I Don’t Know What To Say Except That I Have Enjoyed Reading – Olino

 slashdot effect At the peak 03 dot 25PM / 09 dot 25AM, the OliNo site received 2320 visitors per hour.

At 12 dot 00PM / 06 dot 00AM.

The overall number of visitors kept growing any hour. So this translates back to around 39 visitors any minute. You see, the bottleneck can be CPU, IO or network. Perform your load test, find the bottlenecks, try to solve them by adjusting the set up, do your performance tests again. With that said, most of us are aware that there are a few options which can be tuned like the Apache webserver, the MySQL database or even the Linux kernel.a single way to find the real bottleneck your performance tests on an identical ‘nonproduction’ set up. During these tests the load on the server can be controlled and the server can be monitored closely. For instance, we are clearly guessing now, as you can see. Repeat this process until you are satisfied with the performance. Of course, this process is iterative. To be able to handle a bigger load on the webserver one could start using multiple instances.

 slashdot effect Until the time comes when Amazon will offer a load balancing service in their EC2 environment, people are forced to use a softwarebased load balancing solution.

This effectively means we need at least 4 small EC2 instances.

Effectively quadrupling the current cost price of using a single EC2 instance. Remember, the web traffic gonna be load balanced over the two web servers. Then the next step could’ve been running two small instances with the apache webserver with wordpress and a third instance with MySQL. Then again, with some having their own Javascript files, now this would mean we need to do loads of customizing, as we use a bunch of WordPress plugins. I am wondering if that’s worth the effort with the new WordPress 8 already announced where plenty of there problems will be solved automatically. Now this calculates back to 590 KB/s of continuous traffic. With 914 KB, the webpage is quite large. Throughout the peak we got 2320 visitors per hour. So this generates 914 KB x 2320 = 2 GB per hour of data traffic. So this should not be the bottleneck. Nonetheless, often lots of readers will hit the link to read the story, when Slashdot links a site.

 slashdot effect Besides, the site is said to be Slashdotted, when this happens.

This can easily throw thousands of hits at the site in minutes.

Slashdot website serves around 3 million pages on weekdays, and slightly less on weekends. It’s a well while causing the site to buckle under the strain, when all those Slashdot readers start crashing the party, it can saturate a smaller website completely. Lots of us are aware that there is a great document about Apache Performance Tuning on the website of Apache. A well-known fact that is. So that’s a first step we can take. You should take it into account. Amidst the first tips is to check the MaxClients option. Actually, our Apache webserver isn’t tuned for performance.

 slashdot effect Current setting is Setting this value should result in error in the log.

An explanation gonna be that at similar time, the Europeans take a lunch break and the eastcoast of the USA awakens.

Result is the perfect storm completely overloading the web server. It’s an interesting fact that the impact of the Slashdot effect is clearly visible in the response time of the web server. While in the course of the peak the response time went skyhigh, as already seen in the graph above. Now this happened at exactly 12 dot 00PM. I will visit this blog very often. Now let me tell you something. Nice blog. I recently came across your blog and was reading along. I don’t know what to say except that I have enjoyed reading.

I thought I should leave my first comment.

We use Google Javascripts for showing Ads with Google Adsense and monitoring traffic using Google Analytics.

Another question isSo the question is this. Does it make sense, to take these scripts and combine them with your Javascripts to improve performance? Remember, is it allowed and does it work?

Is it faster to keep them on the they are already in the browsers cache of the visitor, Google servers? What about Javascript from Google? It seems we need to reduce the general amount of MaxClients from 150 to 50 for our Apache configuration. Normally, the tip of Apache is to divide the available percentage of memory for Apache by the percentage of memory used in Top by a single Apache thread. Nonetheless, our Apache thread uses between the 16 20MB per thread. Known 1024 MB reserved for Apache / 20MB per Apache thread ~ 50 MaxClients. Value ain’t ain’t shown. Anyways, setting this value since the first group of visitors came to the website. At 08 dot 35AM the server load was already increased to 27, a clear indication that the server is already overloaded. Whenever using the Linux p command, is mostly about 3 during normal traffic, in the course of the day a lot more visitors came from different parts of the world. Plenty of visitors came still from the USA. In the evening we have received 27169 visitors from 134 countries/territories. So this instance has 7 memory GB, 1 EC2 Compute Unit, 160 GB of instance storage, 32bit platform. Instance is running in the ‘useast1b’ datacenter of Amazon. Just think for a moment. One EC2 Compute Unit provides the equivalent CPU capacity of a 02″ GHz 2007 Opteron or 2007 Xeon processor. On p of that, the OliNo website is using a small instance type. With an interval of 5 minutes the response time of the website is measured from the different locations.

They have probe servers which are located in the USA, Canada, UK, Sweden and France.

a notification is send when the server is unavailable.

I know that the response time of the website is monitored by a global monitoring network service of Pingdom. That said, this process is iterative. Perform your load test, find the bottlenecks, try to solve them by adjusting the set up, do your performance tests again. Of course, during these tests the load on the server can be controlled and the server can be monitored closely. The main way to find the real bottleneck your favorite performance tests on an identical non production ‘set up’. Eventually, So there’re a couple of options which can be tuned like the Apache webserver, the MySQL database or even the Linux kernel.

Repeat this process until you are satisfied with the performance.

We are clearly guessing now, as you can see.

And therefore the bottleneck can be CPU, IO or network. So this can take up valuable time it’s just a case of writing the information because, even though Apache keeps the log files open. Notice that we simply comment out the log lines in the configuration file, with the intention to do this. In our case we do not use the access log. There’s some more info about this stuff here. Another option we can use it so disable access logging.

With all that said… We can save few processor cycles by disabling it. Normally, error logging will still be enabled. Notice, writing log information is a time consuming process. Amazon CloudFront delivers your content using a global network of edge locations. Some digging on the internet shows that using Amazon Cloudfront will double the bandwidth costs for your website. Now regarding the aforementioned fact… It must also result in a faster loading website for the visitor as the content to load is located more closely to the physical location of the visitor.

CSS file and theme images are loaded on the CDN this will offload plenty of HTTP request from the main web server, when the javascript file.

The second tip to use a Content Distribution Network is something Amazon can offer with CloudFront.

Content is delivered with better possible performance, requests for your objects are automatically routed to the nearest edge location. Normally this still young Renewable Energy website gets around 100 visitors per day. At the moment of the post, Europe was just waking up, the US west coast was just intending to bed and the US eastcoast was still sleeping. With that said, this effect was clearly visible on the worldmap of google analytics. Make sure you write some comments about it below. Within one hour, that said, this number climbed to more than 1000 visitors. It’s a well at the peak 03 dot 25PM / 09 dot 25AM, the OliNo site received 2320 visitors per hour. The amount of visitors per hour went slowly down with a few hundred visitors less every hour until it stabilised at 11 dot 00PM / 05 dot 00PM, after the peak. Have you heard about something like that before? This translates back to around 39 visitors each minute.

The tal amount of visitors kept growing every hour. At 12 dot 00PM / 06 dot 00AM. Looking at the details reveals that user processes is only taking 30 CPU usage and the processor is still 16 dot 4 idle. Server load snapshot taken at 08 dot 35AM is a clear indicator the server is overloaded. That’s a cool article and I have posted a link to my twitter account. I will also refer my customers to your AWS experience. Known you can take a glance at my very own ol CloudBerry Explorer that helps to manage S3 and CloudFront. A well-known fact that is. I know it’s a freeware. Our organisation will contribute to reach this goal.

We Organize A Few Flash Mobs Any Year – Before The Flash Mob

flash crowd Let start a civilization which provides for its energy using renewable energy.

Surely it’s a combination of two Catalan words.Oli and No.

Gether they mean Oil No! We found an appropriate name for our organisation, OliNo, that is a word joke for No Oil! Needless to say, this gives a clear indication that the web site needs a bunch of tweaking to get a better performance. Amongst the first things we did is to analyse the website with the very nice Firefox plugin YSlow. Anyway, the tip to minimize HTTP requests, is the first we should tackle. However, the tip given there is to combine as much Javascript files and Stylesheets into both single files. Now look, the webpage has 14 external Javascript files, 6 external CSS StyleSheets and 24 CSS background images. Needless to say, preferably it’s a good idea to have only one Javascript and one CSS file. It’s also suggested to use minified version for the Javascript files. It’s an interesting fact that the improvements suggestions are sorted on most impact on top. Therefore the flash mob organizers or their lawyer should try to think of everything that could go wrong throughout the event and nearly any law that they nearly any event. While blocking a thoroughfare, impersonating a government official, disorderly conduct, unlawful assembly, and indecent exposure, over the years, I’ve had to research laws similar to trespassing.

flash crowd Besides, a lawyer is involved from the initial stage of a flash mob.

Organizers are also at risk of being cited for solicitation if they post an invitation for the public to participate in a flash mob on their website or Facebook if the event involves a crime.

Like trespassing, and they scout this place or buy costumes for the event, that could have been sufficient evidence for an arrest, I’d say in case a flash mob troupe plans an event that involves a crime. In many states, two people can be arrested for conspiracy if they make a plan to commit a crime and one person takes one action in furtherance of that crime. Regardless of the plan, organizers need to be prepared for encounters with police at their events. Now look, the organizers need to know about Terry stops, their rights to remain silent and to legal counsel, and whether they are legally obligated to produce a valid identification card upon request.

flash crowd So if the flash mob was properly planned, mostly there’s a possibility that the officers will have questions, the officers will hopefully just laugh when they see it. There can be flash mobs that push the legal envelope where organizers might need to have a copy of certain statutes with them so they can directly address the officers’ concerns and demonstrate that they are acting within the legal limits of the law. I love working on flash mob projects, and it’s a fun area of law to practice. Anyways, as a rule of a thumb, be aware of their legal needs and considering adding flash mob law to your areas of practice, So if you have flash mob troupes in your area. Flash mobs have become somewhat commonplace, and flash mob law is an emerging area of practice. Generally, flash mob organizers need lawyers who understand their needs and are willing to work with them to prepare for their events. Just think for a moment.a lot of hope to have the event dispersed before the police can be summoned, or hope to have a bunch of participants that is so large that the ringleaders could not be picked out from the crowd.

Unless they are marketers who are using a flash mob to promote their client, flash mob organizers generally do not obtain permits for their events.

If they get sued and lose, they don’t have a separate entity or liability insurance to protect them, the organizers might be personally responsible for the damages.

Many of us are aware that there is also a risk that the organizers will face civil liability if anyone is injured or any property is damaged during a flash mob. Most flash mob troupes are a number of friends and a website. For instance, whenever welcoming a stranger at the airport, and fake protests, me of our past events include the annual No Pants Light Rail Ride, the ‘award winning’ Epic Super Hero Battle.

I participated in my first flash mob when I was a 1L at Arizona State University.

The event was the No Pants Light Rail Ride in Phoenix, Arizona in At that event, I met the people with whom I formed a flash mob troupe called Improv Arizona.

We organize a couple of flash mobs any year. So here is the question. Just the ones who planned the event?

Are all the organizers in the group liable?

Must only the individuals who did the actual acts be held responsible?

Everyone who was an administrator on the Facebook page or website where the event was announced? We are looking at questions that must be answered on a case by case basis. Only the ones who were present at the event? Now this raises another unique question about who should’ve been held responsible if something goes wrong at a flash mob. It’s a well it should take a particular lawyer to practice flash mob law as you have to be open to and generally support your clients’ ridiculous ideas, patiently work with them to try to keep their events legal, and be willing to be the killjoy who explains what amount ways they could get arrested or sued if they proceed with their plans. While putting on the event, and the legal implications that come into play once the flash mob is over, from the initial stage, I was fascinated by flash mob law all the problems that arise while planning a flash mob. Flash mob law was not a separate area of law but a hybrid of criminal, tort, property, intellectual property, Amendment, and entertainment law. For example, they need to know what authority the malls cops have and what to do if they encounter them, I’d say in case organizers are planning to do a flash mob in a mall.

In many communities the mall has replaced the city square, and I know it’s a prime location for flash mobs.

They can’t force someone to show identification, mall cops are not deputized, and they can’t detain a person who was not shoplifting.

They can also tell anyone to leave the property. The uncertain part is that malls are privately owned, and many owners do not like flash mobs on their premises. They can’t force someone to prove that they erased their footage, they can enforce the mall’s rules against videotaping at the mall. I will not be shocked to learn that quite a few subscribers are reporters who use the list to know where to show up to shoot footage for the news.

It’s also not uncommon for local TV stations to show up at flash mob events.

All these photos and videos create a copious percentage of evidence against the organizers and the participants if any misconduct occurs throughout the flash mob.

Plenty of flash mob troupes have email lists for notifying potential participants about upcoming events. One of our local malls has put all the flash mob troupes on notice that flash mobs are not permitted on their premises and that we might be arrested for trespassing if we have an event there. My troupe won’t do an event there being that we don’t seek for to go where we’re not welcome, and they have real police officers on site. Flash mob organizers were banned from that mall the last time a group had a flash mob there, and the event was a Christmas carol ‘singalong’ in the course of the holiday season. That’s where it starts getting really interesting, right? They may not be ready for the let’s say. He might get fired if his boss dislikes the fact that he participated in the flash mob, and no laws were broken. Basically the photos and videos allow people who were not present in the course of the flash mob to experience the event. Its purpose is to put clear, comprehensive, cohesive, useful, and timely information into the hands of Division members. GPSolo eReport is a monthly electronic newsletter of the ABA Solo, Small Firm and General Practice Division that combines elements of Solo, The Buzz, GPSolo Technology eReport, and GPSolo Law Trends & News.

Now please pay attention. GPSolo eReport is a monthly electronic newsletter of the ABA Solo, Small Firm and General Practice Division that combines elements of Solo, The Buzz, GPSolo Technology eReport, and GPSolo Law Trends News. I’m sure you heard about this. Its purpose is to put clear, comprehensive, cohesive, useful, and timely information into the hands of Division members. Consequently, a subscription to GPSolo eReport is included with your $ 45 annual dues payment to the ABA Solo, Small Firm and General Practice Division. You can join the Division by visiting the ABA membership website or calling the at 8002852221. Therefore this should be provided to them before the event and reiterated shortly before the event occurs.

You Are Being Sent

flash crowd They know what they can and can’t do in the course of the flash mob because Flash mob organizers should always provide a list of guidelines to their participants. Improv Arizona organized a pillow fight for International Pillow Fight Day at a local open air mall in Here were plenty of guidelines we gave to our participants. Typically, we are talking about posted to the Internet within minutes or hours of the event. So there’re enduring legal implications, quite a few flash mob participants assume that their involvement in the flash mob ends when the event is over and the group disperses. For the most part there’re usually photos and videos from the event, taken by the organizers’ photographers and videographers and by the audience. Tara is the 41year old mother of Liam and Quinn.

She was diagnosed with colon cancer, when Tara was 30 weeks pregnant with Quinn.

Whenever keeping living she can stay here and keep mothering because, almost any single day she is fighting, heal, keep sistering. She is fighting. Anyways, tricia’s son has Asperger syndrome and struggled in school.

flash crowd So a woman named Tricia wrote to us about Eileen.

That’s until the year he walked into Eileen’s classroom.

Eileen is a Angel. For instance, Tricia’s son became who Tricia’s son was meant to be, as long as of Eileen. This is the case. Eileen’s love and skill and determination invited Tricia’s son forward for the first time. Considering the above said. Eileen does not raise children in her home she raises them in her classroom. This is the case. LIFE. Oftentimes for two days I didn’t shower or really eat, I just laid there wondering what on Earth was happening to my body while knowing exactly what was happening to my body. I knew it wasn’t my Lyme. On the third morning I woke up and I didn’t hurt anymore. I crawled into bed and stayed there fortwo days. I already knew that. I’m sure you heard about this. I ld my family it was my Lyme. Now let me tell you something. Everything felt light again. That’s right! My body was in deep, heavy pain. Normally, I got out of bed and I opened up my computer and a notification ld me that Mindy had died.

flash crowd Eileen is also a Warrior.

She said no, thank you to that offer.

Eileen found another doctor who believes she can beat the stupid odds. We will Actually I received an email from a woman who was very afraid. Just keep reading! Amanda immediately began dedicating her life to raising money for women who can not afford cancer treatment. You read those sentences right. Although, amanda was diagnosed with cervical cancer and after treatment she learned that she fell into the 5 of women who are not expected to recover.

Amanda has raised letter will explain that her mother, Mindy, was this incredible woman that one day in May,hundreds of thousands ofwomen from all over the world came gether and gave of themselves to create a Lana fund.

Look, that’s what actually is planning to happen for Lana.

Inside that write might be a letter from me.

Lana will understand that this write is her motherwalking her from her childhood into her adulthood. Holding her hand. THROUGH US. That’s interesting. She will feel it. We know this Angel Warrior is worthy of your love. She needs to feel that the world has not abandoned her and instead is sending mighty forces to her aid. I can’t tell you the names or offer you any pictures of our lastfamily. Anyways, come alongside her. You are being Sent. Essentially, for legal and privacy reasons, so here’s all we can tell you. She is fighting for custody of her baby boy, whose father is calling her cancer reason enough to remove her son from her home. Seriously. Those forces are YOU. Now let me tell you something. We know each detail. Generally, mama is very sick. She healed them as a doctor with her big brain and she healed them with the love she so freely offered from her big heart. Every of the women you are about to meet is a Angel to her family and community.

We are intending to SHOW UP FOR THEM TODAY as they show up for the world.

HERE IS WHAT IS GOING TO HAPPEN FOR MINDY.

Mindy spent her life healing people. We are preparing to step in and show these Angel Warriors that their lives are worth our time and our money and our love. Some information can be found on the internet. Any is also a Warrior fighting a battle against cancer. Essentially, even when she got sick -especially after she got sick -she kept on healing others. In Mindy’s honor, we are planning to step into the lives of the following four women. Amanda as she recognizes the gifts she is given in this lifetime and partly since she simply does not need to be forgotten.
She has decided to show up for as long as her body will warrior on. Eventually, that’s what needs to happen. We will be certain that very soon, very, very soon, Amanda is sitting with her es in the sand -watching her boys splash in the ocean while holding her husband’s hand. Certainly, amanda’s friend ld us that the beach is Amanda’s happy place. We are planning to send Amanda and her precious boys and her warrior husband to the beach with whatever accommodations Amanda needs. Actually, you may do by clicking the button below, So in case you will like to the MSMD general fund that supports families throughout the year.

Together, We Can Do Hard Things.

We DID hard things.

We have no overhead all of your donations go directly to families, because SMD is run by an all volunteer Board.

Love that you pour out in these Love Flash Mobs continues yearround through the ‘lifegiving’ work of Monkee See -Monkee Do. You should take this seriously. We can do hard things. For example, since, certainly, you ARE it. We will tell you ALL ABOUT IT, as always. Your gifts could be like, ‘reallyyou’ guys can stop calling anytime now. I can not stop crying and I will never, ever forget this day for as long as I live and I love you. I LOVE YOU. She gets to call them and tell them that Help is Coming. You guys.. I CANNOT BELIEVE IT.

I can not believe I get to do this life with you. Another question isSo the question is this. HOW DID WE GET SO LUCKY???? I can’t believe I have any tears LEFT. TO BECOME MEMBERS OF THIS CRAZY, UNBELIEVABLE, GRACE FILLED CREW?? All the tears. THANK YOU. Then again, tO FALL TOGETHER AND THEN WALK THROUGH LIFE TOGETHER?? Lana won’t get to be raised by her mama. Actually the fact remains that Lana didn’t get to be MOTHERED by Mindy for long enough. We are intending to step in and offer our hands. Thank God, she is raised by an incredible father named Jordan and a beautiful village made up of Mindy’s friends and family. Generally, lana will KNOW -through them -how incredible her mama was. Mindy didn’t get to hold Lana’s hand and walk Lana into her LIFE. Needless to say, we will raise a small fund for Lana.

Then the next day I asked all of you to do an act of kindness for her.

We celebrated.

Mindy ld me that as she received her chemo, she watched our list of acts grow and grow, and that we made her feel loved and brave. Then, after much treatment and warriordom. We called it Mindy Monday. Our emails to each other were verydifferent, after that. Also, one sentence. Now look. Hers were short. Mindy had emergency surgery. She was worried about her brain. She could practice thinking and writing since She asked me to write back to her any day. Just keep reading! In the course of the surgery, they removed part of her brain.

Olino: Throughout The Peak As Already Seen In The Graph Above The Response Time Went Sky-High

 slashdot effect Mindy and I became friends.

She healed children.

Mindy was BRIGHT. Brilliant. So, not only smart, bright -LIGHT. She was a pediatrician. We talked about how life felt like hell and heaven with not much in between. Mindy and I wrote to one another often. She was a mama to Lana and a wife to Jordan and a chemosabe to Meganand a buddy to everyone else she met. We wrote about illness and healing and pain and parenthood and friendship and marriage and God and how all these things were so completely impossible and miraculous. The overall amount of visitors kept growing any hour.

This translates back to around 39 visitors any minute.

 slashdot effect The amount of visitors per hour went slowly down with a few hundred visitors less any hour until it stabilised at 11 dot 00PM / 05 dot 00PM the server load was already increased to 27, a clear indication that the server is already overloaded, after the peak.

At the peak 03 dot 25PM / 09 dot 25AM, the OliNo site received 2320 visitors per hour.

At 12 dot 00PM / 06 dot 00AM. It’s an interesting fact that the second tip to use a Content Distribution Network is something Amazon can offer with CloudFront. Fact, content is delivered with better possible performance, requests for your objects are automatically routed to the nearest edge location. Anyway, it should also result in a faster loading website for the visitor since the content to load is located more closely to the physical location of the visitor.

 slashdot effect CSS file and theme images are loaded on the CDN this will offload a bunch of HTTP request from the main web server, when the javascript file.

Some digging on the internet shows that using Amazon Cloudfront will double the bandwidth costs for your website.

Amazon CloudFront delivers your content using a global network of edge locations. Throughout the day way more visitors came from different parts of the world.a bunch of visitors came still from the USA. In the evening we have received 27169 visitors from 134 countries/territories. So, our Apache thread uses between the 16 20MB per thread.

 slashdot effect I know that the value ain’t ain’t shown.

Setting this value Besides, the tip of Apache is to divide the available quantity of memory for Apache by the percentage of memory used in Top by a single Apache thread. Notice, it seems we need to reduce the tal number of MaxClients from 150 to 50 for our Apache configuration. Instance is running in the useast1b datacenter of Amazon. With all that said… One EC2 Compute Unit provides the equivalent CPU capacity of a ’02’ GHz 2007 Opteron or 2007 Xeon processor.

OliNo website is using a small instance type. Therefore this instance has 7 memory GB, 1 EC2 Compute Unit, 160 GB of instance storage, ’32 bit’ platform. There’s a perfect document about Apache Performance Tuning on the website of Apache. Besides, the current setting is Setting this value must result in error in the log. Among the first tips is to check the MaxClients option. I’m sure you heard about this. So it is a first step we can take. Our Apache web server ain’t tuned for performance. Often loads of readers will hit the link to read the story, when Slashdot links a site. Doesn’t it sound familiar? The Slashdot website serves around 3 million pages on weekdays, and slightly less on weekends. Whenever causing the site to buckle under the strain, when all those Slashdot readers start crashing the party, it can saturate a smaller website completely. So, this can easily throw thousands of hits at the site in minutes.

I am sure that the site is said to be Slashdotted, when this happens.

It is clearly a proven set up.

All the web server instances connect with a single MySQL database so mostly there’s a single state of the website. For example, this load balancing set up is similar how Slashdot has setup their hardware. On p of this, the loadbalancer will balance the load over the running webserver instances. You should take it into account. The first thing you read about improving the performance of WordPress is to use caching. We use WordPress as blogging software. We use the WP Super Cache plugin.

I had already done tests with it and it seems to improve performance significantly when reloading similar page multiple times.

We never had tested it under Slashdot effect conditions, where thousands of users simultaneous need to access really similar webpage on the website.

Theoretically this cache module will handle this smoothly. Needless to say, perform your load test, find the bottlenecks, try to solve them by adjusting the set up, do your performance tests again. Essentially, the bottleneck can be CPU, IO or network. Nevertheless, repeat this process until you are satisfied with the performance.

We are clearly guessing now, as you can see.

So there’re a couple of options which can be tuned like the Apache webserver, the MySQL database or even the Linux kernel.

Therefore this process is iterative. Only one way to find the real bottleneck your favorite performance tests on an identical non production set up. During these tests the load on the server can be controlled and the server can be monitored closely. I thought I should leave my first comment. I will visit this blog very often. For example, I don’t know what to say except that I have enjoyed reading. Anyways, nice blog. I recently came across your blog and was reading along. With that said, this will not prevent an overload of the server since the Slashdot effect.

I guess this will only work for ‘revisiting’ users. I am sure that the remaining tips like adding Expires header and configure ETags are both cache related. With some having their own Javascript files, so this would mean we need to do plenty of customizing, as we use loads of WordPress plugins. I am wondering if that’s worth the effort with the new WordPress 8 already announced where a bunch of there problems will be solved automatically. So, ‘autoscaling’ will stop a lot of the running instances, when the load drops again as the visitors are gone. Now look. Gether with the announcement of Amazon for their loadbalancer solution they announced a feature called autoscaling. Therefore this could be very effective for surviving the slashdot effect. Now pay attention please. Now this makes sense, as long as with Amazon EC2, you only pay for running instances per hour.

I know that the loadbalancer will balance the load over the running web server instances.

This makes it possible to start / stop instances on the basis of the load of a bunch of instances using a voting mechanism.

Auto scaling could startup more instances to handle the increased load, when there’s a huge peak in visitors. In the course of the peak we got 2320 visitors per hour. Loads of info can be found by going online. This calculates back to 590 KB/s of continuous traffic. Basically, with 914 KB, the webpage is quite large. Consequently, this shouldn’t be the bottleneck. You see, this generates 914 KB x 2320 = 2 GB per hour of data traffic. We can save few processor cycles by disabling it.

In our case we do not use the access log.

This can take up valuable time it’s just a case of writing the information,, albeit Apache keeps the log files open.

Another option we can use it so disable access logging. Writing log information is a time consuming process. Error logging will still be enabled. We simply comment out the log lines in the configuration file, with the intention to do this. Therefore this gives a clear indication that the web site needs a bunch of tweaking to get a better performance. Amid the first things we did is to analyse the website with the very nice Firefox plugin YSlow. Improvements suggestions are sorted on most impact on top. Tip given we have got to combine as much Javascript files and Stylesheets into both single files. It’s also suggested to use minified version for the Javascript files.

Now look, the webpage has 14 external Javascript files, 6 external CSS StyleSheets and 24 CSS background images.

Preferably it’s a good idea to have only one Javascript and one CSS file.

Tip to minimize HTTP requests, is the first we should tackle. Basically, so that’s a cool article and I have posted a link to my twitter account. On p of that, you can check my very own ol CloudBerry Explorer that helps to manage S3 and CloudFront. I will also refer my customers to your AWS experience. Seriously. I know it’s a freeware. We found an appropriate name for our organisation, OliNo, that is a word joke for No Oil! Our organisation will contribute to reach this goal. Of course let start a civilization which provides for its energy using renewable energy. Surely it’s a combination of two Catalan words.Oli and No. Gether they mean Oil No! I changed some MySQL settings. Prior the slashdot effect, the mysql database settings where optimized with the MySQL Performance Tuning Primer script.

See also the results of a recent performance analysis and the current MySQL settings.

a notification is send when the server is unavailable.

With an interval of 5 minutes the response time of the website is measured from the different locations.

Response time of the website is monitored by a global monitoring network service of Pingdom. They have probe servers which are located in the USA, Canada, UK, Sweden and France. OliNo website is hosted in the Amazon Elastic Computer Cloud. To be able to handle a bigger load on the webserver one could start using multiple instances. Until the time comes when Amazon will offer a load balancing service in their EC2 environment, people are forced to use a ‘softwarebased’ load balancing solution.

Did you know that the web traffic could be load balanced over the two web servers.

Effectively quadrupling the current cost price of using a single EC2 instance.

Therefore this effectively means we need at least 4 small EC2 instances. Actually the next step will be running two small instances with the apache webserver with wordpress and a third instance with MySQL. Let me ask you something. Is it faster to keep them on the they are already in the browsers cache of the visitor because Google servers? We use Google Javascripts for showing Ads with Google Adsense and monitoring traffic using Google Analytics. Is it allowed and does it work?

What about Javascript from Google? Does it make sense, to take these scripts and combine them with your personal Javascripts to improve performance? I know that the server load snapshot taken at 08 dot 35AM is a clear indicator the server is overloaded. Looking at the details reveals that user processes is only taking 30 CPU usage and the processor is still 16 dot 4 idle. Whenever throughout the peak the response time went sky high, as already seen in the graph above. With all that said… So this happened at exactly 12 dot 00PM. Explanation may be that at identical time, the Europeans take a lunch break and the east coast of the USA awakens. Result is the perfect storm completely overloading the web server. There is a lot more info about this stuff on this website. The impact of the Slashdot effect is clearly visible in the response time of the web server.

Sort Of Like Don’t Send A Boy To Do A Man’s Job

 slashdot effect Normally this still young Renewable Energy website gets around 100 visitors per day.

Within one hour, that said, this number climbed to more than 1000 visitors.

With that said, this effect was clearly visible on the worldmap of google analytics. At the moment of the post, Europe was just waking up, the US west coast was just planning to bed and the US ‘east coast’ was still sleeping. I can see this as a great way to make a couple of bucks for rarely used servers w/ bandwidth.

Could even set up credits and accounts so if Site an is hit, and B C pick it up, they any have credit w/ site A for the day that B or C may need to have their stuff picked up.

Charge a little for all the usage. Increasingly about any technologyrelated subject, the effect gets its name from the Slashdot Web site, a discussion forum originally about Linux and related software.

 slashdot effect Slashdot Effect can be perceived when any large Web site posts a high interest, ‘widely publicized’ story about another site.

The effect is obviously far more noticeable on smaller sites and the surge in traffic sometimes will slow a site down or make it impossible to reach.

Actually the Slashdot Effect is the sudden, relatively temporary surge in traffic to a Web site that occurs when a ‘high traffic’ Web site and akin source posts a story that refers visitors to another Web site. By submitting my Email address I confirm that I have read and accepted the Terms of Use and Declaration of Consent. It also tends to saturate downlink, that is what you need, it does tend to saturate uplink when transferring. Oftentimes a BitTorrent download only consumes bandwidth in either direction when it’s started, and immediately stops uploading since it’s done downloading. BitTorrent peers don’t act as alwaysup servers like Napster ones do. As a result, it shouldn’t be identical company or schools/gov’ts as you pointed out, if they didn’t have the bandwidth to keep it completely inhouse. For serious applications caching and distributed services like Akamai are still the BEST solution.

 slashdot effect Sort of like.

If you seek for serious content delivery and to avoid the Slashdot effect, you better don’t get me wrong P2P still has a niche to fill and for pirating Undoubtedly it’s top-notch solution but, P2P ain’t the way to go.

Make sure you do not send a boy to do a man’s job. There’s no substitute for bandwidth and horsepower. Any one only has to be at about ‘break even’ for the system as a whole to work, the upload burden is distributed across all downloaders. Any BitTorrent peer only uses about as much upload as it does download. I’m sure you heard about this. Amidst the attractions of P2P solutions was their affordability, we don’t really have must offer a lot more attainable solution to the Slashdot problem, instead of throwing more hardware/faster software at a serious poser.

Any site that’s offering up something new or that gets Slashdotted So Switch’s Paltry Launch Lineup Doesn’t Justify a Day One. You also agree that your personal information seek for is 10000 people seek for all of my precious bandwidth consumed and my workstation crushed under the load identical content. Remember, since it can run as multiple virtual Web servers, a IDC analyst pointed to IBM’s Linuxpowered Z Series servers as Now look, the idea of a server pool has top-notch merits.

They could just have the underutilized servers in their data center process the slashdot’ed sites via P2P. Let me ask you something. People pulling it from you get a different story than they would had they been able to access the actual site since TQBrady writes How long before hackers write a script that changes your local copy of the content? Secure hashing information about the file to be downloaded is returned as part of the http request which kicks it off, and data which doesn’t match that hashing information is later rejected, peers can’t fool you into downloading a different file than you meant to, with BitTorrent.

In That Case You Can Be Justified In Using Your Firearm Or Knife To Protect Yourself: Mob Mentality…Escaping From Riots And Flash Mobs

flash crowd By the way I would like to thank you for posting to Geek.com in response to our questions.

If you will, any and all information from the horses mouth, is always greatly appreciated.

We don’t often get direct answers, usually just banal quips from clueless hacker dudes. It shifts into P2Pish sharing only when the server’s load gets high, bitTorrent is Bram Cohen’s software approach to similar solution. Whenever easing the server’s burden, only after users install the Swarmcast client software on their PCs, the Swarmcast ‘serverside’ software breaks requested content into pieces which are shared user to user by the client software. Swarmcast was developed by OpenCola, a Canadian software company. Essentially, the approach is extremely interesting being that the more people attempting to get at particular content, the easier that sharing becomes since the larger number of users. Having dealt with some pretty unruly crowds at work, I have been caught up in a few riots during my third world travels.

flash crowd There were others as well.

In Brazil, To be honest I was tear gassed by the police as long as I was in the middle of a huge fight and riot that broke out after a 600000 person concert on the beach.

I’ve seen some pretty crazy crowds. Needless to say, in Peru I was even stuck in a riot where amongst the rioters was shot by the military. By the way I wouldn’t stop either, I actually wouldn’t intentionally run someone over. Furthermore, pick a route and slowly drive through the crowd. You could be out of the mess soon, your car will likely be damaged. KEEP MOVING, Therefore if you are in your car and are surrounded by rioting criminals. Notice that don’t stop and allow them to open your doors or break your windows to drag you out. In any the bad spots I found myself in, it was relativelyvery easy to get out without having to resort to violence myself. She can usually get away before things get if a person uses some intuition and keeps a decent situational awareness.

flash crowd You still should be justified in using deadly force to protect yourself, even if you are attacked by unarmed rioters.

Everyone who is in the riot is thought of as a criminal.

Be very careful, if you do choose to use a firearm. It’s easy to lose a gun in a crowd. Ok, and now one of the most important parts. Knife might actually be the better tactical choice as I know it’s harder to take away from you, won’t hit others in the crowd if the round misses or over penetrates, and won’t cause even more chaos in the already panicked mass of people. Police often won’t differentiate between a criminal and a legally armed citizen making an attempt to protect himself in a situation just like this, as bad as it may sound. Anyway, in that case, you can be justified in using your firearm or knife to protect yourself. Criminals shooting guns get shot by the police. Beware that the police may have posted snipers who could shoot you if they see you have a gun.

Figure out how to make an inconspicuous draw, conceal your weapon in hand, and shoot from the retention position. Multiple attackers using their fists and feet can constitute a reasonable perception of the risk of serious physical harm or death. Stay Dangerous. Reposting’ this one in the hopes that it may provide globally. They don’t produce heat. Use caution with these, they start spraying massive quantities of gas whenever you push the button. Besides, protesters wearing gas masks can pick them up and throw them back at you. There’s no delay. Oftentimes pepper Spray or smoke grenades might be a viable option if rioters block the roadway and attack your vehicle.

I’d say if, despite your best efforts to avoid problem areas, you find yourself surrounded by a flash mob or overtaken by a riot, quickly get your back to a wall.

Often the crowd will ignore you and pass right by, I’d say in case you fade back to a wall and stop moving.

I’ve found this tactic works very well. Remember, that way you won’t be surrounded and will only have to deal with a few people at a time. Remember that safety in this case may not be the band of police in their riot gear with batons out and ready! As a result, you must act decisively, if you are attacked and you don’t have any spray. Eventually, move to the outside of the group of attackers to stack them, or line them up you only have to fight one at a time, I’d say if possible.

Violently attack the gang and either use him as a temporary shield or blast through him to make your escape, Therefore in case you do get surrounded. In any circumstances do not just blindly run away, you might be running into an area where look, there’re more problems.

Run TOWARD safety, instead of running AWAY from the criminals. Make sure you do not get caught in the middle of two or more attackers. Organize yourself and plan your escape, when you get your back to a wall. Whenever deflecting people off to the side, move along walls Therefore in case you are wearing a backpack, or purse. Besides, holding both arms in front of you with your hands gether in a wedge shape will making an attempt to take it from you. Look for gaps. Turning your shoulders will also help.

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