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Posted to dev@hc.apache.org by "Neil Ferguson (JIRA)" <ji...@apache.org> on 2006/09/13 17:28:23 UTC
[jira] Created: (HTTPCLIENT-599) Not possible to set socket
lingering on with a socket linger time of 0
Not possible to set socket lingering on with a socket linger time of 0
----------------------------------------------------------------------
Key: HTTPCLIENT-599
URL: http://issues.apache.org/jira/browse/HTTPCLIENT-599
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpClient
Affects Versions: 3.0.1
Environment: Windows XP, Sun JVM 1.5.0_07
Reporter: Neil Ferguson
In version 3.0.1 of the Commons HTTP Client it is not possible to set socket lingering on, but with a socket linger time of 0. This may not appear to make much sense, but (certainly with the Sun JVM) this is used to force abortive connection release (see: http://java.sun.com/j2se/1.5.0/docs/guide/net/articles/connection_release.html).
In the org.apache.commons.httpclient.HttpConnection.open() method the following code is what prevents this:
if (linger > 0) {
socket.setSoLinger(linger > 0, linger);
}
I have changed this to:
if (linger >= 0) {
socket.setSoLinger(linger >= 0, linger);
}
However this changes the meaning of the http.socket.linger parameter, so this may not be the preferred solution. Perhaps turning socket lingering on and off needs to be configured independently of the socket linger time.
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[jira] Updated: (HTTPCLIENT-599) Not possible to set socket
lingering on with a socket linger time of 0
Posted by "Oleg Kalnichevski (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HTTPCLIENT-599?page=all ]
Oleg Kalnichevski updated HTTPCLIENT-599:
-----------------------------------------
Fix Version/s: 3.1 Beta 1
Priority: Minor (was: Major)
> Not possible to set socket lingering on with a socket linger time of 0
> ----------------------------------------------------------------------
>
> Key: HTTPCLIENT-599
> URL: http://issues.apache.org/jira/browse/HTTPCLIENT-599
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Affects Versions: 3.0.1
> Environment: Windows XP, Sun JVM 1.5.0_07
> Reporter: Neil Ferguson
> Priority: Minor
> Fix For: 3.1 Beta 1
>
>
> In version 3.0.1 of the Commons HTTP Client it is not possible to set socket lingering on, but with a socket linger time of 0. This may not appear to make much sense, but (certainly with the Sun JVM) this is used to force abortive connection release (see: http://java.sun.com/j2se/1.5.0/docs/guide/net/articles/connection_release.html).
> In the org.apache.commons.httpclient.HttpConnection.open() method the following code is what prevents this:
> if (linger > 0) {
> socket.setSoLinger(linger > 0, linger);
> }
> I have changed this to:
> if (linger >= 0) {
> socket.setSoLinger(linger >= 0, linger);
> }
> However this changes the meaning of the http.socket.linger parameter, so this may not be the preferred solution. Perhaps turning socket lingering on and off needs to be configured independently of the socket linger time.
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[jira] Updated: (HTTPCLIENT-599) Not possible to set socket
lingering on with a socket linger time of 0
Posted by "Oleg Kalnichevski (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HTTPCLIENT-599?page=all ]
Oleg Kalnichevski updated HTTPCLIENT-599:
-----------------------------------------
Fix Version/s: 4.0 Alpha 1
(was: 3.1 Beta 1)
Neil,
I finally had time to look into this issue. It is legitimate that someone may want to set socket linger value to zero in order to cause an abortive connection close. Unfortunately 3.x API does not permit modification of parameters of the underlying socket once the connection has been initialized and it does not make any sense to set linger value to 0 while the connection is still being initialized. It is not possible to resolve the problem without changing the API so the resolution of this issue will have to wait until 4.0.
Oleg
> Not possible to set socket lingering on with a socket linger time of 0
> ----------------------------------------------------------------------
>
> Key: HTTPCLIENT-599
> URL: http://issues.apache.org/jira/browse/HTTPCLIENT-599
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Affects Versions: 3.0.1
> Environment: Windows XP, Sun JVM 1.5.0_07
> Reporter: Neil Ferguson
> Priority: Minor
> Fix For: 4.0 Alpha 1
>
>
> In version 3.0.1 of the Commons HTTP Client it is not possible to set socket lingering on, but with a socket linger time of 0. This may not appear to make much sense, but (certainly with the Sun JVM) this is used to force abortive connection release (see: http://java.sun.com/j2se/1.5.0/docs/guide/net/articles/connection_release.html).
> In the org.apache.commons.httpclient.HttpConnection.open() method the following code is what prevents this:
> if (linger > 0) {
> socket.setSoLinger(linger > 0, linger);
> }
> I have changed this to:
> if (linger >= 0) {
> socket.setSoLinger(linger >= 0, linger);
> }
> However this changes the meaning of the http.socket.linger parameter, so this may not be the preferred solution. Perhaps turning socket lingering on and off needs to be configured independently of the socket linger time.
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