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https://issues.apache.org/jira/browse/HTTPCLIENT-2180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17422207#comment-17422207
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Oleg Kalnichevski commented on HTTPCLIENT-2180:
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[~ggregory] We can consider replacing our connection pooling code with
{{Commons Pool}} or any other library, but first off we need to decide whether
or not we are prepared to discontinue support for stateful connections (such as
NTLM and KERBEROS authenticated). Secondly, someone should be willing to do all
the leg work migrating our code to that library. It is not going to be a small
feat.
Oleg
> Pre-init minimum number of connections
> --------------------------------------
>
> Key: HTTPCLIENT-2180
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2180
> Project: HttpComponents HttpClient
> Issue Type: New Feature
> Components: HttpClient (async), HttpClient (classic)
> Reporter: Anurag Agarwal
> Priority: Minor
> Labels: volunteers-wanted
> Fix For: Future
>
>
> Most of the applications suffer from a problem of cold start where we don't
> have connections created at the start of the application and thus the first
> few requests suffer by making a lot of connections.
> During deployment this can even pile up a lot of not completed request and
> may lead to losses.
> One suggestion I had in mind is to create few connections before the
> application has begun from the intended endpoints.
> Also sometimes the nautre of your traffic can be spiky in which scenario
> opening and closing a lot of connections also doesn't make sense.
>
> These can be solved with either or both of the suggestions:
> # Have a minConnectionPerHost policy in connection pool which won't let
> connection pool for a host to go below this number or make a new connection
> when it does. At the start of the http client these minimum connections will
> be created to the end services.
> # Provide an easy mechanism for use to create connections via
> ConnectionManager. Currently in PoolingAsyncConnectionManager one must give
> ConnectionInitiator which make it difficult to directly use the connection
> manager to create connections.
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