Linux Kernel Poll
Poll results will be published in an upcoming issue of Linux Journal.
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Free Webinar: Hadoop
How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers
Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?



Comments
earliest distro
I used the earliest distro that was available for linux sls soft landing systems, it was pre slackware, it was full of bugs, nevertheless it was great fun, a great learning experience, when slackware was release I switched to slackware, then caldera, then redhat, the centos, and I currently run debian.
My first kernel 0.99p12 that I remember using.
Now days IT guys in mayor companies have no clue on compiling kernels, the sad thing is that they do not care.
But that has been a great skill for myself.
for a long time before XFS was part of the standard kernel I used to compile it into the kernel it was a huge patch.
Another patch that was needed and it is still needed was to operate metricon radios as wireless ethernet using a protocal called starcom, now there is no need for that however since a regular radioi 802.11b is much better.
Another patch was to get quicknet cards to work for voip, that patch is now part of the linux kernel.
Another patch I used to apply to the kernel was for tape backup using some non standard colorado tape drives that
used the floppy disk controller for interface, if you think using the floppy disk controller was slow, you are absolutly correct they where very slow, but that was about 18 years ago.
Gaps in the kernel versions -- WTF?
I first booted into 1.0.3 after having downloaded my 12 Slackware floppy images, and immediately built a shiny new 1.0.9 on it.
Uptime question not phased properly, imo
My current system is a laptop. I power it off whenever I carry it.
The longest uptime I ever had was 746 days. The machine was not connected to the Internet and was running a custom accounting app that did not like upgrades (statically linked libs).
Cheers,
Alex @ SwiftNet
What a shame!
I'm filling like a shame for the Linux community.
I'm sorry.
Uptimes
High uptimes are a sign of a sloppy sysadmin.
sloppy sysadmin?
so someone who uses ksplice to keep their kernel updated, and has a HA home environment so services can be migrated to other systems is sloppy? Go back to your entry-level Windows admin environment.
Excellent.
Yesssssss, excellent. *rubs hands*
Which machine's uptime?
I reported the box with typically longest ie the server and not the ones I power off...
Where's my kernel?
I started using Linux on Slackware 2.0, kernel 1.1.59, which doesn't fall into any of the ranged in the poll. Where's my kernel? :-)
(I picked 0.95 - 1.0.0)
2.0.30 'Biltmore' Red Hat 4.2
2.0.30 'Biltmore' Red Hat 4.2 - late 1997.
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Your way of telling the whole thing in this post is actually good, all can effortlessly understand it, Thanks a lot.
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not quite a naughty word...
http://www.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.1/2.6...
+ WARNING: RAID-6 is currently highly experimental. If you
+ use it, there is no guarantee whatsoever that it won't
+ destroy your data, eat your disk drives, insult your mother,
+ or re-appoint George W. Bush.
grepped for naughty words in the kernel source? No, but...
I've never grepped for naughty words in the kernel source tree, but after hearing someone complain that Cucipop wasn't *quite* PC, I did telnet to my ISP's mail server on port 110, and issue POP commands to see if they were right (I worked for the ISP at the time, and it was one of our customers who had complained). Basically, after sending the "QUIT" command, Cucipop would ask, "Was it good for you, too?" Don't know if still does that, though.
Fedora's upgrade
Sorry for posting out of topic comment, but I'm really frustrated by the tendency of Fedora to break things on upgrade. For instance, I lost the ability to use mouse after upgrading from kernel 3.4.6 to 3.5.1/2. Thank goodness I always old stuff, so rolling back versions is a piece of cake.
Additional answers
r" to read something in before a line usingsed...apparently, POSIX specs say that regardless of where the "r" comes in the sequence of commands, the data gets read after all the other commands, even if they come after the "r"...grrr.)