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Tika - 超出 memory 异常

[英]Tika - Out Of memory Exception

I have been working on Tika to extract text contents only from various files.我一直在研究Tika以仅从各种文件中提取文本内容。 I found a peculiar issue when I was parsing a doc file with images inside.我在解析包含图像的 doc 文件时发现了一个特殊问题。 The Image fetcher was called and it threw java.lang.OutOfMemoryError: Java heap space .调用 Image fetcher 并抛出java.lang.OutOfMemoryError: Java heap space

I was trying the same in tika-app 1.22 gui and was getting the following exceptions:我在tika-app 1.22 gui中尝试了相同的操作,但遇到了以下异常:

Exception in thread "Image Fetcher 2" java.lang.OutOfMemoryError: Java heap space
    at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:75)
    at java.awt.image.Raster.createPackedRaster(Raster.java:467)
    at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1032)
    at sun.awt.image.ImageRepresentation.createBufferedImage(ImageRepresentation.java:253)
    at sun.awt.image.ImageRepresentation.setPixels(ImageRepresentation.java:559)
    at sun.awt.image.ImageDecoder.setPixels(ImageDecoder.java:138)
    at sun.awt.image.PNGImageDecoder.sendPixels(PNGImageDecoder.java:549)
    at sun.awt.image.PNGImageDecoder.produceImage(PNGImageDecoder.java:470)
    at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:269)
    at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:205)
    at sun.awt.image.ImageFetcher.run(ImageFetcher.java:169)
Exception in thread "Image Fetcher 0" java.lang.OutOfMemoryError: Java heap space
    at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:75)
    at java.awt.image.Raster.createPackedRaster(Raster.java:467)
    at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1032)
    at sun.awt.image.ImageRepresentation.createBufferedImage(ImageRepresentation.java:253)
    at sun.awt.image.ImageRepresentation.setPixels(ImageRepresentation.java:559)
    at sun.awt.image.ImageDecoder.setPixels(ImageDecoder.java:138)
    at sun.awt.image.PNGImageDecoder.sendPixels(PNGImageDecoder.java:549)
    at sun.awt.image.PNGImageDecoder.produceImage(PNGImageDecoder.java:470)
    at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:269)
    at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:205)
    at sun.awt.image.ImageFetcher.run(ImageFetcher.java:169)
Exception in thread "Image Fetcher 1" java.lang.OutOfMemoryError: Java heap space
    at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:75)
    at java.awt.image.Raster.createPackedRaster(Raster.java:467)
    at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1032)
    at sun.awt.image.ImageRepresentation.createBufferedImage(ImageRepresentation.java:253)
    at sun.awt.image.ImageRepresentation.setPixels(ImageRepresentation.java:559)
    at sun.awt.image.ImageDecoder.setPixels(ImageDecoder.java:138)
    at sun.awt.image.PNGImageDecoder.sendPixels(PNGImageDecoder.java:549)
    at sun.awt.image.PNGImageDecoder.produceImage(PNGImageDecoder.java:470)
    at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:269)
    at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:205)
    at sun.awt.image.ImageFetcher.run(ImageFetcher.java:169)

My questions are:我的问题是:

  1. Why would I need to fetch the image for text only extraction from documents?为什么我需要获取图像以仅从文档中提取文本?
  2. How do I configure Tika to skip fetching images like in this case.在这种情况下,如何配置Tika以跳过获取图像。 I don't wish to increase my heap memory to solve this instead gracefully skip the images.我不想增加我的堆 memory 来解决这个问题,而是优雅地跳过图像。

Edit: I am reading a file as stream and wrapped it as tikaInputStream and then opened an outputStream to write the result in another file.编辑:我正在读取一个文件为 stream 并将其包装为 tikaInputStream 然后打开一个 outputStream 以将结果写入另一个文件。

        outputWriter = new OutputStreamWriter(outputStream);
        WriteOutContentHandler writeOutContentHandler = new WriteOutContentHandler(outputWriter, writeLimit);

        AutoDetectParser parser = new AutoDetectParser();  
        Metadata metadata = new Metadata();

        parser.parse(inputStream, writeOutContentHandler, metadata);

I have attached the file which I used for testing and got the following exception:我附上了我用于测试的文件并得到了以下异常:

org.apache.tika.exception.TikaException: Unexpected RuntimeException from org.apache.tika.parser.microsoft.OfficeParser@4f209819
    at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:282)
    at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280)
    at org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:143)
    at tika.Tikaimpl.main(Tikaimpl.java:49)
Caused by: java.lang.IndexOutOfBoundsException: Block 96991 not found
    at org.apache.poi.poifs.filesystem.POIFSFileSystem.getBlockAt(POIFSFileSystem.java:434)
    at org.apache.poi.poifs.filesystem.POIFSFileSystem.readBAT(POIFSFileSystem.java:406)
    at org.apache.poi.poifs.filesystem.POIFSFileSystem.readCoreContents(POIFSFileSystem.java:359)
    at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:239)
    at org.apache.poi.poifs.filesystem.POIFSFileSystem.<init>(POIFSFileSystem.java:172)
    at org.apache.tika.parser.microsoft.OfficeParser.parse(OfficeParser.java:121)
    at org.apache.tika.parser.CompositeParser.parse(CompositeParser.java:280)
    ... 3 more
Caused by: java.lang.IndexOutOfBoundsException: Position 49659904 past the end of the file
    at org.apache.poi.poifs.nio.FileBackedDataSource.read(FileBackedDataSource.java:88)
    at org.apache.poi.poifs.filesystem.POIFSFileSystem.getBlockAt(POIFSFileSystem.java:432)
    ... 9 more

File used for testing.用于测试的文件

Increase the size of -XX:MaxPermSize upto 1GB将 -XX:MaxPermSize 的大小增加到 1GB

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