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Jigsaw crashing out

From: Jeremy Johnson <jeremy@yonks.com>
Date: Fri, 26 Mar 1999 13:00:25 -0500 (EST)
Message-Id: <v04003a04b3217b73e871@[194.159.116.126]>
To: www-jigsaw@w3.org
Re my previous posting, servlets are not totally locked up. They will
answer around 5 minutes (!) or more after being requested by the browser.
Sometimes with the correct response and sometimes with a
NullPointerException. After returning a response once they will then do it
again without any delay. Sounds like a cache problem (if there is one) in
Jigsaw?

This is weird, anyone seen this? I'm going to re-install the whole of
Jigsaw and see of that fixes it. Debugging with a 5-10 minute time delay
between requests would be almost impossible.

Jeremy.

>Big problem (maybe), has anyone else seen this?
>
>I've been using Jigsaw for three months+ with no problems like this but
>the server has suddenly decided to stop serving servlets after the first
>request.
>
>If I request a servlet, any servlets, even one which just opens an output
>stream and returns some text, the server throws a NullPointerException
>internally (ie. it doesn't get back to the browser as is usually the case)
>and refuses to serve any more servlets from then until it is restarted.
>
>It will still server static web pages OK.
>
>I'm getting:
>
>java.lang.NullPointerException:
>	at java.io.DataOutputStream.flush(DataOutputStream.java)
>	at org.w3c.jigsaw.http.Client.terminate(Client.java)
>	at org.w3c.jigsaw.http.Client.startConnection(Client.java)
>	at org.w3c.jigsaw.http.Client.SocketClient.run(SocketClient.java)
>	at org.w3c.util.CachedThread.run(ThreadCache.java)
>
>My SQL server (MySQL) is not involved, this happens with Servlets that
>don't 'do' anything apart from return text, as well as much more complex
>ones that have been fine for ages.
>
>The output stream is being closed OK by the Servlet code etc.
>
>The jigadm server is serving fine and the admin applet can be accessed ok.
>
>The server error log contains nothing after the server startup message
>
>This is Jigsaw 2.0.1 running under RedHat Linux 5.2 with JDK 1.1.7a.
>
>Has anyone had this? It's not easy to see how to go about fixing it
>without doing a full re-install.
>
>Jeremy.
Received on Friday, 26 March 1999 13:12:10 GMT

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