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Posted to dev@tika.apache.org by "Enrico Donelli (JIRA)" <ji...@apache.org> on 2011/05/05 09:32:03 UTC

[jira] [Created] (TIKA-654) Resources not properly closed

Resources not properly closed
-----------------------------

                 Key: TIKA-654
                 URL: https://issues.apache.org/jira/browse/TIKA-654
             Project: Tika
          Issue Type: Bug
          Components: parser
    Affects Versions: 1.0
         Environment: Tested on OSX and Linux debian
            Reporter: Enrico Donelli


We have a thread which parser > 200k files, and we always get "too many open files open" error from operating system. Using lsof I noticed tha apache-tika temp files (created by class temporaryFiles) are not really deleted by operating system, even if delete method returns true.
Searching in the code, I found that the problem (which does not manifest with all the files) is probably in TikaInputStream#close method. Here opencontainer is set to null, but in case of opencontainer instance of org.apache.poi.poifs.filesystem.NPOIFSFileSystem the problems disappear if I call close() on opencontainer. I modified the NPOIFSFileSystem class to implement java.io.Closeable, and modified TikaInputStream#close method to make 

	if (openContainer instanceof java.io.Closeable) {
			((java.io.Closeable) openContainer).close();
		}
        openContainer = null;

I don't know if this is the best solution, but it seems to solve the problem for me.

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[jira] [Resolved] (TIKA-654) Resources not properly closed

Posted by "Nick Burch (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/TIKA-654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nick Burch resolved TIKA-654.
-----------------------------

       Resolution: Fixed
    Fix Version/s: 1.0
         Assignee: Nick Burch

> Resources not properly closed
> -----------------------------
>
>                 Key: TIKA-654
>                 URL: https://issues.apache.org/jira/browse/TIKA-654
>             Project: Tika
>          Issue Type: Bug
>          Components: parser
>    Affects Versions: 1.0
>         Environment: Tested on OSX and Linux debian
>            Reporter: Enrico Donelli
>            Assignee: Nick Burch
>             Fix For: 1.0
>
>
> We have a thread which parser > 200k files, and we always get "too many open files open" error from operating system. Using lsof I noticed tha apache-tika temp files (created by class temporaryFiles) are not really deleted by operating system, even if delete method returns true.
> Searching in the code, I found that the problem (which does not manifest with all the files) is probably in TikaInputStream#close method. Here opencontainer is set to null, but in case of opencontainer instance of org.apache.poi.poifs.filesystem.NPOIFSFileSystem the problems disappear if I call close() on opencontainer. I modified the NPOIFSFileSystem class to implement java.io.Closeable, and modified TikaInputStream#close method to make 
> 	if (openContainer instanceof java.io.Closeable) {
> 			((java.io.Closeable) openContainer).close();
> 		}
>         openContainer = null;
> I don't know if this is the best solution, but it seems to solve the problem for me.

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[jira] [Commented] (TIKA-654) Resources not properly closed

Posted by "Nick Burch (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/TIKA-654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13029687#comment-13029687 ] 

Nick Burch commented on TIKA-654:
---------------------------------

I've made NPOIFSFileSystem and OPCPackage closeable in r1100013. That'll be in POI 3.8 beta 3

In r1100015 I've made TikaInputStream close the open container as you suggest, thanks for that. For now you'll need to use a nightly build (or your custom build) of POI to see the effect of that, but it'll kick in properly when 3.8 beta 3 is out.

> Resources not properly closed
> -----------------------------
>
>                 Key: TIKA-654
>                 URL: https://issues.apache.org/jira/browse/TIKA-654
>             Project: Tika
>          Issue Type: Bug
>          Components: parser
>    Affects Versions: 1.0
>         Environment: Tested on OSX and Linux debian
>            Reporter: Enrico Donelli
>             Fix For: 1.0
>
>
> We have a thread which parser > 200k files, and we always get "too many open files open" error from operating system. Using lsof I noticed tha apache-tika temp files (created by class temporaryFiles) are not really deleted by operating system, even if delete method returns true.
> Searching in the code, I found that the problem (which does not manifest with all the files) is probably in TikaInputStream#close method. Here opencontainer is set to null, but in case of opencontainer instance of org.apache.poi.poifs.filesystem.NPOIFSFileSystem the problems disappear if I call close() on opencontainer. I modified the NPOIFSFileSystem class to implement java.io.Closeable, and modified TikaInputStream#close method to make 
> 	if (openContainer instanceof java.io.Closeable) {
> 			((java.io.Closeable) openContainer).close();
> 		}
>         openContainer = null;
> I don't know if this is the best solution, but it seems to solve the problem for me.

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