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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@99603 13f79535-47bb-0310-9956-ffa450edef68
45 lines
1.6 KiB
XML
45 lines
1.6 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE faq SYSTEM "../style/faq.dtd">
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<?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
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<faq metafile="error.xml.meta">
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<parentdocument href="./">FAQ</parentdocument>
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<title>Error Messages - Frequently Asked Questions</title>
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<description>What does this error message mean?</description>
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<section id="error"><title>Error Messages</title>
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<ul>
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<li><a href="#error.sendfile">Invalid argument:
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core_output_filter: writing data to the network</a></li>
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</ul>
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<section id="error.sendfile"><title>Invalid argument:
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core_output_filter: writing data to the network</title>
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<p>Apache uses the <code>sendfile</code> syscall on platforms
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where it is available in order to speed sending of responses.
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Unfortunately, on some systems, Apache will detect the presence of
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<code>sendfile</code> at compile-time, even when it does not work
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properly. This happens most frequently when using network or
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other non-standard file-system.</p>
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<p>Symptoms of this problem include the above message in the error
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log and zero-length responses to non-zero-sized files. The
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problem generally occurs only for static files, since dynamic
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content usually does not make use of <code>sendfile</code>.</p>
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<p>To fix this problem, simply use the <directive
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module="core">EnableSendfile</directive> directive to disable
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<code>sendfile</code> for all or part of your server. Also see
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the <directive module="core">EnableMMAP</directive>, which can
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help with similar problems.</p>
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</section>
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</section>
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</faq>
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