the art of scalability scalable web architecture pdf

... responsibility create vacuums of activity and failed scale initiatives. • The CEO is the chief scalability officer of the company. • The CTO/CIO is the chief technical scale officer of the company. • Key ... out along the y or vertical axis of the matrix and the individual contributors or organizations are spelled out on the x-axis of the matrix. The intersection of the activity (y-axis) and the organization ... someone other than the CEO approve his or her scalability vision or scalability plan. Consultants to the scalability vision are the CTO’s peers—the people who rely on the CTO for either the availability

Ngày tải lên: 14/08/2014, 17:21

... measurement of getting more for the same amount of money or (bet- ter yet) more for less money. Scaling with people then is a function both of the indi- vidual people, the number of people, and the organization ... company (or the behaviors to which your company aspires). • Gather after the interview and discuss the responses to the questions and the feelings of the team. It is as important to make the right ... found that it’s often useful to use the concept of a two-dimensional axis with defined actions such as in Figure 5.1. The x-axis here is the behavior of the employee and the y-axis is the employee’s

Ngày tải lên: 14/08/2014, 17:21

... high in the mid $20s the week of April 26, 1999, to a low of $10.42 the week of August 2, 1999. The cause of the outages isn’t really as important as what happened within the company after the outages. ... include the exact time and date of the change, the system undergoing change, the expected results of the change, and the contact information of the person making the change ... aware of it The primary reason for the inclusion of. .. to reduce the rate of change, but rather to allow the rate of change to increase while decreasing the number of change

Ngày tải lên: 14/08/2014, 17:21

... The type of architecture does not preclude the use of JAD either. Whether it is a traditional three-tier Web architecture, Service Oriented Architecture, or simply a monolithic application, the ... and it is either part of the core modules/services of the HRM system or it is estimated to take more than five days of development, then a JAD must take place. The participants will be the engineer ... more diverse the background of the team members, the more holistic the solution is likely to be. The actual structure of the JAD is very informal. After the team has been assigned to the feature,

Ngày tải lên: 14/08/2014, 17:21

... beyond the normal traffic, often to the breaking point of the application, in order to observe the behaviors. • The eight steps of stress testing are as follows: 1. Identify the objectives of the ... perform the calculations on them The formula is to multiply each score in the body of the matrix by the weight of each factor and then sum these products for each tradeoff... ... with the results and the runtime of the application. However, as the list of candidates grows, so does the list of companies for which the candidates have worked. Addition- ally, given the growth

Ngày tải lên: 14/08/2014, 17:21

... tasks. ptg5994185 THE Y-AXIS OF THE CUBE 331 The Y-Axis of the Cube The y-axis of the cube of scale represents a separation of work responsibility by either the type of data, the type of work performed ... all part of the Art of Scalability. ” Referring back to the introduction, the determination... determined at the time of the transaction; most often, this split is based on the ... specializing in some of the more common requests within this 10% to 20% of the total work and a third pool that handles the small minority of the remainder of the common requests. Both of these new service

Ngày tải lên: 14/08/2014, 17:21

... pool than the report service, how does each of these services know the state of the other? These are all questions that arise when trying... location of the inventory and the value ... caches are most often implemented by system owners themselves in order to off load the requests on their Web servers. • Many CDNs use the Internet as their backbone and offer their servers to ... caching? These are the types of questions you need to ask yourself before you start shopping the Web for a solution, or you could easily fall into the trap of making your problem fit the solution. The

Ngày tải lên: 14/08/2014, 17:21

... multiply the scores by the weights and then sum the products up for each project For the ETL example, we multiply the weight –1 by the score 1, add it to the product of the ... certification of third-party software are weighted a 3. We care about the load balancers but don’t need our own IP space and use all open source unsupported third-party software. Finally, the last of the ... take the form of making use of the speed of provisioning virtual hardware or the flexibility in using the environments differently each day. Lastly we talked about how to make the decision of

Ngày tải lên: 14/08/2014, 17:21

... beneath the availability of the adserving systems and the regis- tration systems. In other words, the device availability impacts the availability of these services, but the availability of the services ... formulate a hypothesis and a null hypothesis The hypothesis... times, the number of sql executions, and the number of errors reported by the application In Table C.1 are the response ... time results of the upload tests The results are from 10 separate runs of the test, each with 10 simultaneous executions of the upload service In the chart are the corresponding

Ngày tải lên: 14/08/2014, 17:21

... the former The real comforts of life cost but a small portion of what most of us can earn Dr Franklin says "it is the eyes of others and not our own eyes which ruin us If all the ... this they copy the bad habits of their seniors Little Tommy and Johnny see their fathers or uncles smoke a pipe, and they say, "If I could only... pipe of tobacco, let us try it." They ... sacrifice on the altar of fashion; but the boys stick to it and persevere until at last they conquer their natural appetites and become the victims... keep to the laws of nature, the nearer

Ngày tải lên: 28/06/2014, 17:20

... RESERVED TO F. ARTHUR METCALF FELLOW−WORKER AND FRIEND Things to Think of First The Art of Public Speaking The Art of Public Speaking 2 A FOREWORD The efficiency of a book is like that of a man, in ... drive the bloom from the cheek and the lustre The Art of Public Speaking "1_1_2">CHAPTER II. THE SIN OF MONOTONY 8 [...]... fertile soil yields to the husbandman every product of ... WHEAT LOCKS THE SUNSHINE IN ITS BEARDED SHEAF In the same field the clover steals the fragrance of the wind, and tobacco catches the quick aroma of the rains THERE ARE MOUNTAINS...

Ngày tải lên: 28/06/2014, 18:20

... resemblance between the look of Buddha’s face and how he imagined the front of the motorbike would be Having spent the rest of the week studying other statues of the Buddha in ... added value to the synthesis, for a whole is more than the sum of its parts 7 Art of Creative Thinking 1-134 :Creative Thinking 3/4/07 10:37 Page 8 The Art of Creative ... Page 10 The Art of Creative Thinking There are other later stages, of course, but let us stop here The point is that the model you have reached may well have been... linked, then

Ngày tải lên: 28/06/2014, 21:20

... CAPE TOWN LBADAN Publisher Geoffrey Cumkrlege, to the University WILLIAM RICHARD LETHABY C W R LETHABY ARCHITECTURE An Introduction to the History and Theory of the Art of Building With a new BASIL ... F.R.I.B.A Lethaby Professor of Architecture at the Royal College of Art, London GEOFFREY CUMBERLEGE OXFORD UNIVERSITY PRESS LONDON NEW YORK TORONTO 1955 First published in the Home and reUniversity ... W R LETHAjfiY AN INTRODUCTION TO THE HISTORY AND THEORY OF THE.'AHI OF BUILDING 720.9 Architecture 61-17UO ARCHITECTURE i i?^ Oxford University Press, Amen House, London

Ngày tải lên: 29/06/2014, 16:20

... you click the cursor on a color, that color appears in the upper half of the color rectangle to the right of the color slider, with the sampled color appearing in the lower half of the rectangle. ... the cursor at the top far left of the dramatic sky and, while holding the Alt/Option key, I clicked and sampled I placed the cursor on the top far left of the image of the ... percent of the sky this way and stopped just above the top of the horse and the top of the rock talus At this point, I wasn’t very precise and some of the clone spilled over the

Ngày tải lên: 02/07/2014, 02:20

... to measure the success of a campaign, a proven approach is not the number of times a particular audience received a particular message, but rather the quality of the message and the target ... The Art of Public Relations 55 satisfaction, and public-opinion surveys to measure the success of their programs. Ideally, the first survey is performed before the campaign begins, with the ... sending talented staff to other parts of the world to help our staff learn, grow, and develop the skills the client expects of them. This makes knowledge a key strategy for the future – developing

Ngày tải lên: 07/07/2014, 12:20

... and executed on the frontlines with many of the nation’s top businesses. These two are the best of the best. With The Art of Scalability, they have created the ultimate step-by-step instruction ... successfully overcome such challenges. The Art of Scalability provides a great summary of lessons learned while scaling two of the largest internet companies in the history of the space, and it’s a must-read ... correct the expected deficiencies. Those actions as previously iden- tified may be the purchase of new systems, a change in the architecture of certain components of the platform, such as the data...

Ngày tải lên: 14/08/2014, 17:21

... 10 11 cm 2 ). The level splitting between both quantum wells is proportional to the inverse of the tunneling period. The subsequent evolution of the wave function will basically depend on such a value of the ... value (compared to other thiol ligands, e.g pH 11.2 in the case of MSA (Kanwal et al. 2010)), which inhibited the growth of the nanocrystals. With the decrease of pH value, the growth rate slows ... consisted of zinc nitrate and GSH. Then NaBH 4 as reduction agent was added into the above mentioned solution with stirring. The pH was set to value of 10 by the addition of NaOH. The mixture was then...

Ngày tải lên: 27/06/2014, 00:20

... click on one of the tabs and peel it off into the open portion of the document, and it will become a new window. To add more tabs to the new window, you simply click on the one of the remaining ... the minimized palette The Art of Poser and Photoshop: The Official Guide16 Figure 1.20 Access the expanded view of the Adjustment Layers palette Figure 1.21 The expanded view of the Adjustment Layers ... layer, the Adjustments Layers palette immediately switches to its properties. See Figure 1.22. The Art of Poser and Photoshop: The Official Guide14 Figure 1.17 Viewing the minimized palette The Art...

Ngày tải lên: 02/07/2014, 08:20

... blend the lips into the rest of the imagery The Art of Poser and Photoshop: The Official Guide368 Figure 7.70 Final view of the face blended with the skin Figure 7.71 Close-up view of the right ... the outline that represents the original shape of the UV map. The Art of Poser and Photoshop: The Official Guide372 Figure 7.77 Use the Warp tool to shape the lips to the original UV template Figure ... with the use of a layer mask The Art of Poser and Photoshop: The Official Guide370 Figure 7.73 Copy and paste the right ear and resize it to match the out- line Figure 7.74 Blend the ear with the...

Ngày tải lên: 02/07/2014, 08:20

... that there is a shadow span- ning across the right side. The shadow regions of the planet will take on the color of the sky. Simply edit the mask so that the visual elements of the planet on the shaded ... The Art of Poser and Photoshop: The Official Guide418 Figure 8.49 View of the final results of the pants layer Figure 8.50 Apply a vector mask to create the outlines of the pants ... down the Ctrl/Command key to produce a selection of the object that is on the transparent layer. The Art of Poser and Photoshop: The Official Guide412 Figure 8.39 Apply a gradi- ent to the smart...

Ngày tải lên: 02/07/2014, 08:20