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  1. Undertow
  2. UNDERTOW-961

File descriptors leak in MultiPartParserDefinition

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      Deploy application, that can receive file uploads and upload many files with size that exceeds limit. Default limit is 10Mb. Exception is thrown:
      java.io.IOException: UT000054: The maximum size 10485760 for an individual file in a multipart request was exceeded
      at io.undertow.server.handlers.form.MultiPartParserDefinition$MultiPartUploadHandler.data(MultiPartParserDefinition.java:266)
      at io.undertow.util.MultipartParser$IdentityEncoding.handle(MultipartParser.java:332)

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      Deploy application, that can receive file uploads and upload many files with size that exceeds limit. Default limit is 10Mb. Exception is thrown: java.io.IOException: UT000054: The maximum size 10485760 for an individual file in a multipart request was exceeded at io.undertow.server.handlers.form.MultiPartParserDefinition$MultiPartUploadHandler.data(MultiPartParserDefinition.java:266) at io.undertow.util.MultipartParser$IdentityEncoding.handle(MultipartParser.java:332)
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      If some exception is thrown while uploading file (for example, file size limit exceeded), then file deleted, but file channel is not closed. Linux lsof command shown a growing number of descriptors. I solved this problem by modifying io.undertow.server.handlers.form.MultiPartParserDefinition$MultiPartUploadHandler.parseBlocking()
      exchange.putAttachment(FORM_DATA, data);
      } catch (IOException e) {
      try {
      if (fileChannel != null)

      { fileChannel.close(); }

      } catch (Throwable ignored) {
      }
      throw e;
      }
      Added fileChannel.close(). May be, this code need to be moved in MultiPartUploadHandler.close()

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          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-8395 File descriptors leak in MultiPartParserDefinition

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
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          is incorporated by

          Bug - A problem that impairs or prevents the functions of the product. JBEAP-8396 (7.0.z) UNDERTOW-961 - File descriptors leak in MultiPartParserDefinition

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Verified

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              sdouglas1@redhat.com Stuart Douglas
              bobzer Vladimir Smirnov (Inactive)
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                Updated:
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