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  1. JBoss Enterprise Application Platform
  2. JBEAP-8395

File descriptors leak in MultiPartParserDefinition

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 7.1.0.DR12
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    • Undertow
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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)

      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()

              sdouglas1@redhat.com Stuart Douglas (Inactive)
              bobzer Vladimir Smirnov (Inactive)
              Jan Stourac Jan Stourac
              Jan Stourac Jan Stourac
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                Created:
                Updated:
                Resolved: