[ https://issues.apache.org/jira/browse/HDFS-13485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HDFS-13485 started by Siyao Meng. ----------------------------------------- > DataNode WebHDFS endpoint 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 > Assignee: Siyao Meng > Priority: Minor > > curl -k -i --negotiate -u : "https://hadoop3-4.example.com:20004/webhdfs/v1" > DataNode Web UI should do a better error checking/handling. > {noformat} > 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) > {noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org