Populating exception message with InetSocketAddress.getHostName() can take a
long time
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Key: HTTPCLIENT-1098
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1098
Project: HttpComponents HttpClient
Issue Type: Improvement
Components: HttpConn
Affects Versions: 4.1.1
Reporter: Thomas Boettcher
Attachments: exception_message.txt
In the PlainSocketFactory class, when a SocketTimeoutException occurs a call is
made to InetSocketAddress.getHostName() when generating the exception message.
Unfortunately, this call can take a long time. In my case, the address I am
specifying is an IP address, which InetSocketAddress attempts to perform a
reverse-lookup on to determine the hostname; however, since the address does
not have a hostname assigned to it, the operation takes a long time to return.
I'm attaching a patch for trunk with my proposed fix. Viewing the source
history, it looks like the code used to have the behavior I'm proposing, but it
was changed in revision 1070943. Based on the source commits and linked issues,
I cannot determine a specific reason for the change. If there is a reason the
code needs to be the way it is, then I apologize for inconvenience I have
caused.
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