lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Aaron McCurry <amccurry.luc...@gmail.com>
Subject Re: Lucene 2.9.0 leaves too many .cfs files open, causing too many files open java error.
Date Sun, 18 Oct 2009 15:26:38 GMT
I also have seen this problem recently.  I had to make a patch to our  
production system to at least relief the system of the deleted files  
handles.  I did it by capturing all of the Descriptors that the  
FileInputIndex object creates and monitoring if the file it references  
still exists or not.  If it doesn't I then try and close the  
Descriptors.  I know that this is a hack, but it was needed ASAP, and  
I couldn't find in my code anywhere where I wasn't closing the opened  
indexreaders or indexwriters.

Aaron


On Oct 18, 2009, at 11:14 AM, GlenAbbeyDrive wrote:

>
> I switched from Lucene 2.4.0 to the latest 2.9.0 version and got too  
> many
> files open within a few hours from my indexing process.  Our  
> indexing Java
> process adds about 2000 documents/minute.
> The IndexWriter (iw) has the following settings:
>
>            iw.setMaxFieldLength(1024*1024*1024); // 1G as maximum  
> terms.
>            iw.setMergeFactor(10);
>            iw.setMaxMergeDocs(100000);
>            iw.setMaxBufferedDocs(1000);
>            iw.setRAMBufferSizeMB(128);
>            iw.setUseCompoundFile(true);
>
>
>
> The 'lsof' result shows rapidly growing number of open files in  
> 'deleted'
> state. Counting the number of these:
>
> [server-1]#date
> Sun Oct 18 11:02:37 EDT 2009
> [server-1]# lsof -p 19606 |grep deleted  |wc -l
> 3187
> [server-1]# date
> Sun Oct 18 11:07:29 EDT 2009
> [server-1]# lsof -p 19606 |grep deleted  |wc -l
> 3912
>
> Here is a sample of those open files left behind in 'deleted' state:
>
> java    19606 root 1861r   REG       8,17    273561 368673054
> /archive/index/_5fq.cfs (deleted)
> java    19606 root 1862r   REG       8,17      9428 368673053
> /archive/index/_5fp.cfs (deleted)
> java    19606 root 1863r   REG       8,17    363690 368673052
> /archive/index/_5fo.cfs (deleted)
> java    19606 root 1864r   REG       8,17     47732 368673051
> /archive/index/_5fn.cfs (deleted)
> java    19606 root 1865r   REG       8,17    417453 368673050
> /archive/index/_5fm.cfs (deleted)
> java    19606 root 1866r   REG       8,17   1518126 368673049
> /archive/index/_5fl.cfs (deleted)
> java    19606 root 1871r   REG       8,17   1236023 368673057
> /archive/index/_5ft.cfs (deleted)
> java    19606 root 1872r   REG       8,17     29743 368673055
> /archive/index/_5fr.cfs (deleted)
> java    19606 root 1873r   REG       8,17    273561 368673054
> /archive/index/_5fq.cfs (deleted)
> java    19606 root 1874r   REG       8,17      9428 368673053
> /archive/index/_5fp.cfs (deleted)
> java    19606 root 1875r   REG       8,17    363690 368673052
> /archive/index/_5fo.cfs (deleted)
> java    19606 root 1876r   REG       8,17     47732 368673051
> /archive/index/_5fn.cfs (deleted)
> java    19606 root 1877r   REG       8,17    417453 368673050
> /archive/index/_5fm.cfs (deleted)
> java    19606 root 1878r   REG       8,17   1518126 368673049
> /archive/index/_5fl.cfs (deleted)
> java    19606 root 1883r   REG       8,17   1389856 368673056
> /archive/index/_5fs.cfs (deleted)
> java    19606 root 1884r   REG       8,17     29743 368673055
> /archive/index/_5fr.cfs (deleted)
> java    19606 root 1885r   REG       8,17    273561 368673054
> /archive/index/_5fq.cfs (deleted)
> java    19606 root 1886r   REG       8,17      9428 368673053
> /archive/index/_5fp.cfs (deleted)
> java    19606 root 1887r   REG       8,17    363690 368673052
> /archive/index/_5fo.cfs (deleted)
> java    19606 root 1888r   REG       8,17     47732 368673051
> /archive/index/_5fn.cfs (deleted)
> java    19606 root 1889r   REG       8,17    417453 368673050
> /archive/index/_5fm.cfs (deleted)
> java    19606 root 1890r   REG       8,17   1518126 368673049
> /archive/index/_5fl.cfs (deleted)
> java    19606 root 1895r   REG       8,17   1389856 368673056
> /archive/index/_5fs.cfs (deleted)
> java    19606 root 1896r   REG       8,17     29743 368673055
> /archive/index/_5fr.cfs (deleted)
> java    19606 root 1897r   REG       8,17    273561 368673054
> /archive/index/_5fq.cfs (deleted)
> java    19606 root 1898r   REG       8,17      9428 368673053
> /archive/index/_5fp.cfs (deleted)
> java    19606 root 1899r   REG       8,17    363690 368673052
> /archive/index/_5fo.cfs (deleted)
> java    19606 root 1900r   REG       8,17     47732 368673051
> /archive/index/_5fn.cfs (deleted)
> java    19606 root 1901r   REG       8,17    417453 368673050
> /archive/index/_5fm.cfs (deleted)
> java    19606 root 1902r   REG       8,17   1518126 368673049
> /archive/index/_5fl.cfs (deleted)
> java    19606 root 1910r   REG       8,17    403610 368673058
> /archive/index/_5fu.cfs (deleted)
> java    19606 root 1911r   REG       8,17   1236023 368673057
> /archive/index/_5ft.cfs (deleted)
> java    19606 root 1912r   REG       8,17   1389856 368673056
> /archive/index/_5fs.cfs (deleted)
> java    19606 root 1913r   REG       8,17     29743 368673055
> /archive/index/_5fr.cfs (deleted)
> java    19606 root 1914r   REG       8,17    273561 368673054
> /archive/index/_5fq.cfs (deleted)
> java    19606 root 1915r   REG       8,17      9428 368673053
> /archive/index/_5fp.cfs (deleted)
> java    19606 root 1916r   REG       8,17    363690 368673052
> /archive/index/_5fo.cfs (deleted)
> java    19606 root 1917r   REG       8,17     47732 368673051
> /archive/index/_5fn.cfs (deleted)
> java    19606 root 1918r   REG       8,17    417453 368673050
> /archive/index/_5fm.cfs (deleted)
> java    19606 root 1919r   REG       8,17   1518126 368673049
> /archive/index/_5fl.cfs (deleted)
>
>
> -- 
> View this message in context: http://www.nabble.com/Lucene-2.9.0-leaves-too-many-.cfs-files-open%2C-causing-too-many-files-open-java-error.-tp25947462p25947462.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
> For additional commands, e-mail: java-user-help@lucene.apache.org
>


---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-user-help@lucene.apache.org


Mime
View raw message