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https://issues.apache.org/jira/browse/HDFS-1102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12858748#action_12858748
]
sam rash commented on HDFS-1102:
--------------------------------
the log entry in the datanode:
2010-04-19 16:42:59,072 ERROR org.mortbay.log: /streamFile
java.nio.channels.CancelledKeyException
at sun.nio.ch.SelectionKeyImpl.ensureValid(SelectionKeyImpl.java:55)
at sun.nio.ch.SelectionKeyImpl.interestOps(SelectionKeyImpl.java:59)
at
org.mortbay.io.nio.SelectChannelEndPoint.updateKey(SelectChannelEndPoint.java:324)
at
org.mortbay.io.nio.SelectChannelEndPoint.blockWritable(SelectChannelEndPoint.java:278)
at
org.mortbay.jetty.AbstractGenerator$Output.blockForOutput(AbstractGenerator.java:542)
at
org.mortbay.jetty.AbstractGenerator$Output.flush(AbstractGenerator.java:569)
at
org.mortbay.jetty.HttpConnection$Output.flush(HttpConnection.java:946)
at
org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:646)
at
org.mortbay.jetty.AbstractGenerator$Output.write(AbstractGenerator.java:577)
at
org.apache.hadoop.hdfs.server.namenode.StreamFile.doGet(StreamFile.java:73)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1124)
at
org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:669)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1115)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:361)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:417)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:533)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:207)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522)
> HftpFileSystem : errors during transfer result in truncated transfer
> --------------------------------------------------------------------
>
> Key: HDFS-1102
> URL: https://issues.apache.org/jira/browse/HDFS-1102
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node, hdfs client
> Affects Versions: 0.20.1
> Reporter: sam rash
>
> If an error occurs transferring the data over HTTP, the HftpInputStream does
> not know it received fewer bytes than the file contains. We can at least
> detect this and throw an EOFException when this occurs.
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