Re: Too many open files

[Nuno Seco]

I have just noticed that I subscribed the wrong list. I meant to 
subscribe and email the Java User List.

Sorry
Nuno Seco wrote:
Hello.

I'm struggling with the following exception:

Exception in thread "Lucene Merge Thread #1037" 
org.apache.lucene.index.MergePolicy$MergeException: 
java.io.FileNotFoundException: 
/home/plopes/aktwise/server-commons/data/lucenedata/_80c.tii (Too many 
open files)
  at 
org.apache.lucene.index.ConcurrentMergeScheduler.handleMergeException(ConcurrentMergeScheduler.java:309) 

  at 
org.apache.lucene.index.ConcurrentMergeScheduler$MergeThread.run(ConcurrentMergeScheduler.java:286) 

Caused by: java.io.FileNotFoundException: 
/home/plopes/aktwise/server-commons/data/lucenedata/_80c.tii (Too many 
open files)


I have only one indexwriter instantiated, and every time i update the 
index (add or remove a document), i commit the indexwriter and run the 
following code in order to make the searcher aware of the new documents:

private synchronized void refreshSearcher() throws 
CorruptIndexException, IOException
  {
      try
      {
          IndexReader reader = 
searcher.getIndexReader().reopen();                                  
searcher.close();
          searcher = new IndexSearcher(reader);

          if (reader != searcher.getIndexReader())
              searcher.getIndexReader().close();                       
      }
      catch (Exception e)
      {
          e.printStackTrace();
      }

  }


I have tried lowering the merge factor and the number of threads by 
executing the following:
((ConcurrentMergeScheduler)writer.getMergeScheduler()).setMaxThreadCount(1); 

writer.setMergeFactor(3);


I am using lucene 2.4.0 and there is only one thread manipulating the 
index.

any help would be appreciated.

Nuno Seco




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