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From "Ufuk Celebi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-4236) Flink Dashboard stops showing list of uploaded jars if main method cannot be looked up
Date Fri, 05 Aug 2016 08:35:20 GMT

     [ https://issues.apache.org/jira/browse/FLINK-4236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ufuk Celebi updated FLINK-4236:
-------------------------------
    Fix Version/s:     (was: 1.1.0)

> Flink Dashboard stops showing list of uploaded jars if main method cannot be looked up
> --------------------------------------------------------------------------------------
>
>                 Key: FLINK-4236
>                 URL: https://issues.apache.org/jira/browse/FLINK-4236
>             Project: Flink
>          Issue Type: Bug
>          Components: Job-Submission
>    Affects Versions: 1.0.3
>            Reporter: Gary Yao
>
> The Flink Dashboard stops showing the list of uploaded jars on the job submission page
if a jar is uploaded for which the main method cannot be looked up. The HTTP call returns
with code 500. See the attached stacktrace:
> {code}
> java.lang.RuntimeException: Failed to fetch jar list: Could not look up the main(String[])
method from the class de.zalando.[...]]: org/shaded/apache/flink/streaming/api/functions/source/SourceFunction
> at org.apache.flink.runtime.webmonitor.handlers.JarListHandler.handleRequest(JarListHandler.java:122)
> at org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler.respondAsLeader(RuntimeMonitorHandler.java:135)
> at org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler.channelRead0(RuntimeMonitorHandler.java:112)
> at org.apache.flink.runtime.webmonitor.RuntimeMonitorHandler.channelRead0(RuntimeMonitorHandler.java:60)
> at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
> at io.netty.handler.codec.http.router.Handler.routed(Handler.java:62)
> at io.netty.handler.codec.http.router.DualAbstractHandler.channelRead0(DualAbstractHandler.java:57)
> at io.netty.handler.codec.http.router.DualAbstractHandler.channelRead0(DualAbstractHandler.java:20)
> at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
> at org.apache.flink.runtime.webmonitor.HttpRequestHandler.channelRead0(HttpRequestHandler.java:104)
> at org.apache.flink.runtime.webmonitor.HttpRequestHandler.channelRead0(HttpRequestHandler.java:65)
> at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
> at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:242)
> at io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:147)
> at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:339)
> at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:324)
> at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:847)
> at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
> at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
> at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
> at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
> at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
> at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
> at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.RuntimeException: Could not look up the main(String[]) method from
the class de.zalando.[...]]: org/shaded/apache/flink/streaming/api/functions/source/SourceFunction
> at org.apache.flink.client.program.PackagedProgram.hasMainMethod(PackagedProgram.java:479)
> at org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:216)
> at org.apache.flink.client.program.PackagedProgram.<init>(PackagedProgram.java:147)
> at org.apache.flink.runtime.webmonitor.handlers.JarListHandler.handleRequest(JarListHandler.java:103)
> ... 30 more
> Caused by: java.lang.NoClassDefFoundError: org/shaded/apache/flink/streaming/api/functions/source/SourceFunction
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
> at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
> at java.lang.Class.getMethod0(Class.java:3018)
> at java.lang.Class.getMethod(Class.java:1784)
> at org.apache.flink.client.program.PackagedProgram.hasMainMethod(PackagedProgram.java:473)
> ... 33 more
> Caused by: java.lang.ClassNotFoundException: org.shaded.apache.flink.streaming.api.functions.source.SourceFunction
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> ... 39 more
> {code}



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