this is on local file system on amazon ec2 host. the file system was fine until a week ago when the outage happened and there were probably some system glitches. i have seen this issue since then.. sometimes regular commands like less or ls hang for many seconds even though there is no cpu/memory pressure on the machine.
in my case, there are only 2 unique entries for which i see this error. one for a .fdt file and one for a .tis file. is it possible to regenerate those files somehow? if i delete those 2 files, will the entire index get corrupted? im ok to live with some data loss if it makes it more stable and performant. thanks On Mon, Jul 9, 2012 at 2:28 AM, Ian Lea <ian....@gmail.com> wrote: > Is this on a local or remote file system? Is the file system itself > OK? Is something else messing with your lucene index at the same > time? > > > -- > Ian. > > > On Sun, Jul 8, 2012 at 8:58 PM, T Vinod Gupta <tvi...@readypulse.com> > wrote: > > Hi, > > My log files are showing the below exceptions almost at twice a minute > > frequency. what is causing it and how can i fix it? I am not using lucene > > directly but instead using elasticsearch (0.18.7 version). but since the > > stack trace is all lucene, i am sending it to this mailing list. > > > > also, my queries are taking a long time to execute (sometimes take a > > minute). could this be contributing to it somehow? > > > > [2012-07-08 19:44:19,887][WARN ][index.merge.scheduler ] [<my node > > name>] [twitter][4] failed to merge > > java.io.IOException: Input/output error: > > NIOFSIndexInput(path="/media/ephemeral0 > > /ES_data/elasticsearch/nodes/0/indices/twitter/4/index/_2h29k.tis") > > at > > org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(N > > IOFSDirectory.java:180) > > at > > org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput. > > java:229) > > at > > > org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:39) > > at org.apache.lucene.store.DataInput.readVInt(DataInput.java:105) > > at > > > org.apache.lucene.store.BufferedIndexInput.readVInt(BufferedIndexInput.java:197) > > at org.apache.lucene.index.TermBuffer.read(TermBuffer.java:86) > > at > > org.apache.lucene.index.SegmentTermEnum.next(SegmentTermEnum.java:133) > > at > > org.apache.lucene.index.SegmentMergeInfo.next(SegmentMergeInfo.java:72) > > at > > > org.apache.lucene.index.SegmentMerger.mergeTermInfos(SegmentMerger.java:546) > > at > > org.apache.lucene.index.SegmentMerger.mergeTerms(SegmentMerger.java:473) > > at > > org.apache.lucene.index.SegmentMerger.merge(SegmentMerger.java:109) > > at > > org.apache.lucene.index.IndexWriter.mergeMiddle(IndexWriter.java:4295) > > at > org.apache.lucene.index.IndexWriter.merge(IndexWriter.java:3940) > > at > > > org.apache.lucene.index.ConcurrentMergeScheduler.doMerge(ConcurrentMergeScheduler.java:388) > > at > > > org.apache.lucene.index.TrackingConcurrentMergeScheduler.doMerge(TrackingConcurrentMergeScheduler.java:88) > > at > > > org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:456) > > Caused by: java.io.IOException: Input/output error > > at sun.nio.ch.FileDispatcher.pread0(Native Method) > > at sun.nio.ch.FileDispatcher.pread(FileDispatcher.java:49) > > at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:248) > > at sun.nio.ch.IOUtil.read(IOUtil.java:224) > > at sun.nio.ch.FileChannelImpl.read(FileChannelImpl.java:663) > > at > > > org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:162) > > ... 15 more > > > > thanks > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > >
