It's not safe for you to synchronize externally on the Directory
instance returned from FSDirectory.getDirectory -- that's leading
to the deadlock here right?
It looks like you passed in a File or String to IndexReader.open? One
workaround (I think -- not tested) might be to pass Directory
instead.
Mike
MakMak wrote:
Hi,
I have the following :
Thread1 ----
1. Acquires a lock on FSDirectory.getDirectory (not right, not
needed, but
should not be harmful anyway)
2. Issues an IndexReader.reopen() to open the reader and search.
This call
waits on acquiring a MultiSegmentReader lock.
Thread2 -----
1. Issues prevIndexReader.close() which locks a MultiSegmentReader
and then
goes ahead and waits on a lock for FSDirectory
Actual code:
Thread 1->
at
org
.apache
.lucene.index.DirectoryIndexReader.reopen(DirectoryIndexReader.java:
85)
- waiting to lock <0xfffffffecaba1638> (a
org.apache.lucene.index.MultiSegmentReader)
at
com.sample.search.LuceneEngine.getIndexReader(LuceneEngine.java:505)
at
com.sample.search.LuceneEngine.doContractSearch(LuceneEngine.java:480)
at com.sample.search.LuceneEngine.doSearch(LuceneEngine.java:
458)
- locked <0xfffffffe43ad06e0> (a
org.apache.lucene.store.FSDirectory)
at
com
.sample
.search.FileSearchManager.doSearch(AttachmentSearchManager.java:117)
at
com
.sample.search.FileSearchFilter.<init>(AttachmentSearchFilter.java:70)
Thread2->
at org.apache.lucene.store.FSDirectory.close(FSDirectory.java:
480)
- waiting to lock <0xfffffffe43ad06e0> (a
org.apache.lucene.store.FSDirectory)
at
org
.apache
.lucene.index.DirectoryIndexReader.doClose(DirectoryIndexReader.java:
164)
at
org
.apache
.lucene.index.MultiSegmentReader.doClose(MultiSegmentReader.java:411)
- locked <0xfffffffecaba1638> (a
org.apache.lucene.index.MultiSegmentReader)
at
org.apache.lucene.index.IndexReader.decRef(IndexReader.java:124)
- locked <0xfffffffecaba1638> (a
org.apache.lucene.index.MultiSegmentReader)
at org.apache.lucene.index.IndexReader.close(IndexReader.java:
832)
- locked <0xfffffffecaba1638> (a
org.apache.lucene.index.MultiSegmentReader)
at com.sample.search.Engine.getIndexReader(LuceneEngine.java:
508)
at
com.sample.search.Engine.findMatchingFragments(LuceneEngine.java:521)
--
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