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	<title>ImageHost.org Blog &#187; Status</title>
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	<link>http://blog.imagehost.org</link>
	<description>free image &#38; file hosting</description>
	<lastBuildDate>Sun, 22 Nov 2009 21:24:29 +0000</lastBuildDate>
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		<title>Server downtime May 23, 2009</title>
		<link>http://blog.imagehost.org/2009/05/23/server-downtime-may-23-2009/</link>
		<comments>http://blog.imagehost.org/2009/05/23/server-downtime-may-23-2009/#comments</comments>
		<pubDate>Sat, 23 May 2009 15:47:54 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=86</guid>
		<description><![CDATA[Sorry for the inconvenience, but there will be some more downtime on the main server (that hosts a, b, c, d, &#38; g.imagehost.org) as the main drive (on which the OS resides) needs to be replaced. For this reason unfortunately the server will be offline for several hours while backups are made, the drive is [...]]]></description>
			<content:encoded><![CDATA[<p>Sorry for the inconvenience, but there will be some more downtime on the main server (that hosts <strong>a</strong>,<strong> b</strong>,<strong> c</strong>,<strong> d</strong>,<strong> </strong>&amp; <strong>g</strong>.imagehost.org) as the main drive (on which the OS resides) needs to be replaced. For this reason unfortunately the server will be offline for several hours while backups are made, the drive is replaced, the OS reinstalled &amp; reconfigured.</p>
<p>Uploads and recently uploaded images (which are stored on <strong>f</strong>.imagehost.org) should be unaffected and continue to work as normal.</p>
<p><strong>Update</strong>: the server OS was reinstalled, but it was the wrong version (as the server has loads of RAM, installing a 32-bit OS doesn&#8217;t make sense). Unfortunately this is going to delay things some further.</p>
<p><strong>Update 2</strong>: Done! While there are still lots of little things (mostly cron jobs) left to set up, the server is hosting files again! Actually once the server came back online (hours ago) I had already hacked up a quick fix to have the other (working) server host the affected files, but this kind of overloaded that server a lot. I figured it was better to have the images load slowly than not at all. But from this moment on speeds should improve as the original server is now taking over the job again.</p>
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			<wfw:commentRss>http://blog.imagehost.org/2009/05/23/server-downtime-may-23-2009/feed/</wfw:commentRss>
		<slash:comments>8</slash:comments>
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		<item>
		<title>Server downtime May 21, 2009</title>
		<link>http://blog.imagehost.org/2009/05/21/server-downtime-may-21-2009/</link>
		<comments>http://blog.imagehost.org/2009/05/21/server-downtime-may-21-2009/#comments</comments>
		<pubDate>Thu, 21 May 2009 11:10:35 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/2009/05/21/server-downtime-may-21-2009/</guid>
		<description><![CDATA[Unfortunately at the moment the other server (not the same one as yesterday) is currently down. I was doing some small software upgrades, including a kernel upgrade which required a reboot. Unfortunately the server is currently stuck doing &#8220;fsck&#8221; (Linux equivalent of Scan Disk or chkdsk) and it looks like it may take a bit [...]]]></description>
			<content:encoded><![CDATA[<p>Unfortunately at the moment the other server (not the same one as yesterday) is currently down. I was doing some small software upgrades, including a kernel upgrade which required a reboot. Unfortunately the server is currently stuck doing &#8220;fsck&#8221; (Linux equivalent of Scan Disk or chkdsk) and it looks like it may take a bit longer before it&#8217;s done. Again I apologize for the inconvenience.</p>
<p><strong>Update:</strong> unfortunately it looks like the system drive of the server will need to be replaced. This means even more down time unfortunately, as it&#8217;s going to take some time to get the OS reconfigured again after my provider reinstalls it. No data should be lost however as the drive isn&#8217;t completely gone (plus there are backups on other servers). In the mean while I&#8217;m going to try to get the main site back online first, using the server that <em>is</em> currently working.</p>
<p><strong>Update 2:</strong> seems like when my provider mentioned a reinstall was necessary, they didn&#8217;t meant it needed to be done right away and that the system wasn&#8217;t booting &#8211; it is. So for a short while all of ImageHost.org should be online (pretty much) until the drive will be replaced in a few hours (after which <strong>a</strong>, <strong>b</strong>, <strong>c</strong>, <strong>d</strong> &amp; <strong>g</strong>.imagehost.org will be temporary offline until the OS is reconfigured).</p>
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			<wfw:commentRss>http://blog.imagehost.org/2009/05/21/server-downtime-may-21-2009/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
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		<title>Server downtime May 20, 2009</title>
		<link>http://blog.imagehost.org/2009/05/20/server-downtime-may-20-2009/</link>
		<comments>http://blog.imagehost.org/2009/05/20/server-downtime-may-20-2009/#comments</comments>
		<pubDate>Wed, 20 May 2009 21:13:30 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=79</guid>
		<description><![CDATA[The second ImageHost.org server, which hosts e.imagehost.org and f.imagehost.org was down for most of the day unfortunately. Part of the reason it took so long was because I didn&#8217;t notice until in the afternoon, and another reason is that it took some time to fix: it appears the network card had died. Anyway, the server [...]]]></description>
			<content:encoded><![CDATA[<p>The second ImageHost.org server, which hosts <strong>e</strong>.imagehost.org and <strong>f</strong>.imagehost.org was down for most of the day unfortunately. Part of the reason it took so long was because I didn&#8217;t notice until in the afternoon, and another reason is that it took some time to fix: it appears the network card had died. Anyway, the server is now back up. I apologize for the inconvinience.</p>
]]></content:encoded>
			<wfw:commentRss>http://blog.imagehost.org/2009/05/20/server-downtime-may-20-2009/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
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		<title>Short downtime due to server upgrades</title>
		<link>http://blog.imagehost.org/2009/02/16/short-downtime-due-to-server-upgrades/</link>
		<comments>http://blog.imagehost.org/2009/02/16/short-downtime-due-to-server-upgrades/#comments</comments>
		<pubDate>Mon, 16 Feb 2009 13:48:11 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=56</guid>
		<description><![CDATA[Both servers that are used to host all ImageHost.org content will be upgraded some time today to increase performance and expand capacity. Each server will be upgraded from 4GB RAM to a total of 8GB RAM and each server will have another HDD installed. These upgrades will cause short down time, however the site should [...]]]></description>
			<content:encoded><![CDATA[<p>Both servers that are used to host all ImageHost.org content will be upgraded some time today to increase performance and expand capacity. Each server will be upgraded from 4GB RAM to a total of 8GB RAM and each server will have another HDD installed. These upgrades will cause short down time, however the site should be a lot faster again (more RAM means more images that can be cached, and the extra HDDs are used to better distribute I/O load).</p>
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			<wfw:commentRss>http://blog.imagehost.org/2009/02/16/short-downtime-due-to-server-upgrades/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
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		<item>
		<title>Slowness</title>
		<link>http://blog.imagehost.org/2008/11/14/slowness/</link>
		<comments>http://blog.imagehost.org/2008/11/14/slowness/#comments</comments>
		<pubDate>Fri, 14 Nov 2008 16:20:45 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=44</guid>
		<description><![CDATA[I apologize for the slowness at the current moment, but right now the &#8220;afternoon peak&#8221; traffic is occuring (bandwidth usage is usually at it&#8217;s highest point in the late afternoon / early evening European time) and the site is &#8220;suffering&#8221; from another Digg submission with over 5000 (!) diggs. The net result is that the [...]]]></description>
			<content:encoded><![CDATA[<p>I apologize for the slowness at the current moment, but right now the &#8220;afternoon peak&#8221; traffic is occuring (bandwidth usage is usually at it&#8217;s highest point in the late afternoon / early evening European time) <em>and</em> the site is &#8220;suffering&#8221; from another <a href="http://digg.com/odd_stuff/BBQ_Nightmare" target="_blank">Digg submission</a> with over 5000 (!) diggs. The net result is that the server is a little overloaded and the network connection (100mbit) is being maxed out.</p>
<p>To combat this problem, I&#8217;ve put the new server I talked about in an earlier post (identifiable by the upload url <em><strong>e</strong>.imagehost.org</em>) in to active duty immediately. The only problem is that the method my scripts use to transfer new uploads to this server (which unfortunately are still coming from the overloaded server) isn&#8217;t terribly reliable, so some uploads may fail. If that happens, just try again.</p>
<p>I apologize for the inconvinience. I have ideas on how these various issues can be addressed and handled better in the future, but unfortunately this will require further script development so it will probably not be ready soon enough to be of any help right now.</p>
<p><em><strong>Update:</strong> above text applied to Friday, November 14. Site performance should now be back to normal.</em></p>
]]></content:encoded>
			<wfw:commentRss>http://blog.imagehost.org/2008/11/14/slowness/feed/</wfw:commentRss>
		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>False start II</title>
		<link>http://blog.imagehost.org/2008/10/11/false-start-ii/</link>
		<comments>http://blog.imagehost.org/2008/10/11/false-start-ii/#comments</comments>
		<pubDate>Sat, 11 Oct 2008 19:56:59 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=24</guid>
		<description><![CDATA[It seems like yesterday&#8217;s problem returned again today, sadly. I&#8217;ve contacted my provider and they have moved the server to a different switch. Initial results show the problem has now vanished. Then again, I thought the same thing yesterday. We&#8217;ll only know for sure if the problem stays away in the long run.
]]></description>
			<content:encoded><![CDATA[<p>It seems like yesterday&#8217;s problem returned again today, sadly. I&#8217;ve contacted my provider and they have moved the server to a different switch. Initial results show the problem has now vanished. Then again, I thought the same thing yesterday. We&#8217;ll only know for sure if the problem stays away in the long run.</p>
]]></content:encoded>
			<wfw:commentRss>http://blog.imagehost.org/2008/10/11/false-start-ii/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>False start</title>
		<link>http://blog.imagehost.org/2008/10/10/false-start/</link>
		<comments>http://blog.imagehost.org/2008/10/10/false-start/#comments</comments>
		<pubDate>Fri, 10 Oct 2008 21:37:49 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=22</guid>
		<description><![CDATA[There were some issues with the site which caused things to slow down significantly to the point it was causing dozens of uploads to fail. The cause of these issues was packet loss. Packet loss basically means that not every &#8220;packet&#8221; transmitted by the server reaches it&#8217;s destination, which means it has to be resend, [...]]]></description>
			<content:encoded><![CDATA[<p>There were some issues with the site which caused things to slow down significantly to the point it was causing dozens of uploads to fail. The cause of these issues was packet loss. Packet loss basically means that not every &#8220;packet&#8221; transmitted by the server reaches it&#8217;s destination, which means it has to be resend, which slows things down considerably. At the same time the slower connections were causing files to stay open for longer on the server, eventually causing &#8220;to many open files&#8221; errors which presented themselves as &#8220;500 Internal Server&#8221; errors to visitors. Fortunately the server provider was able to fix the network problem and I&#8217;ve made configuration changes so that &#8220;to many open files&#8221; errors won&#8217;t easily happen again.</p>
]]></content:encoded>
			<wfw:commentRss>http://blog.imagehost.org/2008/10/10/false-start/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>Server move II</title>
		<link>http://blog.imagehost.org/2008/10/09/server-move-ii/</link>
		<comments>http://blog.imagehost.org/2008/10/09/server-move-ii/#comments</comments>
		<pubDate>Thu, 09 Oct 2008 05:51:12 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=13</guid>
		<description><![CDATA[The second phase of the server move is complete. c.imagehost.org and www.imagehost.org (main site) have now also been moved, and new uploads are being served from the new d.imagehost.org location that also resides on the new server. I had originally imagined the server &#8220;letters&#8221; to represent physical servers, but for now they&#8217;re &#8220;virtualized&#8221;. There were [...]]]></description>
			<content:encoded><![CDATA[<p>The second phase of the server move is complete. <em><strong>c</strong>.imagehost.org </em>and <em><strong>www</strong>.imagehost.org </em>(main site) have now also been moved, and new uploads are being served from the new <strong><em>d</em></strong><em>.imagehost.org</em> location that also resides on the new server. I had originally imagined the server &#8220;letters&#8221; to represent physical servers, but for now they&#8217;re &#8220;virtualized&#8221;. There were a few bugs to iron out (SQLite seems to think its busy timeout is something it can ignore if it feels like it) but as far as I can see everything is working well. If you notice a problem though, don&#8217;t hesitate to contact me at <a href="mailto:support@imagehost.org">support@imagehost.org</a></p>
<p><span id="more-13"></span>Now eventually <em><strong>b</strong>.imagehost.org</em> is also going to moved to the new server, but not until it has &#8220;cooled off&#8221; in a traffic sense (bandwidth usage peaked at 79 mbps yesterday) <em>and</em> new uploads are served from yet another new server (not yet ordered), as the new server already peaked at 35 mbps peak bandwidth usage. In total ImageHost.org consumed nearly 750 GB (gigabyte) in the past 24 hours, which would work out to over 20 TB (terabyte) in a month. That&#8217;s not something you&#8217;d want to burden a single server with, certainly not one that mostly serves relatively small files.</p>
<p>But anyway, my next task will be to get logparsing back online (but not the old inefficient way) as I got the feeling a good chunk of the 750 GB used in the past day was abused by files which used way more bandwidth than is fair.</p>
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			<wfw:commentRss>http://blog.imagehost.org/2008/10/09/server-move-ii/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>Server move</title>
		<link>http://blog.imagehost.org/2008/10/05/server-move/</link>
		<comments>http://blog.imagehost.org/2008/10/05/server-move/#comments</comments>
		<pubDate>Sun, 05 Oct 2008 21:46:38 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=11</guid>
		<description><![CDATA[As I wrote in the Performance issues post below, I&#8217;ve ordered a new, much faster server. The first component of ImageHost.org to be moved to this server is a.imagehost.org. As this server has a different configuration, it took some time to adapt the scripts. Everything should be working, but in case you find a problem [...]]]></description>
			<content:encoded><![CDATA[<p>As I wrote in the <em>Performance issues</em> post below, I&#8217;ve ordered a new, much faster server. The first component of ImageHost.org to be moved to this server is <strong><em>a</em></strong><em>.imagehost.org. </em>As this server has a different configuration, it took some time to adapt the scripts. Everything should be working, but in case you find a problem please contact me at <a href="mailto:support@imagehost.org">support@imagehost.org</a></p>
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			<wfw:commentRss>http://blog.imagehost.org/2008/10/05/server-move/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
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		<title>Oops</title>
		<link>http://blog.imagehost.org/2008/10/05/oops/</link>
		<comments>http://blog.imagehost.org/2008/10/05/oops/#comments</comments>
		<pubDate>Sun, 05 Oct 2008 21:44:29 +0000</pubDate>
		<dc:creator>GHDpro</dc:creator>
				<category><![CDATA[Status]]></category>

		<guid isPermaLink="false">http://blog.imagehost.org/?p=9</guid>
		<description><![CDATA[Last Thursday the hard drive of server b.imagehost.org ran out of space. In order to clear up some space, I then ran a command which accidentally deleted a couple hundred files that shouldn&#8217;t have been deleted (ouch). Fortunately the affected files were still stored in a backup, but it took a few days to come [...]]]></description>
			<content:encoded><![CDATA[<p>Last Thursday the hard drive of server <strong><em>b</em></strong><em>.imagehost.org<strong> </strong></em>ran out of space. In order to clear up some space, I then ran a command which accidentally deleted a couple hundred files that shouldn&#8217;t have been deleted (ouch). Fortunately the affected files were still stored in a backup, but it took a few days to come up with a solution where I could restore the files intelligently (without restoring everything). If you notice a file is missing: don&#8217;t worry it&#8217;ll be back within 24 hours or so. Note that this problem only affected non-hotlinkable files. Hotlinkable images and thumbnails were not affected.</p>
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		<slash:comments>3</slash:comments>
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