>From an architecture standpoint, wait/notify does require extra logic to catch >any notify calls while a searcher is being replaced. Using interrupt() was >quite convenient at insuring the searcher was up-to-date.
----- Original Message ---- From: Simon Willnauer <simon.willna...@googlemail.com> To: java-user@lucene.apache.org Sent: Thu, April 8, 2010 4:53:08 PM Subject: Re: ClosedChannelException from IndexWriter.getReader() Argh! one more running into this issue. It still bugs me that NIOFSDirectory struggles so badly if interrupt is used. simon On Thu, Apr 8, 2010 at 11:19 PM, Justin <cry...@yahoo.com> wrote: > We have a custom IndexSearcher that fetches a near real-time reader and calls > FieldCache.DEFAULT.getStrings() after a calculated length of time or when > certain changes are made to the index (requiring immediate searchability). > The thread slept for that length of time unless an interrupt was given. > wait/notify should accomplish the same without interrupting NIOFSDirectory. > > > > > ----- Original Message ---- > From: Michael McCandless <luc...@mikemccandless.com> > To: java-user@lucene.apache.org > Sent: Thu, April 8, 2010 3:50:41 PM > Subject: Re: ClosedChannelException from IndexWriter.getReader() > > OK, phew :) > > Yea warming in a separate thread is common... but why does > Thread.interrupt() come into play in your app for warming? > > Mike > > On Thu, Apr 8, 2010 at 4:38 PM, Justin <cry...@yahoo.com> wrote: >> In fact, we are using Thread.interrupt() to warm up a searcher in a separate >> thread (not really that uncommon, is it?). We may switch to >> Object::wait(long) and Object::notify() instead of switching the Directory >> implementation. Thanks for recognizing the issue! >> >> >> >> >> ----- Original Message ---- >> From: Michael McCandless <luc...@mikemccandless.com> >> To: java-user@lucene.apache.org >> Sent: Thu, April 8, 2010 2:41:07 PM >> Subject: Re: ClosedChannelException from IndexWriter.getReader() >> >> Are you using Future.cancel or directly using Thread.interrupt? If so >> it could be this nasty issue: >> >> https://issues.apache.org/jira/browse/LUCENE-2239 >> >> Try temporarily using a Directory impl other than NIOFSDirectory and >> see if the problem still happens? >> >> Mike >> >> On Thu, Apr 8, 2010 at 2:14 PM, Justin <cry...@yahoo.com> wrote: >>> I'm getting a ClosedChannelException from IndexWriter.getReader(). I don't >>> think the writer has been closed and, if it were, I would expect an >>> AlreadyClosedException as described in the API documentation. Does anyone >>> have an idea what might be wrong? The disk is not full and the permissions >>> look correct. >>> >>> Here the stack trace from revision 926791: >>> >>> java.nio.channels.ClosedChannelException >>> at sun.nio.ch.FileChannelImpl.ensureOpen(FileChannelImpl.java:88) >>> at sun.nio.ch.FileChannelImpl.read(FileChannelImpl.java:613) >>> at >>> org.apache.lucene.store.NIOFSDirectory$NIOFSIndexInput.readInternal(NIOFSDirectory.java:150) >>> at >>> org.apache.lucene.store.BufferedIndexInput.readBytes(BufferedIndexInput.java:139) >>> at >>> org.apache.lucene.index.CompoundFileReader$CSIndexInput.readInternal(CompoundFileReader.java:257) >>> at >>> org.apache.lucene.store.BufferedIndexInput.refill(BufferedIndexInput.java:160) >>> at >>> org.apache.lucene.store.BufferedIndexInput.readByte(BufferedIndexInput.java:39) >>> at org.apache.lucene.store.IndexInput.readInt(IndexInput.java:74) >>> at org.apache.lucene.index.FieldsReader.<init>(FieldsReader.java:114) >>> at >>> org.apache.lucene.index.SegmentReader$CoreReaders.openDocStores(SegmentReader.java:294) >>> at >>> org.apache.lucene.index.SegmentReader.openDocStores(SegmentReader.java:590) >>> at >>> org.apache.lucene.index.IndexWriter$ReaderPool.get(IndexWriter.java:640) >>> at >>> org.apache.lucene.index.IndexWriter$ReaderPool.getReadOnlyClone(IndexWriter.java:591) >>> at >>> org.apache.lucene.index.DirectoryReader.<init>(DirectoryReader.java:138) >>> at >>> org.apache.lucene.index.ReadOnlyDirectoryReader.<init>(ReadOnlyDirectoryReader.java:36) >>> at >>> org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:423) >>> at >>> org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:387) >>> >>> Thanks, >>> Justin >>> >>> >>> >>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
