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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
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<item>
            <title>[MC-3823] Nether Chunks Aren&apos;t Being Saved in Multiplayer?</title>
                <link>https://bugs.mojang.com/browse/MC-3823</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I&apos;m having an issue where the Nether doesn&apos;t seem to save any chunks. I&apos;m playing on my personal SMP server, so usually I&apos;m the only one who&apos;s actively playing.&lt;/p&gt;

&lt;p&gt;Whenever I step into the Nether, all the blocks I have broken or placed from last time are reverted. In fact, when I enter from my Overworld portal, depending on what exact coordinate I was standing in while entering, alters the orientation of the Nether portal, but I&apos;m still in the same location. (Which suggests a new portal is created every time I enter!) Also, if I travel too far away from my Nether portal, while I&apos;m in the Nether, I&apos;ll return to find my Nether portal gone! &lt;img class=&quot;emoticon&quot; src=&quot;https://bugs.mojang.com/images/icons/emoticons/sad.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt; AND, none of these issues crop up with the Overworld!&lt;/p&gt;

&lt;p&gt;A little background about my server: I&apos;m running the server from within a ramdisk. I have dedicated 4096MB for the server&apos;s heap (-Xmx4096M), and the ramdisk holding the server data has a max size of 2048MB. My system ram is 16GB and I typically have anywhere from 8GB to 10GB free at any moment in time, according to &quot;free -m&quot;. The amount of space taken up by the ramdisk is around 5%, according to &quot;df -h&quot;. I do not save any data from the ramdisk to the hard disk until I stop the server completely. All of this information suggests to me that my ramdisk setup is NOT PART OF THE ISSUE.&lt;/p&gt;

&lt;p&gt;How to Recreate:&lt;br/&gt;
1. Start a Minecraft server.&lt;br/&gt;
2. Log in to the server.&lt;br/&gt;
3. Create a Nether portal.&lt;br/&gt;
4. Enter the portal, place a block down nearby, then go back to Overworld.&lt;br/&gt;
5. Return to the Nether. If the block is gone, then the chunk wasn&apos;t saved.&lt;/p&gt;</description>
                <environment>OS: Linux, Java: 1.7.0_05, Server: 1.4.5 (probably 1.4.4 too!)</environment>
        <key id="15998">MC-3823</key>
            <summary>Nether Chunks Aren&apos;t Being Saved in Multiplayer?</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="7">Invalid</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="scraps">Scraps</reporter>
                        <labels>
                            <label>multiplayer</label>
                            <label>server</label>
                            <label>world</label>
                    </labels>
                <created>Sun, 25 Nov 2012 06:36:37 +0100</created>
                <updated>Sun, 3 May 2015 06:22:47 +0200</updated>
                            <resolved>Mon, 26 Nov 2012 06:28:58 +0100</resolved>
                                    <version>Minecraft 1.4.5</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="117946" author="cubethethird" created="Thu, 7 Nov 2013 00:42:28 +0100"  >&lt;p&gt;As was commented, changing the folder permissions to read write and execute solved the problem.&lt;/p&gt;</comment>
                            <comment id="117942" author="jubilantj" created="Thu, 7 Nov 2013 00:19:14 +0100"  >&lt;p&gt;I am experiencing the same issue with the nether not saving chunks on the 1.7.2 server. What did permissions did you change to remedy this?&lt;/p&gt;

&lt;p&gt;(I realize this is an old comment, but maybe someone will see it. Don&apos;t wan to open a new ticket if this is the solution to my problem.)&lt;/p&gt;</comment>
                            <comment id="25122" author="scraps" created="Mon, 26 Nov 2012 06:12:06 +0100"  >&lt;p&gt;Welp, adding execute permissions to the region folder was the fix I needed. I thought I marked those correctly. Thanks guys.&lt;/p&gt;</comment>
                            <comment id="24754" author="kumasasa" created="Sun, 25 Nov 2012 09:09:08 +0100"  >&lt;p&gt;Cannot reproduce.&lt;br/&gt;
Even if you say that your setup is not part of the issue, I say the opposite.&lt;br/&gt;
Were several times to nether on our personal server (LAN only). Everything went fine.&lt;/p&gt;

&lt;p&gt;There may be a problem with the file access rights at &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; server/DIM-1/region&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;p&gt; &lt;br/&gt;
Can you see that the files change there in size and the file date ?&lt;br/&gt;
Let the server run off a physical harddisk.&lt;/p&gt;</comment>
                            <comment id="24753" author="cubethethird" created="Sun, 25 Nov 2012 09:03:05 +0100"  >&lt;p&gt;Sorry to say but my feeling is that your setup is part of the problem. Can you confirm that this occurs if the server is run on a physical disk?&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="61090">MC-38833</issuekey>
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