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Posted to hdfs-dev@hadoop.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2018/04/19 17:12:00 UTC
[jira] [Created] (HDFS-13485) DataNode WebUI throws NPE
Wei-Chiu Chuang created HDFS-13485:
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Summary: DataNode WebUI throws NPE
Key: HDFS-13485
URL: https://issues.apache.org/jira/browse/HDFS-13485
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode, webhdfs
Affects Versions: 3.0.0
Environment: Kerberized. Hadoop 3.0.0, WebHDFS.
Reporter: Wei-Chiu Chuang
curl -k -i --negotiate -u : "https://hadoop3-4.example.com:20004/webhdfs/v1"
DataNode Web UI should do a better error checking/handling.
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2018-04-19 10:07:49,338 WARN org.apache.hadoop.hdfs.server.datanode.web.webhdfs.WebHdfsHandler: INTERNAL_SERVER_ERROR
java.lang.NullPointerException
at org.apache.hadoop.security.token.Token.decodeWritable(Token.java:364)
at org.apache.hadoop.security.token.Token.decodeFromUrlString(Token.java:383)
at org.apache.hadoop.hdfs.server.datanode.web.webhdfs.ParameterParser.delegationToken(ParameterParser.java:128)
at org.apache.hadoop.hdfs.server.datanode.web.webhdfs.DataNodeUGIProvider.ugi(DataNodeUGIProvider.java:76)
at org.apache.hadoop.hdfs.server.datanode.web.webhdfs.WebHdfsHandler.channelRead0(WebHdfsHandler.java:129)
at org.apache.hadoop.hdfs.server.datanode.web.URLDispatcher.channelRead0(URLDispatcher.java:51)
at org.apache.hadoop.hdfs.server.datanode.web.URLDispatcher.channelRead0(URLDispatcher.java:31)
at com.cloudera.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
at com.cloudera.io.netty.channel.ChannelInboundHandlerAdapter.channelRead(ChannelInboundHandlerAdapter.java:86)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
at com.cloudera.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
at com.cloudera.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
at com.cloudera.io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1379)
at com.cloudera.io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1158)
at com.cloudera.io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1193)
at com.cloudera.io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:489)
at com.cloudera.io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:428)
at com.cloudera.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:265)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
at com.cloudera.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1359)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
at com.cloudera.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
at com.cloudera.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:935)
at com.cloudera.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:138)
at com.cloudera.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645)
at com.cloudera.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
at com.cloudera.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
at com.cloudera.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
at com.cloudera.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at com.cloudera.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
at java.lang.Thread.run(Thread.java:748)
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