[Exist-open] XMLDBException: Server returned HTTP repsonse code 503 - how to debug?

[Florian S. <ml-...@fl...>]

Hi,

i'm using a eXist db (ver. 1.2.4-rev:8072-20080802) deployed inside a
tomcat server. From time to time, trying to access the server using the
java admin client fails with a XMLDBException. I can't find any relevant
information in the server logs, and the (eXist) server status (checked
via the web frontend) seems to be ok, too (same for tomcat). I'm not
very familiar with the logging configuration of eXist, so it may be
helfful already if someone could help me how to debug that error.

Here's the stacktrace:

org.xmldb.api.base.XMLDBException: An IO error occurred: Server returned
HTTP response code: 503 for URL:
http://tomcatapp.xxxxyyyyyzzzzz:8080/exist/xmlrpc
	at
org.exist.xmldb.RemoteCollection.readCollection(RemoteCollection.java:395)
	at
org.exist.xmldb.RemoteCollection.listChildCollections(RemoteCollection.java:293)
	at
org.exist.client.InteractiveClient.getResources(InteractiveClient.java:314)
	at org.exist.client.InteractiveClient.run(InteractiveClient.java:2135)
	at org.exist.client.InteractiveClient.main(InteractiveClient.java:249)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javaws.Launcher.executeApplication(Unknown Source)
	at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
	at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
	at com.sun.javaws.Launcher.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: Server returned HTTP response code: 503
for URL: http://tomcatapp.intranet.bvg:8080/exist/xmlrpc
	at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java:444)
	at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:163)
	at
org.exist.xmldb.RemoteCollection.readCollection(RemoteCollection.java:391)
	... 13 more
Caused by: java.io.IOException: Server returned HTTP response code: 503
for URL: http://tomcatapp.intranet.bvg:8080/exist/xmlrpc
	at org.apache.xmlrpc.XmlRpcClient$Worker.execute(XmlRpcClient.java:444)
	at org.apache.xmlrpc.XmlRpcClient.execute(XmlRpcClient.java:163)
	at
org.exist.xmldb.RemoteCollection.readCollection(RemoteCollection.java:391)
	at
org.exist.xmldb.RemoteCollection.listChildCollections(RemoteCollection.java:293)
	at
org.exist.client.InteractiveClient.getResources(InteractiveClient.java:314)
	at org.exist.client.InteractiveClient.run(InteractiveClient.java:2135)
	at org.exist.client.InteractiveClient.main(InteractiveClient.java:249)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at com.sun.javaws.Launcher.executeApplication(Unknown Source)
	at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
	at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
	at com.sun.javaws.Launcher.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


TIA
florian