I have used both Perforce and CVS. I must say that overall I like Perforce better. One thing that it has over CVS is that changes are atomic, which is nice becuase it is easy to see all changes which were checked in together, and lets you backout changelists atomically, should you need to.
I am not using perforce now because it is too expensive, however Perforce is free when used on open source projects, or when only two clients are needed. This is outlined on the perforce pricing page.
Do we really think that the Austrailian government is out to protects my copyright when I forward gossip to my sister? Or do we think they are trying to cut down on chain letters and spam?
Carl sagan had what I though were some good thoughts on this subject in his book Contact. In his story, the message started containing segments that looked like this:
1A1B2Z
1A2B3Z
1A7B8Z
From this we were to deduce A means plus and B means equals. Later we se:
1A2B4Y
2000A4000B0Y
From this we were to deduce that Z means true and Y means false.
From there they move on to minus, multiplication, infinity, the sum of the interior angles of triangle equal 180, and so on, and so on... I though this part of the book was very fascinating, whereas the rest of the book was sort of a drag.
Like, what if I have the cd, but I broke it. Can I download someone elses copy of the mp3? What if I own the cassette? What If I bought the CD, and then lost it? What if I found the CD that someone else lost? What if my cd was stolen?
This is a question I've had for some time, especially since most of the stuff I download from napster, is music I used to own, but lost the originals. I feel like I'm entitled to the music, since I have already paid for a license. If I lose my Office 2000 cd's I'm entitled to install someone elses, provided I still have the certificate of authenticity, arent I? Then why not the some for music?
I did read the article. Did you?
I don't believe that the authors intention was for people who aren't already running linux. Here is an excerpt of the instructions for setting it up:
$ tar zxvf joystick-1.2.15.tar.gz
$ cd joystick-1.2.15
$ make jstest # No need to compile kernel modules
$ su
# install -c jstest/usr/local/bin
I don't know how you are going to do that from windows.
You have it backwards. This CD is designed to let you play Linux games if you don't have Linux (i.e. you have Windows).
I don't have windows, but I still see some benifits to this. It would be nice to boot off a cd-rom which only loaded as of the OS as I need to run the game, and leave the rest of the resources to the gaming. )
So, what am I trying to say? With no habitat to go back to, to repopulate, what's the point of bringing them back?
Will there never be a habitat to go back to? Who's to say that habitat could never be recreated? There is more than double the amount of forest land in New Hampshire than there was at the beginning of the 20'th century. As a result, we are seeing a resurgence in some song bird species, which is a good sign. And loss of habitat is not the only reason animals go extinct. Wolves were exterminated from the rockies because humans were scared of them. Now there are problems with elk and moose dying of starvation. Is the re-introduction of the wolf to the rockies a bad thing?
When it's gone, it'se gone. You can't recreate the gaur's environment at all, because the gaur's environment had gaurs and/or their ancestors bearing, feeding and caring for their young. If you "succeed", you'll get something that's not the same. You're introducing a species, not reinstanting one.
So lets say we were able to re-introduce the ivory-billed woodpecker. It doesn't have ancestors to show it exactly how to build a nest in a tree. But lets also say that nest building is based mostly on instinct, and very little on learned behaviours. So a new colony of Ivory-Billed Woodpeckers is established, but they don't know how to build their nests right. They build friggin cirucular holes in the trees instead of rectangular holes. And the song they sing is all wrong. Man, that would suck.
Yeah, the main thing that worries me about that scenario is that people tend to make mistakes...Saying "nothing will ever go wrong" or anything like that makes me a little nervous
What could possible go wrong? Nature will work things out. We are still a part of the evolution equation. If we were to re-introduce a previously extinted species, and it survives, great! If we somehow screw up, and wipe ourselves out, great, the biosphere is probably better of without us!
I was thinking more in an ecological sense, where introducing species into non-native environments tends to be a bad thing.
Is it definately a bad thing? What makes it definately bad? How does one know so much as to say it is bad or good? Bad for what? Bad for who? Think about this one: Lets say some bird gets hopelessly lost on its way south for the winter, and ends up on some deserted island. Lets also say that some seeds hitched a ride on this bird, and subseqently the seeds were to germinate on this island, and eventually the plant colonizes this preiously desolate island. Uh oh, the bird indroduced a species into a non-native environment. Was that a bad thing? Seems like it wasn't, but who are we to say? Many seem to think for some reason that A bird doing something like this is only natural, but a human doing something like this is a Bad Thing (tm). Why are we so special?
Someone must have thought of this before, but how easy would it be to make one yourself? A capture card, a large hard disk, a cheap processor... Sure, it'd cost more than US$399, but then you'd be calling the shots. That's gotta be worth it.
Re:Cost of redundant servers
on
Linux Failover?
·
· Score: 1
he idea here wasn't, "In case my machine blows up, I want to have a redundant one there just in case." it was something more like if you had, for instance, a machine that serves pages, and a machine that serves images, and the image server went down, the pages server would serve both images and pages until the images server came back up. The original article was not clear at all about whether they desired failover in case one of their upstream providers went down, or failover in case a machine went down. I was responding to a post which claimed that having two NIC's couldn't help if a CPU went down.
As for fallover...check out 3com....long ago a man (who would later go on to teach Unix courses at WPI and be one of the best teachers I ever had for anything) designed a piece of hardware with 1 ethernet port on one side, and 2 on the other...it was designed to do JUST THAT.
I just called up 3com and said, "Please send me two of those pieces of hardware with 3 ethernet ports on different sides that that guy who teachs unix designed a few years ago". Thanks for the lead. I can't wait to get em.
For better redundancy, you really want seprate redundant servers, each with RAID arrays [...snip...] Afterall, if a CPU fries, or a power supply starts letting its magic smoke out...all the duel port NICs in the world wont help.
I think you want two servers with the same RAID array. That way when one server goes down, the other server immediately knows this, (becuase that second ethernet card was for heartbeats between the two) and the second one can take over not only the downed machines IP address, but can also take over the workload of the downed machine, because the data is on a shared (multimaster) RAID array.
It doesn't matter how fast it can switch - you're still limited by the speed of light.
This reminds me of a story my dad used to tell me about seeing Dr. Wang speak in the seventies. He said, "There are two things which limit the speed of computers, the speed of light, and the distance light hast to travel. We have decided to work on the latter first."
"186,000 miles per second. It's not just a good idea, ITS THE LAW!" -from a bumber sticker
The most popular data is not necessarily the only important data. The First Amendment is all about the rights of the minority, and deleting little-used data is violating the spirit of free speech
I don't agree with this. The first ammendment says that you have the right to express yourself, not that anyone has to listen to what you have to say!
Slashdot Mirror
I am not using perforce now because it is too expensive, however Perforce is free when used on open source projects, or when only two clients are needed. This is outlined on the perforce pricing page.
Do we really think that the Austrailian government is out to protects my copyright when I forward gossip to my sister? Or do we think they are trying to cut down on chain letters and spam?
Oh, boy, I can just see it now. All of the domain name squatters will start movie name squatting next...
From this we were to deduce A means plus and B means equals. Later we se:
From this we were to deduce that Z means true and Y means false.
From there they move on to minus, multiplication, infinity, the sum of the interior angles of triangle equal 180, and so on, and so on...
I though this part of the book was very fascinating, whereas the rest of the book was sort of a drag.
actually the neutron star is standing still, and we are moving really really fast.
Like, what if I have the cd, but I broke it. Can I download someone elses copy of the mp3? What if I own the cassette? What If I bought the CD, and then lost it? What if I found the CD that someone else lost? What if my cd was stolen?
This is a question I've had for some time, especially since most of the stuff I download from napster, is music I used to own, but lost the originals. I feel like I'm entitled to the music, since I have already paid for a license. If I lose my Office 2000 cd's I'm entitled to install someone elses, provided I still have the certificate of authenticity, arent I? Then why not the some for music?
a feature that allows parents to automatically check, with one click, what sites your kids have visited lately.
Isn't that just View - Explorer Bar - History (in IE ) or Communicator - Tools - History ( in netscape )?
What's so special about Wireless LAN's as opposed to normal (Wirefull?) LAN's?
What's special is when you find a good new pr0n site and you want to take the laptop to the bathroom with you!
I don't believe that the authors intention was for people who aren't already running linux. Here is an excerpt of the instructions for setting it up:
I don't know how you are going to do that from windows.
You have it backwards. This CD is designed to let you play Linux games if you don't have Linux (i.e. you have Windows).
I don't have windows, but I still see some benifits to this. It would be nice to boot off a cd-rom which only loaded as of the OS as I need to run the game, and leave the rest of the resources to the gaming. )
I mean really, are there any cool Linux games that aren't available for Windows
But I don't want to buy a copy of Window just to play games. Linux is free (as in beer).
makes me wonder what this laptop is doing to my balls, since it is parked there 16 hours a day.
So, what am I trying to say? With no habitat to go back to, to repopulate, what's the point of bringing them back?
Will there never be a habitat to go back to? Who's to say that habitat could never be recreated? There is more than double the amount of forest land in New Hampshire than there was at the beginning of the 20'th century. As a result, we are seeing a resurgence in some song bird species, which is a good sign.
And loss of habitat is not the only reason animals go extinct. Wolves were exterminated from the rockies because humans were scared of them. Now there are problems with elk and moose dying of starvation. Is the re-introduction of the wolf to the rockies a bad thing?
When it's gone, it'se gone. You can't recreate the gaur's environment at all, because the gaur's environment had gaurs and/or their ancestors bearing, feeding and caring for their young. If you "succeed", you'll get something that's not the same. You're introducing a species, not reinstanting one.
So lets say we were able to re-introduce the ivory-billed woodpecker. It doesn't have ancestors to show it exactly how to build a nest in a tree. But lets also say that nest building is based mostly on instinct, and very little on learned behaviours. So a new colony of Ivory-Billed Woodpeckers is established, but they don't know how to build their nests right. They build friggin cirucular holes in the trees instead of rectangular holes. And the song they sing is all wrong.
Man, that would suck.
Yeah, the main thing that worries me about that scenario is that people tend to make mistakes...Saying "nothing will ever go wrong" or anything like that makes me a little nervous
What could possible go wrong? Nature will work things out. We are still a part of the evolution equation. If we were to re-introduce a previously extinted species, and it survives, great! If we somehow screw up, and wipe ourselves out, great, the biosphere is probably better of without us!
I was thinking more in an ecological sense, where introducing species into non-native environments tends to be a bad thing.
Is it definately a bad thing? What makes it definately bad? How does one know so much as to say it is bad or good? Bad for what? Bad for who? Think about this one: Lets say some bird gets hopelessly lost on its way south for the winter, and ends up on some deserted island. Lets also say that some seeds hitched a ride on this bird, and subseqently the seeds were to germinate on this island, and eventually the plant colonizes this preiously desolate island. Uh oh, the bird indroduced a species into a non-native environment. Was that a bad thing? Seems like it wasn't, but who are we to say? Many seem to think for some reason that A bird doing something like this is only natural, but a human doing something like this is a Bad Thing (tm). Why are we so special?
Has gotten the redhat network to work?
Could not even use JDK1.2.2 - segfault every time
I got this one as well. Upgrading to JDK 1.3 fixed it.
Someone must have thought of this before, but how easy would it be to make one yourself? A capture card, a large hard disk, a cheap processor... Sure, it'd cost more than US$399, but then you'd be calling the shots. That's gotta be worth it.
looky here --> Linux VCR
he idea here wasn't, "In case my machine blows up, I want to have a redundant one there just in case." it was something more like if you had, for instance, a machine that serves pages, and a machine that serves images, and the image server went down, the pages server would serve both images and pages until the images server came back up. The original article was not clear at all about whether they desired failover in case one of their upstream providers went down, or failover in case a machine went down. I was responding to a post which claimed that having two NIC's couldn't help if a CPU went down.
As for fallover...check out 3com....long ago a man (who would later go on to teach Unix courses at WPI and be one of the best teachers I ever had for anything) designed a piece of hardware with 1 ethernet port on one side, and 2 on the other...it was designed to do JUST THAT.
I just called up 3com and said, "Please send me two of those pieces of hardware with 3 ethernet ports on different sides that that guy who teachs unix designed a few years ago". Thanks for the lead. I can't wait to get em.
For better redundancy, you really want seprate redundant servers, each with RAID arrays [...snip...] Afterall, if a CPU fries, or a power supply starts letting its magic smoke out...all the duel port NICs in the world wont help.
I think you want two servers with the same RAID array. That way when one server goes down, the other server immediately knows this, (becuase that second ethernet card was for heartbeats between the two) and the second one can take over not only the downed machines IP address, but can also take over the workload of the downed machine, because the data is on a shared (multimaster) RAID array.
Of course, why thats even needed is beyond me.
apparantly...
It doesn't matter how fast it can switch - you're still limited by the speed of light.
This reminds me of a story my dad used to tell me about seeing Dr. Wang speak in the seventies. He said, "There are two things which limit the speed of computers, the speed of light, and the distance light hast to travel. We have decided to work on the latter first."
"186,000 miles per second. It's not just a good idea, ITS THE LAW!" -from a bumber sticker
The most popular data is not necessarily the only important data. The First Amendment is all about the rights of the minority, and deleting little-used data is violating the spirit of free speech
I don't agree with this. The first ammendment says that you have the right to express yourself, not that anyone has to listen to what you have to say!
Spread-spectrum wireless ought to take care of the congestion problem.
802.11 is already using spread sprecrum though!
yes. /usr/src/linux/drivers/net/wavelan.c
look in