I have set up an application in Openshift. This application has a
Tomcat 7 (JBoss EWS 2.0) cartridge. I deploy Web applications to it by
sending the WAR with an SFTP client. This is a very simple configuration that
would be straightforward to set up in Openshift.
Inside a servlet, I start a BaseX
server so that the servlets in this application can use it as clients.I start
it by calling the following instructions, which work as expected:
String folder = System.getenv("OPENSHIFT_DATA_DIR"); if (folder == null) folder
= System.getProperty("user.home"); System.setProperty("org.basex.path", folder);
if (false == BaseXServer.ping(host, 15000)) {
server = new BaseXServer("-p15000", "-e15001", "-n" +
System.getenv("OPENSHIFT_JBOSSEWS_IP"));
}
(Notice that the environment variable "OPENSHIFT_DATA_DIR" indicates the data
directory of the Openshift application, where BaseX should store databases.
With this property set, the database path, the repository path and the
configuration files are all automatically placed relative to this path. I ping
the server to see if it is already running; if not, I start it. Notice that I
start the server in port 15000 (event handling port 15001), because these ports
are available in Openshift. Also, the server is bound to the IP indicated by
the environment variable OPENSHIFT_JBOSSEWS_IP, which is the internal IP in my
application.)
The problem is that I can't close this server. When I call server.stop(), a
"Connection refused" error occurs. I thought this could be a bug, but this may
also be specific to
Openshift, because I don't get this error when I execute this simple
example in my home computer. Here is the stacktrace:
Mar 05, 2014 8:19:33 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [NewServlet] in context with path
[/basextest] threw exception
java.net.ConnectException: Connection refused at
java.net.PlainSocketImpl.socketConnect(Native Method) at
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at
java.net.Socket.connect(Socket.java:579) at
java.net.Socket.connect(Socket.java:528) at
java.net.Socket.<init>(Socket.java:425) at
java.net.Socket.<init>(Socket.java:208) at
org.basex.BaseXServer.stop(BaseXServer.java:333) at
org.basex.BaseXServer.<init>(BaseXServer.java:93) at
org.basex.BaseXServer.<init>(BaseXServer.java:65) at
x.NewServlet.processRequest(NewServlet.java:112) at
x.NewServlet.doGet(NewServlet.java:128) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:621) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:728) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
Thank you in advance.
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