[ http://issues.apache.org/jira/browse/NUTCH-211?page=comments#action_12366645 ]
Stefan Groschupf commented on NUTCH-211: ---------------------------------------- Raghavendra, I'm not sure if I also close the linkDB reader, may be I missed that. I will check this later today and may come with a improved version is I missed it. Thanks for catching this. > FetchedSegments leave readers open > ---------------------------------- > > Key: NUTCH-211 > URL: http://issues.apache.org/jira/browse/NUTCH-211 > Project: Nutch > Type: Bug > Versions: 0.8-dev > Reporter: Stefan Groschupf > Assignee: Stefan Groschupf > Priority: Critical > Fix For: 0.8-dev > Attachments: closeFetchSegments.patch > > I have a case here where the NutchBean is instantiated more than once, > however I do cache the nutch bean, but in some situations the bean needs to > re created. The problem is the FetchedSegments leaves open all reads it > uses. So a nio Exception is thrown as soon I try to create the NutchBean > again. > I would suggest to add a close method to FetchedSegments and all involved > objects to be able cleanly shutting down the NutchBean. > Any comments? Would a patch be welcome? > Caused by: java.nio.channels.ClosedChannelException > at sun.nio.ch.FileChannelImpl.ensureOpen(FileChannelImpl.java:89) > at sun.nio.ch.FileChannelImpl.position(FileChannelImpl.java:272) > at > org.apache.nutch.fs.LocalFileSystem$LocalNFSFileInputStream.seek(LocalFileSystem.java:83) > at > org.apache.nutch.fs.NFSDataInputStream$Checker.seek(NFSDataInputStream.java:66) > at > org.apache.nutch.fs.NFSDataInputStream$PositionCache.seek(NFSDataInputStream.java:162) > at > org.apache.nutch.fs.NFSDataInputStream$Buffer.seek(NFSDataInputStream.java:191) > at org.apache.nutch.fs.NFSDataInputStream.seek(NFSDataInputStream.java:241) > at org.apache.nutch.io.SequenceFile$Reader.seek(SequenceFile.java:403) > at org.apache.nutch.io.MapFile$Reader.seek(MapFile.java:329) > at org.apache.nutch.io.MapFile$Reader.get(MapFile.java:374) > at > org.apache.nutch.mapred.MapFileOutputFormat.getEntry(MapFileOutputFormat.java:76) > at > org.apache.nutch.searcher.FetchedSegments$Segment.getEntry(FetchedSegments.java:93) > at > org.apache.nutch.searcher.FetchedSegments$Segment.getParseText(FetchedSegments.java:84) > at > org.apache.nutch.searcher.FetchedSegments.getSummary(FetchedSegments.java:147) > at org.apache.nutch.searcher.NutchBean.getSummary(NutchBean.java:321) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
