The only reason i can think of for doing this is versioning. If they fuck up in the 6.000 version, they can slip 6.001 in real quick and nobody really notices. As long as the help app gets the current app... it's all good.. =)
Please take into consideration the severity of lightning where you live. The high school that I went to (in central florida) ran fiber to all the rooms and then had a hub with CAT-5 to the individual ports. The reason for fiber was two-fold. Mainly, it was to protect against possible lightning strikes (as lightning doesn't travel down fiber very well). Secondly, it was to reduce the need of a repeater or other such device as the halls and some rooms were quite far from the networking office.
listen bud,
my other post wasn't "swapping out all other sorts of pieces of hardware at random"... it was UPGRADE those parts. Add more RAM, get a faster CPU, better NIC, etc.
And yes as odd as it is. I'll dig up some documented proof of this if you really want.
Mysql/PHP has a known problem with persistant connections that can be traced directly to nic/switch combinations. It is a rare problem but I have personally seen it happen.
And under a conjested situation like this MySQL doesn't kill the connections that aren't being actively used... and it just drowns in its own connections.
the company i was working for had similar problems... Where php and mysql would get in this wierd state when using persistant connections.
It would cause the DB to get all sorts of confused and end up eating it...
The solution (please don't ask why this is the case, it seems absolutely illogical) was the switch between the systems.. We changed it to a hub, BAM, problem solved.
After spending about 3-4 days digging through newsgroups, IRC, etc. We found a few people that were discussing this problem. It is unknown if it is a php problem or a mysql problem.
-andy
I worked for a company that took about 750,000 to a million hits/day with almost every page pulled from the DB.
Try the following:
Add more RAM (at LEAST 512), preferably 1 Gig
Upgrade CPUs
Upgrade Motherboards
Upgrade NIC
Read the "Optimizing MySQL" chapter (11??) from the mysql website.
Try contacting AbriaSoft who works with MySQL to provide support.
Try caching as much content as possible. Have you concidered squid. Or, you can easily write your own (this is really easy in PHP... email me for info).
I have been using Vservers for over a year now... while i'm pleased with the price and services offered, my connection to them always seems increadibly slow...
AOL, along with almost all ISPs, had metered access. You got like 10$US hours/month and after those 10 free hours it was like 2.95$US/hour. There were also certain "free areas" for things like letters from Steve Case, etc. Of course this allowed people to write software that tricked AOL into thinking that you were in a free area...
...'
If you didn't ask for this, don't get your panties all in a knot.
You are seeing this message, not "them". So if you can't be
trusted with your own password, we might have an issue, otherwise,
you can just disregard this message.'...
I think that in addition to the maps, you are going to need the software to interface with them. Mapquest (et. al.) do a lot of processing when you say, "Get me from pt. A to pt. B". I don't know if you program/etc... But your solution may be to chop up a number of parts and combine. You might even be able to do this with some sort of windows scripting.
You'll need a few things (if you wanna have something that's cool:
A reasonably accurate GPS to give you a longitude/latitude (I believe "Trimble" makes some good ones).
Some software that can figure out what street/address you are on/at based on the gps reading.
THEN, you need the mapping software to help you get from pt. A to pt. B
It's potentially a lot of work (but could be a lot of fun to). As a side note: I think that MS Streets isn't all that expensive. I imagine you are spending a little bit in the process of building this "device". You should see what it costs; I've seen it bundled with GPSs before. Streets also has cool functionality like, "Show me all chinese restuarants within 5 miles."
I realize a large majority of the audience avoids products like MSIE... but I believe that that's the source of the problem...
When a user bookmarks a page, they age given an option to "Make Available Offline" which, if selected, pops up some configuration dialog boxes (where they get to choose how many layers deep, etc). It essentially grabs all the code, graphics, etc. and saves it locally.
Personally, I use this function when I don't know if the content is likely to be around for a while. As it is processing, it shows that it is grabbing all sorts of robots.txt files from all over the damned place (especially if it follows a number of links deep).
It's not the brightest of MS's "wizards", so i probably keeps requesting the same one repeatitively when links follow to the same server. Try to check what the HTTP_USER_AGENT
says about that robots.txt file.
If your logs can't tell you, Make php process.txt files (in you Apache settings of via a.htaccess file) and run a little script in your robots.txt file that'll log the HTTP_USER_AGENT
to a db or text file, etc.
The HTTP_USER_AGENT/should/ be in blocks of the same type (more or less)
A solution to this is to use server-side browser detection and dynamic output the proper header/footer/etc.
The approach is very simple and can/should be applicable to most server-side scripting languages.
Before any data is processed, detect the browser type/version (plugins too where available). With this you will generate a the proper header/footer and _also_ any sub-table styles, etc. The advantages to this are that you'll be able to have a nice, theme through-out your site (as good design dectates) and you'll be able to provide all the flashy content where available.
The downside: If your site receives a lot of traffic, you might see some performance issues due to all the server side processing. Another issue is that you will have to design/develop a number of different styles for each browser/etc. Also, this can wreak havoc on caching mechanisms (i.e. Squid, etc).
One solution is to do a redirect upon loading the main page. i.e. http://foo.com will detect your browser and go to http://foo.com/ns/. But some browsers don't like redirects. You can fix this by using a splash page and having the splash page send you to the proper section of the site when it's done.
Alternatively, you can have the main page execute dynamically and send a "No-Cache" header (so Squid et. al) will ignore it. and have all links from there (you'll need some dynamic code for this) link to the appropriate section. For example: you go to http://foo.com and click on a link, it might to go/ie/link or/ns/link, etc.
There are a number of ways to skin this cat. Usually the rule that applies is to keep it simple.
The founder(s) of Akamai were some of the original coders of squid... so in essense squid is a slimmed down (although increadibly functional) version of akamai..
If you are interested in you audio ports, the soundblaster live PLATNUM has this "live drive" unit which fits in a 5.25" slot. It has SPDIF IN/OUT (they're RCA jacks... don't know the format), line in/out, midi in/out and volume all on the front panel...
She writes good books for beginners... and she does it right!
Instead of saying, "this is an tag..." like SO many books do, she teaches web design from the perspective of creating quality websites. There are entirely too many "web design" books out there on the market that just shove some HTML on the reader and hint on design.
Her books cover some great intro topics that allow readers to understand what makes a high quality website. Elements such as file format selection (GIF, JPG, PNG), and the use of tables for layout, and much more.
I'd recommend her books as a great place to start for anybody interested in quality "web design".
I agree fully with you, but what if the actual database file was stored on a shared disk (via Fibre Channel, or some other sort of SAN or NAS). Couldn't 2 SQL servers access the same file??? or does SQL lock the file or something???
Now.. what exactly do you mean by some girl's "box"...
If you're trying to hack that... that may take more-or-less effort (depending on your looks/personality/etc.) Just remember to wear your party hat...
Oh, and the most common "password" to hack some girl's "box" is: I love you. For some reason, a lot of girls go retarded when they hear this. Use it sparingly... it's a powerful weapon.
Slashdot Mirror
The only reason i can think of for doing this is versioning. If they fuck up in the 6.000 version, they can slip 6.001 in real quick and nobody really notices. As long as the help app gets the current app... it's all good.. =)
just a thought..
-andy
That is why we have this outraaaaageous accent.
=)
Please take into consideration the severity of lightning where you live. The high school that I went to (in central florida) ran fiber to all the rooms and then had a hub with CAT-5 to the individual ports. The reason for fiber was two-fold. Mainly, it was to protect against possible lightning strikes (as lightning doesn't travel down fiber very well). Secondly, it was to reduce the need of a repeater or other such device as the halls and some rooms were quite far from the networking office.
Just a thought, might not be applicable at all =)
listen bud,
my other post wasn't "swapping out all other sorts of pieces of hardware at random"... it was UPGRADE those parts. Add more RAM, get a faster CPU, better NIC, etc.
And yes as odd as it is. I'll dig up some documented proof of this if you really want.
-andy
Upgrading the NIC could make a huge difference.
Mysql/PHP has a known problem with persistant connections that can be traced directly to nic/switch combinations. It is a rare problem but I have personally seen it happen.
And under a conjested situation like this MySQL doesn't kill the connections that aren't being actively used... and it just drowns in its own connections.
-andy
the company i was working for had similar problems... Where php and mysql would get in this wierd state when using persistant connections. It would cause the DB to get all sorts of confused and end up eating it... The solution (please don't ask why this is the case, it seems absolutely illogical) was the switch between the systems.. We changed it to a hub, BAM, problem solved. After spending about 3-4 days digging through newsgroups, IRC, etc. We found a few people that were discussing this problem. It is unknown if it is a php problem or a mysql problem. -andy
Try the following:
- Add more RAM (at LEAST 512), preferably 1 Gig
- Upgrade CPUs
- Upgrade Motherboards
- Upgrade NIC
- Read the "Optimizing MySQL" chapter (11??) from the mysql website.
- Try contacting AbriaSoft who works with MySQL to provide support.
- Try caching as much content as possible. Have you concidered squid. Or, you can easily write your own (this is really easy in PHP... email me for info).
-andyi /know/ there some geeks in g'ville... =)
-andy
I have been using Vservers for over a year now... while i'm pleased with the price and services offered, my connection to them always seems increadibly slow...
time and money are typically controversial for managemnt types.
yeah... back in the day... =)
/hour. There were also certain "free areas" for things like letters from Steve Case, etc. Of course this allowed people to write software that tricked AOL into thinking that you were in a free area...
AOL, along with almost all ISPs, had metered access. You got like 10$US hours/month and after those 10 free hours it was like 2.95$US
whatever... just thinking back...
and i quote:
...'
If you didn't ask for this, don't get your panties all in a knot.
You are seeing this message, not "them". So if you can't be
trusted with your own password, we might have an issue, otherwise,
you can just disregard this message.'...
... great, real nice.
You'll need a few things (if you wanna have something that's cool:
- A reasonably accurate GPS to give you a longitude/latitude (I believe "Trimble" makes some good ones).
- Some software that can figure out what street/address you are on/at based on the gps reading.
- THEN, you need the mapping software to help you get from pt. A to pt. B
It's potentially a lot of work (but could be a lot of fun to). As a side note: I think that MS Streets isn't all that expensive. I imagine you are spending a little bit in the process of building this "device". You should see what it costs; I've seen it bundled with GPSs before. Streets also has cool functionality like, "Show me all chinese restuarants within 5 miles."Just a thought...
-andy
does this mean we can talk all the way around the world and stuff
I realize a large majority of the audience avoids products like MSIE... but I believe that that's the source of the problem...
.txt files (in you Apache settings of via a .htaccess file) and run a little script in your robots.txt file that'll log the HTTP_USER_AGENT
/should/ be in blocks of the same type (more or less)
When a user bookmarks a page, they age given an option to "Make Available Offline" which, if selected, pops up some configuration dialog boxes (where they get to choose how many layers deep, etc). It essentially grabs all the code, graphics, etc. and saves it locally.
Personally, I use this function when I don't know if the content is likely to be around for a while. As it is processing, it shows that it is grabbing all sorts of robots.txt files from all over the damned place (especially if it follows a number of links deep).
It's not the brightest of MS's "wizards", so i probably keeps requesting the same one repeatitively when links follow to the same server. Try to check what the HTTP_USER_AGENT
says about that robots.txt file.
If your logs can't tell you, Make php process
to a db or text file, etc.
The HTTP_USER_AGENT
-Andy
A solution to this is to use server-side browser detection and dynamic output the proper header/footer/etc.
/ie/link or /ns/link, etc.
The approach is very simple and can/should be applicable to most server-side scripting languages.
Before any data is processed, detect the browser type/version (plugins too where available). With this you will generate a the proper header/footer and _also_ any sub-table styles, etc. The advantages to this are that you'll be able to have a nice, theme through-out your site (as good design dectates) and you'll be able to provide all the flashy content where available.
The downside: If your site receives a lot of traffic, you might see some performance issues due to all the server side processing. Another issue is that you will have to design/develop a number of different styles for each browser/etc. Also, this can wreak havoc on caching mechanisms (i.e. Squid, etc).
One solution is to do a redirect upon loading the main page. i.e. http://foo.com will detect your browser and go to http://foo.com/ns/. But some browsers don't like redirects. You can fix this by using a splash page and having the splash page send you to the proper section of the site when it's done.
Alternatively, you can have the main page execute dynamically and send a "No-Cache" header (so Squid et. al) will ignore it. and have all links from there (you'll need some dynamic code for this) link to the appropriate section. For example: you go to http://foo.com and click on a link, it might to go
There are a number of ways to skin this cat. Usually the rule that applies is to keep it simple.
-Andy
The founder(s) of Akamai were some of the original coders of squid... so in essense squid is a slimmed down (although increadibly functional) version of akamai..
just a piece of knowledge...
If you are interested in you audio ports, the soundblaster live PLATNUM has this "live drive" unit which fits in a 5.25" slot. It has SPDIF IN/OUT (they're RCA jacks... don't know the format), line in/out, midi in/out and volume all on the front panel...
it's a pricey unit, but it's very useful.
-andy
Whatever is in the Dell Inspiron 7500 with the XGA+ screen... it runs at 1400x1050...
just a note
Go Here: http://www.dcaff.com/virus/
run Disable_VBScript.reg
if you have problems (like excel macros, run Enable_VBScript.reg)
have a nice day. =)
-andy
She writes good books for beginners... and she does it right!
Instead of saying, "this is an tag..." like SO many books do, she teaches web design from the perspective of creating quality websites. There are entirely too many "web design" books out there on the market that just shove some HTML on the reader and hint on design.
Her books cover some great intro topics that allow readers to understand what makes a high quality website. Elements such as file format selection (GIF, JPG, PNG), and the use of tables for layout, and much more.
I'd recommend her books as a great place to start for anybody interested in quality "web design".
I agree fully with you, but what if the actual database file was stored on a shared disk (via Fibre Channel, or some other sort of SAN or NAS). Couldn't 2 SQL servers access the same file??? or does SQL lock the file or something???
try epinions.com they offer user-based opinions of a lot of products and services
isn't this why they use TEMPEST?
Now.. what exactly do you mean by some girl's "box"...
If you're trying to hack that... that may take more-or-less effort (depending on your looks/personality/etc.) Just remember to wear your party hat...
Oh, and the most common "password" to hack some girl's "box" is: I love you. For some reason, a lot of girls go retarded when they hear this. Use it sparingly... it's a powerful weapon.
;-)