Hi,
I was playing with AsterixDB Query UI. There are 4 options to generate
Output.
query is : let $message := 'Hie'
return $message
When i tried selecting Output format CSV with header. It was throwing Null
pointer exception.
It would be great if someone can help me out to debug this issue.
Here is the Stack trace.
java.lang.NullPointerException
at
edu.uci.ics.asterix.result.ResultUtils.displayCSVHeader(ResultUtils.java:72)
at
edu.uci.ics.asterix.aql.translator.AqlTranslator.handleQuery(AqlTranslator.java:2197)
at
edu.uci.ics.asterix.aql.translator.AqlTranslator.compileAndExecute(AqlTranslator.java:333)
at
edu.uci.ics.asterix.api.http.servlet.APIServlet.doPost(APIServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:546)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:228)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:956)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:411)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:188)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:891)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:114)
at org.eclipse.jetty.server.Server.handle(Server.java:353)
at
org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:598)
at
org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1076)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:805)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)
at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:427)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:510)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.access$000(SelectChannelEndPoint.java:34)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:450)
at java.lang.Thread.run(Thread.java:745)
May 31, 2015 11:02:58 PM edu.uci.ics.asterix.api.http.servlet.APIServlet
doPost
SEVERE: null
java.lang.NullPointerException
at
edu.uci.ics.asterix.result.ResultUtils.displayCSVHeader(ResultUtils.java:72)
at
edu.uci.ics.asterix.aql.translator.AqlTranslator.handleQuery(AqlTranslator.java:2197)
at
edu.uci.ics.asterix.aql.translator.AqlTranslator.compileAndExecute(AqlTranslator.java:333)
at
edu.uci.ics.asterix.api.http.servlet.APIServlet.doPost(APIServlet.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:546)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:483)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:228)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:956)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:411)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:188)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:891)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:114)
at org.eclipse.jetty.server.Server.handle(Server.java:353)
at
org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:598)
at
org.eclipse.jetty.server.HttpConnection$RequestHandler.content(HttpConnection.java:1076)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:805)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)
at org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:427)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:510)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.access$000(SelectChannelEndPoint.java:34)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:450)
at java.lang.Thread.run(Thread.java:745)
--
Chandresh Pancholi
Senior Software Engineer
Flipkart.com
Email-id:[email protected]
Contact:08951803660
