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    <title>Magnolia - Issue tracker</title>
    <link>https://jira.magnolia-cms.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-uk</language>    <build-info>
        <version>9.4.2</version>
        <build-number>940002</build-number>
        <build-date>19-01-2023</build-date>
    </build-info>


<item>
            <title>[MGNLDMS-185] DMSDownloadServlet logs error messages on client abort</title>
                <link>https://jira.magnolia-cms.com/browse/MGNLDMS-185</link>
                <project id="10112" key="MGNLDMS">Document Management System (closed)</project>
                    <description>&lt;p&gt;The DMSDownloadServlet logs error messages on client abort -&lt;/p&gt;

&lt;div class=&quot;preformatted panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;preformattedContent panelContent&quot;&gt;
&lt;pre&gt;2010-05-15 00:00:07,261 ERROR info.magnolia.module.dms.DMSDownloadServlet - error during download
ClientAbortException:  java.net.SocketException: Connection reset
        at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:358)
        at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:434)
        at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:349)
        at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:381)
        at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:370)
        at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:89)
        at info.magnolia.module.dms.DMSDownloadServlet.sendUnCompressed(DMSDownloadServlet.java:124)
        at info.magnolia.module.dms.DMSDownloadServlet.handleResourceRequest(DMSDownloadServlet.java:109)
        at info.magnolia.module.dms.DMSDownloadServlet.process(DMSDownloadServlet.java:185)
        at info.magnolia.module.dms.DMSDownloadServlet.doGet(DMSDownloadServlet.java:75)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at info.magnolia.cms.filters.ServletDispatchingFilter.doFilter(ServletDispatchingFilter.java:183)

...
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;This has once been fixed in &lt;a href=&quot;https://jira.magnolia-cms.com/browse/MGNLDMS-106&quot; title=&quot;DMSDownloadServlet - error during download when site is under heavy traffic&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MGNLDMS-106&quot;&gt;&lt;del&gt;MGNLDMS-106&lt;/del&gt;&lt;/a&gt; but we now have a regression - probably due to a exception change in recent tomcat versions. Tomcat (using 6.0.26 here) doesn&apos;t throw a SocketException, but a &lt;a href=&quot;http://tomcat.apache.org/tomcat-6.0-doc/api/org/apache/catalina/connector/ClientAbortException.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ClientAbortException&lt;/a&gt; (which is an IOException).&lt;/p&gt;

&lt;p&gt;I&apos;d suggest to catch the IOException rather then the SocketException in DMSDownloadServlet.&lt;/p&gt;</description>
                <environment>Tomcat 6.0.26</environment>
        <key id="18470">MGNLDMS-185</key>
            <summary>DMSDownloadServlet logs error messages on client abort</summary>
                <type id="1" iconUrl="https://jira.magnolia-cms.com/secure/viewavatar?size=xsmall&amp;avatarId=10883&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.magnolia-cms.com/images/icons/priorities/major.svg">Major</priority>
                        <status id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="10000">Won&apos;t Do</resolution>
                                        <assignee username="pbaerfuss">Philipp B&#228;rfuss</assignee>
                                    <reporter username="ojs">Oliver Siegmar</reporter>
                        <labels>
                    </labels>
                <created>Mon, 17 May 2010 11:54:46 +0200</created>
                <updated>Wed, 4 Nov 2015 15:43:09 +0100</updated>
                            <resolved>Wed, 4 Nov 2015 15:43:09 +0100</resolved>
                                    <version>1.4.3</version>
                                                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="40267" author="mderting" created="Tue, 25 Oct 2011 16:14:14 +0200"  >&lt;p&gt;Hi,&lt;/p&gt;

&lt;p&gt;I&apos;ve attached a patch that uses a slightly modified version of the code provided by Danilo at &lt;a href=&quot;https://jira.magnolia-cms.com/browse/MAGNOLIA-3566&quot; title=&quot;Cache filter should ignore ClientAbortException&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MAGNOLIA-3566&quot;&gt;&lt;del&gt;MAGNOLIA-3566&lt;/del&gt;&lt;/a&gt;. It just adds another catch block for &lt;tt&gt;IOException&lt;/tt&gt; then inspects the cause to see if it was a &lt;tt&gt;ClientAbortException&lt;/tt&gt;. Code snippet below just for reference:&lt;/p&gt;

&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;
    &lt;span class=&quot;code-keyword&quot;&gt;protected&lt;/span&gt; void doGet(HttpServletRequest request, HttpServletResponse response) &lt;span class=&quot;code-keyword&quot;&gt;throws&lt;/span&gt; ServletException, IOException {
        &lt;span class=&quot;code-keyword&quot;&gt;try&lt;/span&gt; {
            process(request, response);
        }
        &lt;span class=&quot;code-keyword&quot;&gt;catch&lt;/span&gt; (IOException ioe) {
            Throwable wrappedException = ExceptionUtils.getCause(ioe);
            &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; (!((wrappedException != &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;) &amp;amp;&amp;amp; (StringUtils.equalsIgnoreCase(ioe.getClass().getName(),
                &lt;span class=&quot;code-quote&quot;&gt;&quot;org.apache.catalina.connector.ClientAbortException&quot;&lt;/span&gt;)))) {
                &lt;span class=&quot;code-comment&quot;&gt;// log error message ONLY &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; it&apos;s not a client abort.
&lt;/span&gt;                log.error(&lt;span class=&quot;code-quote&quot;&gt;&quot;IOExeption during download&quot;&lt;/span&gt;, ioe);
            } &lt;span class=&quot;code-keyword&quot;&gt;else&lt;/span&gt; {
                log.debug(&lt;span class=&quot;code-quote&quot;&gt;&quot;ClientAbortException during download&quot;&lt;/span&gt;);
            }
        }
        &lt;span class=&quot;code-keyword&quot;&gt;catch&lt;/span&gt; (Exception e) {
            log.error(&lt;span class=&quot;code-quote&quot;&gt;&quot;error during download&quot;&lt;/span&gt;, e);
        }
    }

&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;Let me know if you have any questions.&lt;/p&gt;

&lt;p&gt;Cheers,&lt;br/&gt;
Matt&lt;/p&gt;</comment>
                            <comment id="116101" author="mmuehlebach" created="Wed, 4 Nov 2015 15:43:09 +0100"  >&lt;p&gt;Given the thousands of other issues we have open that are more highly requested, we won&apos;t be able to address this issue in the foreseeable future. Instead we will focus on issues with a higher impact, and more votes.&lt;br/&gt;
Thanks for taking the time to raise this issue. As you are no doubt aware this issue has been on our backlog for some time now with very little movement.&lt;br/&gt;
I&apos;m going to close this to set expectations so the issue doesn&apos;t stay open for years with few updates. If the issue is still relevant please feel free to reopen it or create a new issue.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>relation</name>
                                            <outwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="13367">MGNLDMS-106</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="21828">MAGNOLIA-3855</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
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                <attachments>
                            <attachment id="15219" name="DMSDownloadServlet.java.patch" size="1300" author="mderting" created="Tue, 25 Oct 2011 16:14:14 +0200"/>
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