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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>
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<item>
            <title>[MGNLCE-60] Remove &quot;too many open files&quot; startup check - if possible thanks to H2</title>
                <link>https://jira.magnolia-cms.com/browse/MGNLCE-60</link>
                <project id="13380" key="MGNLCE">Community Edition</project>
                    <description>&lt;p&gt;One benefit of switching to H2 is that it opens less file handles than Derby.&lt;/p&gt;

&lt;p&gt;After switching to H2, test if the problems due to too many open files are reduced ENOUGH, so that we can remove the check and restriction on Magnolia startup.&lt;/p&gt;

&lt;p&gt;Reason:&lt;br/&gt;
It is a hurdle for evaluators and new developers to have to change the system settings for handling open files, so it would be an improvement if we could remove this check.&lt;br/&gt;
See &quot;too many open files&quot; at &lt;a href=&quot;https://documentation.magnolia-cms.com/display/DOCS/_Known+issues&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://documentation.magnolia-cms.com/display/DOCS/_Known+issues&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="55318">MGNLCE-60</key>
            <summary>Remove &quot;too many open files&quot; startup check - if possible thanks to H2</summary>
                <type id="3" iconUrl="https://jira.magnolia-cms.com/secure/viewavatar?size=xsmall&amp;avatarId=10898&amp;avatarType=issuetype">Task</type>
                                            <priority id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/priorities/neutral.gif">Neutral</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="ilgun">Ilgun Ilgun</assignee>
                                    <reporter username="czimmermann">Christopher Zimmermann</reporter>
                        <labels>
                    </labels>
                <created>Thu, 6 Oct 2016 15:39:51 +0200</created>
                <updated>Fri, 17 Mar 2017 13:12:02 +0100</updated>
                            <resolved>Mon, 23 Jan 2017 10:55:11 +0100</resolved>
                                                                        <due></due>
                            <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="133617" author="mmuehlebach" created="Mon, 17 Oct 2016 10:44:31 +0200"  >&lt;p&gt;Create MGNLEE ticket and remove it there as well &amp;#8212; if it actually works.&lt;/p&gt;</comment>
                            <comment id="133734" author="czimmermann" created="Tue, 18 Oct 2016 15:25:57 +0200"  >&lt;p&gt;And please describe how it was tested.&lt;/p&gt;</comment>
                            <comment id="133915" author="mmichel" created="Mon, 24 Oct 2016 11:56:25 +0200"  >&lt;p&gt;Tried with `ulimit -n 256` on my machine and it failed pretty badly. See &lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;https://jira.magnolia-cms.com/secure/attachment/36202/36202_catalina.out&quot; title=&quot;catalina.out attached to MGNLCE-60&quot;&gt;catalina.out&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://jira.magnolia-cms.com/images/icons/link_attachment_7.gif&quot; height=&quot;7&quot; width=&quot;7&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/sup&gt;&lt;/a&gt;&lt;/span&gt;.&lt;/p&gt;</comment>
                            <comment id="134003" author="ilgun" created="Tue, 25 Oct 2016 13:22:10 +0200"  >&lt;p&gt;Closed as won&apos;t fix due to some systems may still rely on this check.&lt;/p&gt;</comment>
                            <comment id="134681" author="mdrapela" created="Wed, 9 Nov 2016 13:13:53 +0100"  >&lt;p&gt;No issue with &quot;too many files open&quot; on Debian 8.6.0-amd64-mate-desktop .&lt;/p&gt;</comment>
                            <comment id="137881" author="mmichel" created="Fri, 20 Jan 2017 09:55:57 +0100"  >&lt;p&gt;I don&apos;t want to be the only one blocking this anymore. It is causing confusion internally: I&apos;ve seen it in the Support HipChat room, and now for newcomers (&lt;a href=&quot;https://jira.magnolia-cms.com/browse/NPMCLI-76&quot; title=&quot;Investigate how newcomers can easily overcome the open files issue&quot; class=&quot;issue-link&quot; data-issue-key=&quot;NPMCLI-76&quot;&gt;NPMCLI-76&lt;/a&gt;). We don&apos;t need this check in theory, so let&apos;s remove it, and see if tickets are being opened. I&apos;ve just realised I&apos;ve been running 5.5+ bundles on my private laptop when remote working, and have not seen any issue. I had never done any tuning of system settings for Java on that system, so IMHO this is closer to a newbie machine than my Magnolia development laptop in the office.&lt;/p&gt;</comment>
                            <comment id="137927" author="czimmermann" created="Mon, 23 Jan 2017 09:53:03 +0100"  >&lt;p&gt;Reopening based on conversation with Ilgun and Maxime. &lt;br/&gt;
Please perform an additional test with EEPro bundle and monitor the number of opened files on the system during install and startup. &lt;br/&gt;
Additionally, add a large number of YAML definitions to the resources directory at the same time (for example the corporate website) and monitor the open files during this process.&lt;/p&gt;

&lt;p&gt;Based on an evaluation of these values we&apos;ll decide whether to remove the startup check.&lt;/p&gt;</comment>
                            <comment id="138012" author="mmichel" created="Tue, 24 Jan 2017 09:55:33 +0100"  >&lt;p&gt;For the records, this was discussed in planning, where &lt;a href=&quot;https://jira.magnolia-cms.com/secure/ViewProfile.jspa?name=had&quot; class=&quot;user-hover&quot; rel=&quot;had&quot;&gt;had&lt;/a&gt; said we want to keep this test for the time being. Providing a Magnolia Docker image in which we control the environment will probably be a better idea to let people try a one-click, no-friction Magnolia installation.&lt;/p&gt;</comment>
                            <comment id="140685" author="mmichel" created="Fri, 17 Mar 2017 13:12:02 +0100"  >&lt;p&gt;Looks like we did the right thing. I&apos;m running Ubuntu now, with a pretty low default file limit. Things had been running fine, until I tried to run both an author and public 5.5.3 EE instances. There I got the exact same `Too many files open` errors as I attached to the ticket.&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="is cloned by">
                                        <issuelink>
            <issuekey id="55495">MGNLEE-465</issuekey>
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