Hi all,
I’m in this exact scenario, the server seems to be sitting, waiting for a
response, but not sending anything else, even after several hours;
is there a resolution to this? Can I set a timeout ? My sequence on the thread
dump:
"Thread-23" daemon prio=10 tid=0x080a9000 nid=0x553e runnable [0xb3dba000]
java.lang.Thread.State: RUNNABLE
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read(BufferedInputStream.java:237)
- locked <0x3c90af40> (a java.io.BufferedInputStream)
at
org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78)
at
org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106)
at
org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116)
at
org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1413)
at
org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973)
at
org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735)
at
org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1098)
at
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
at
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
Thanks
Jim
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Jim Langston
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From: Oleg Kalnichevski [mailto:[email protected]]
Sent: Wednesday, March 24, 2010 11:18 AM
To: HttpClient User Discussion
Cc: Sandeep Khunteta; [email protected]
Subject: Re: Locking problems of SocketInputSteam at
org.apache.commons.httpclient.HttpParser.readRawLine
On Wed, 2010-03-24 at 10:41 +0530, Ruchi Goel wrote:
> Hi,
> We are using commons-httpclient-3.0.jar for one of our yahoo properties.
> The application is running on jetty. In production, we are seeing the lock
> problems as follows :
>
>
> btpool0-11554 runnable
>
> btpool0-11597 is waiting on this thread
>
> btpool0-11614 is waiting on this thread
>
> "btpool0-11554" prio=1 tid=0x0000002c0275f7c0 nid=0x4b62 runnable
> [0x0000000041f4a000..0x0000000041f4dab0]
>
> at java.net.SocketInputStream.socketRead0(Native Method)
>
> at java.net.SocketInputStream.read(SocketInputStream.java:129)
>
> at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
>
> at java.io.BufferedInputStream.read(BufferedInputStream.java:235)
>
> - locked <0x0000002b0835ddf0> (a java.io.BufferedInputStream)
>
> at
> org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:77)
>
> at
> org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:105)
>
> at
> org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1115)
>
> at
> org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1373)
>
> at
> org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1832)
>
> at
> org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1590)
>
> at
> org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:995)
>
> at
> org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:397)
> at
>
> There are many instances of such thread lock areas in the thread dump.
> Any pointers/help appreciated.
>
The thread is blocked in a read operation waiting for input. Apparently
the server is not sending data.
Oleg
> Regards,
> Ruchi
>
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