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https://issues.apache.org/jira/browse/HTTPCLIENT-2314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17803638#comment-17803638
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Philip Helger commented on HTTPCLIENT-2314:
-------------------------------------------
Okay, I stirred in my old logs and the error occurs for me (every now and then)
since 19.08.2022, so it has nothing to do with 5.2 or so. This was the first
time I used httpclient 5.1.3 (after upgrading from 4.5.13).
It's just that since December 2023 it occurs so often that it became annoying
and I started digging into it ;)
> IllegalStateException: Endpoint is not connected
> ------------------------------------------------
>
> Key: HTTPCLIENT-2314
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2314
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient (classic)
> Affects Versions: 5.2, 5.3
> Reporter: Philip Helger
> Priority: Major
> Attachments: debuglog-httpclient-2314.txt
>
>
> Using `PoolingHttpClientConnectionManager`, under high traffic situations it
> occurs consistently that the exception "Endpoint is not connected" is invoked.
>
> The full stacktrace looks like this:
> {{Caused by: java.lang.IllegalStateException: Endpoint is not connected}}
> {{ at org.apache.hc.core5.util.Asserts.check(Asserts.java:38)
> ~[httpcore5-5.2.4.jar:5.2.4]}}
> {{ at
> org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager$InternalConnectionEndpoint.getValidatedPoolEntry(PoolingHttpClientConnectionManager.java:664)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager$InternalConnectionEndpoint.setSocketTimeout(PoolingHttpClientConnectionManager.java:697)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.InternalExecRuntime.execute(InternalExecRuntime.java:211)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.MainClientExec.execute(MainClientExec.java:116)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ConnectExec.execute(ConnectExec.java:188)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ProtocolExec.execute(ProtocolExec.java:192)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.HttpRequestRetryExec.execute(HttpRequestRetryExec.java:113)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ContentCompressionExec.execute(ContentCompressionExec.java:152)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.RedirectExec.execute(RedirectExec.java:116)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.InternalHttpClient.doExecute(InternalHttpClient.java:170)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.CloseableHttpClient.execute(CloseableHttpClient.java:245)
> ~[httpclient5-5.3.jar:5.3]}}
> {{ at
> org.apache.hc.client5.http.impl.classic.CloseableHttpClient.execute(CloseableHttpClient.java:188)
> ~[httpclient5-5.3.jar:5.3]}}
>
> Unfortunately I don't have a standalone example to reproduce it.
> Any suggestions for a workaround????
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