExpired.
> The closeExpired method checks only the expiration of the connections.
> However there seems to be no check on whether the connection is stale.
> Should we still handle stale connections checks when using Apache HttpClient
> 4.5 ? What is the guidance here ?
> Minor possible documentation issue
> http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/impl/conn/PoolingHttpClientConnectionManager.html
> The above java doc claims that the default timeout that is used before a
> stale connection check is performed is 5000 ms. However the source code is
> setting the value to 2000ms. Please correct me if I am wrong.
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