[HIVE-8525] Add jasper-compiler-jdt runtime dependency to hwi

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.13.1
• Component/s: Web UI
• Assignee: Unassigned
• Reporter: Peter Slawski
• Created: 20/Oct/14 22:39
• Updated: 24/May/15 07:47

Description

Without the jasper-compiler-jdt*.jar in hive/lib, the HWI service cannot compile jsp files.

I've also noticed that this is mentioned in HIVE-5132 and HIVE-6912 in order to get HWI working. But, no code change or documentation were made in light of this.

It seems reasonable to include jasper-compiler-jdt as a dependency in hwi/pom.xml. Are there any reasons not to do so?

------
I had to do the following to reproduce this error:

1. Generate war file (HIVE-8400)
2. Fix bin/ext/hwi.sh script to make HWI_WAR_FILE be relative to HIVE_HOME
3. Run `hive --service hwi`
4. Go to http://localhost:9999/hwi/
5. A 500 Error appears:

HTTP ERROR 500

Problem accessing /hwi/. Reason:

    Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.
It is currently set to "/usr/java/jdk1.7.0_65/jre"

Caused by:

Unable to find a javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.
It is currently set to "/usr/java/jdk1.7.0_65/jre"
	at org.apache.tools.ant.taskdefs.compilers.CompilerAdapterFactory.getCompiler(CompilerAdapterFactory.java:129)
	at org.apache.tools.ant.taskdefs.Javac.findSupportedFileExtensions(Javac.java:979)
	at org.apache.tools.ant.taskdefs.Javac.scanDir(Javac.java:956)
	at org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:927)
	at org.apache.jasper.compiler.AntCompiler.generateClass(AntCompiler.java:220)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
	at org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
	at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:299)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
	at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:327)
	at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
	at org.mortbay.jetty.servlet.DefaultServlet.doGet(DefaultServlet.java:503)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:326)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
	at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Issue Links

• is related to: HIVE-5132 Can't access to hwi due to "No Java compiler available"
• is related to: HIVE-6912 HWI not working - HTTP ERROR 500