Hi Simon, Thanks for the quick response! I just created https://issues.apache.org/jira/browse/LUCENE-5002.
Sergiusz On Wed, May 15, 2013 at 11:49 PM, Simon Willnauer <simon.willna...@gmail.com> wrote: > This seems like a bug caused due to the fact that we moved the CFS > building into DWPT. Can you open an issue for this? > > simon > > On Wed, May 15, 2013 at 5:50 PM, Sergiusz Urbaniak > <sergiusz.urban...@gmail.com> wrote: >> Hi all, >> >> We have an obvious deadlock between a "MaybeRefreshIndexJob" thread >> calling ReferenceManager.maybeRefresh(ReferenceManager.java:204) and a >> "RebuildIndexJob" thread calling >> IndexWriter.deleteAll(IndexWriter.java:2065). >> >> Lucene tries to flush in the "MaybeRefreshIndexJob" thread while >> simultaneously waiting for the flush in the "RebuildIndexJob" thread >> deadlocked by the intrinsic lock on the IndexWriter instance. >> >> May this be a bug or is it wrong usage? We are not explicitly locking >> on the IndexWriter instance (following the documentation). >> >> Thread-Dump: >> >> "Thread - 1" daemon prio=10 tid=0x00007f8fe4006000 nid=0x1ac2 waiting >> for monitor entry [0x00007f8fa7bf7000] >> java.lang.Thread.State: BLOCKED (on object monitor) >> at >> org.apache.lucene.index.IndexWriter.useCompoundFile(IndexWriter.java:2223) >> - waiting to lock <0x00000000f1c00438> (a >> org.apache.lucene.index.IndexWriter) >> at >> org.apache.lucene.index.DocumentsWriterPerThread.sealFlushedSegment(DocumentsWriterPerThread.java:563) >> at >> org.apache.lucene.index.DocumentsWriterPerThread.flush(DocumentsWriterPerThread.java:533) >> at org.apache.lucene.index.DocumentsWriter.doFlush(DocumentsWriter.java:422) >> at >> org.apache.lucene.index.DocumentsWriter.flushAllThreads(DocumentsWriter.java:559) >> at org.apache.lucene.index.IndexWriter.getReader(IndexWriter.java:365) >> - locked <0x00000000f1c007d0> (a java.lang.Object) >> at >> org.apache.lucene.index.StandardDirectoryReader.doOpenFromWriter(StandardDirectoryReader.java:270) >> at >> org.apache.lucene.index.StandardDirectoryReader.doOpenIfChanged(StandardDirectoryReader.java:245) >> at >> org.apache.lucene.index.StandardDirectoryReader.doOpenIfChanged(StandardDirectoryReader.java:235) >> at >> org.apache.lucene.index.DirectoryReader.openIfChanged(DirectoryReader.java:170) >> at >> org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:118) >> at >> org.apache.lucene.search.SearcherManager.refreshIfNeeded(SearcherManager.java:58) >> at >> org.apache.lucene.search.ReferenceManager.doMaybeRefresh(ReferenceManager.java:155) >> at >> org.apache.lucene.search.ReferenceManager.maybeRefresh(ReferenceManager.java:204) >> at jobs.MaybeRefreshIndexJob.timeout(MaybeRefreshIndexJob.java:47) >> >> "Thread - 2" prio=10 tid=0x00007f903000a000 nid=0x1a38 in >> Object.wait() [0x00007f9037dd6000] >> java.lang.Thread.State: WAITING (on object monitor) >> at java.lang.Object.wait(Native Method) >> - waiting on <0x00000000f1c0c240> (a >> org.apache.lucene.index.DocumentsWriterFlushControl) >> at java.lang.Object.wait(Object.java:503) >> at >> org.apache.lucene.index.DocumentsWriterFlushControl.waitForFlush(DocumentsWriterFlushControl.java:245) >> - locked <0x00000000f1c0c240> (a >> org.apache.lucene.index.DocumentsWriterFlushControl) >> at org.apache.lucene.index.DocumentsWriter.abort(DocumentsWriter.java:235) >> - locked <0x00000000f1c05370> (a >> org.apache.lucene.index.DocumentsWriter) >> at org.apache.lucene.index.IndexWriter.deleteAll(IndexWriter.java:2065) >> - locked <0x00000000f1c00438> (a org.apache.lucene.index.IndexWriter) >> at jobs.RebuildIndexJob.buildIndex(RebuildIndexJob.java:102) >> >> Thanks for any help, >> Sergiusz > > --------------------------------------------------------------------- > 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
