BufferedImage漏洞 - 还有其他选择吗？ [英] BufferedImage leaks - are there any alternatives?
问题描述
我遇到了BufferedImage的奇怪问题，在某些情况下会占用所有免费系统内存（3GB，1.5GB免费）。
I am having strange problems with BufferedImage, which in some cases consumes all the free system memory (3GB, 1.5GB free).
我创建了一个简单的包装器我这样使用它：
I have created a simple wrapper and I use it like this:
public ImageWrapper(final byte[] bytes) throws ImageWrapperException {
this(new ByteArrayInputStream(bytes));
}
public ImageWrapper(final ByteArrayInputStream bis) throws ImageWrapperException {
try {
image = ImageIO.read(bis);
bis.close();
} catch (IOException e) {
throw new ImageWrapperException(e);
}
}
（我有jsut验证即使用 image = ImageIO.read（file）; ）
(I have jsut verified that it happens even with image = ImageIO.read(file);)
我没有得到任何例外，直到第一个无法分配内存。
I am not getting any exceptions until the first "Cannot allocate memory".
出于某种原因，在读取特定类型的图像时，图像的读取将以消耗的所有系统内存结束。我不是在讨论堆，而是系统内存。
For some reason, when reading specific type of images, the reading of the image will end up with all the system memory consumed. I am not talking about heap, but really the system memory.
它只在某些环境中发生 - 它不会发生在我的 OSX 上，但它发生在我的 Debian 服务器上。
It happens only in certain environments - it does not happen on my OSX, but it happens on my Debian server.
- 你知道为什么会这样吗？
- BufferedImage是否有其他选择，可能效果更好？
- 有问题的机器是虚拟服务器。它可以由它的配置引起吗？
谢谢
编辑：
- 示例图片： http：// cl .ly / 1P430l0V1g133r0C291J
- 这只是第一个也是唯一一个会产生这种情况的实例。
- 我刚刚确认它也是发生在：
image = ImageIO.read（file）;- 我开始认为，它必须是Java之外的东西 - 一些本机库是错误的......
- Example image: http://cl.ly/1P430l0V1g133r0C291J
- It is just the first and only instance which will produce this.
- I have just verified that it also happens with:
image = ImageIO.read(file);- I am starting to think, that it must be something outside of Java - some native library which is buggy...
EDIT2：
所以问题在于FileSystem - 我在哪里有一个7GB的目录，里面有成千上万的图像。当我尝试读取文件时，它会占用所有内存 - 我想这是某种文件系统问题。
So the problem is with the FileSystem - where I have a 7GB directory with thousands of images inside. When I try to read a file, it consumes all the memory - I suppose it is some kind of Filesystem issue.
推荐答案
BufferedImage确实存在问题 - 我已经在两台服务器上测试了它并且它在泄漏时具有相同的结果 - 系统完全没有内存。
There is definitely something wrong with BufferedImage - I've tested it on two servers and it was leaking with the same results - System completely out of memory.
最后我用PHP编写了一个简单的包装器，现在我使用GD进行图像处理。现在工作正常。感谢您的所有建议！
In the end I've written a simple wrapper over PHP and I now use GD for image manipulation. Works fine now. Thanks for all the suggestions!
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