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# Uptime: Does it matter with the modern web service?

**URL:** https://crunchtools.com/uptime-does-it-matter-with-the-modern-web-service/
Date: 2010-09-07
Author: fatherlinux
Post Type: post
Summary: Last week Ksplice announced free no-reboot kernels for Fedora which sparked off some interesting conversation about uptime over at the Standalone Sysadmin. Honestly, I ran across Ksplice a while back and I thought to myself, huh that might be useful for a certain niche, I added to a wiki page that I use to track&amp;lt;p class=&amp;quot;excert-link-wrapper&amp;quot;&amp;gt;&amp;lt;a href=&amp;quot;https://crunchtools.com/uptime-does-it-matter-with-the-modern-web-service/&amp;quot; class=&amp;quot;excerpt-more-link&amp;quot; &amp;gt;Continue Reading&amp;lt;span class=&amp;quot;screen-reader-text&amp;quot;&amp;gt; &amp;quot;Uptime: Does it matter with the modern web service?&amp;quot;&amp;lt;/span&amp;gt;&amp;lt;span class=&amp;quot;meta-nav&amp;quot;&amp;gt; &amp;rarr;&amp;lt;/span&amp;gt;&amp;lt;/a&amp;gt;&amp;lt;/p&amp;gt;&amp;lt;p class=&amp;quot;excert-link-wrapper&amp;quot;&amp;gt;&amp;lt;a href=&amp;quot;https://crunchtools.com/uptime-does-it-matter-with-the-modern-web-service/&amp;quot; class=&amp;quot;excerpt-more-link&amp;quot; &amp;gt;Continue Reading&amp;lt;span class=&amp;quot;screen-reader-text&amp;quot;&amp;gt; &amp;quot;Uptime: Does it matter with the modern web service?&amp;quot;&amp;lt;/span&amp;gt;&amp;lt;span class=&amp;quot;meta-nav&amp;quot;&amp;gt; &amp;rarr;&amp;lt;/span&amp;gt;&amp;lt;/a&amp;gt;&amp;lt;/p&amp;gt;
Categories: News
Tags: Best Practices, Kubernetes, Systems Administration
---

[![](http://crunchtools.com/wp-content/blogs.dir/23/files/2010/09/linux_kernel-300x225.png)](http://crunchtools.com/wp-content/uploads/2010/09/linux_kernel.png)

Last week [Ksplice](http://www.ksplice.com/pricing) announced free no-reboot kernels for Fedora which sparked off some interesting conversation about uptime over at the [Standalone Sysadmin](http://www.standalone-sysadmin.com/blog/2010/09/linux-machines-with-no-rebooting-is-this-what-we-want/comment-page-1/). Honestly, I ran across Ksplice a while back and I thought to myself, huh that might be useful for a certain niche, I added to a wiki page that I use to track such things and I moved on with my life. When the subject came up again, I decided to blog about it a bit.

Uptime, is it important? Well, like most things in computing I think it depends on your use case. In a scenario where you are running a large MySQL server based on a Red Hat Cluster suite style software, it could be. This is because fail-over is not instantaneous. It can take minutes or hours for a large database server to warm up all of it&#039;s buffers. This can create a user experience outage.

To that point, I currently have a server which has been up 1670 days. That is a little over 4.5 years without a reboot. This leads me to the question. In today&#039;s age of redundant power, network, drives, fans, CPUs, memory, etc; can we expect servers to remain up their entire production life-cycle? If so, rebooting is reduced to another contingency system similar to clustering software, better if if never necessary. In which case, Ksplice might have a niche.

As I mentioned at [Standalone Sysadmin](http://www.standalone-sysadmin.com/blog/2010/09/linux-machines-with-no-rebooting-is-this-what-we-want/comment-page-1/) I suspect the utility provided by Ksplice is [aimed](http://bx.businessweek.com/pci-compliance/view?url=http%3A%2F%2Fc.moreover.com%2Fclick%2Fhere.pl%3Fr2535993083%26f%3D9791) at PCI DSS, and other compliance standards, but apparently, there is debate as to whether this is actually so. Also there is no mention of compliance in Ksplice&#039;s [FAQ](http://www.ksplice.com/uptrack/faq).

On a second guess, I would think Ksplice is hoping to get it&#039;s self in with vendors such as Red Hat, at which point it would be able to provide compliance based kernels.

What do you think?

---

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