Free PDF
is a type of publication with really outstanding suggestions to realize. How the writer start to motivate you, exactly how the author get the inspirations to write as this book, and also just how the writer has a magnificent minds that offer you this amazing simple book to check out. As we stated formerly, the really includes something dedicated. If you have such optimal and objective to actually get to, this publication can be the guidance to conquer it. You could not only obtain the understanding related to your job or obligations now. You will certainly obtain even more points.
Free PDF
Ultimate book collections can be gotten if you constantly see this web page. Find the numerous publications right here. All classifications from several resources, publishers, and also authors around the globe are presented. We not only provide the book collections from inside of this nation. Several gathered books are from the outsiders. However, the purposes are exact same. They are offered as an unified collection by online to offer more priceless resources to obtain guide.
When other individuals have begun to read the books, are you still the one that think of worthless activity? Never mind, checking out practice can be grown periodically. Many individuals are so tough to begin to like analysis, In addition reviewing a publication. Publication might be a ting to present only in the shelf or collection. Book might be just a thing likely pillow for your sleeping. Now, we have different aspect of guide to read. that we offer right here is the soft documents.
From the combination of knowledge and also actions, somebody can boost their skill and ability. It will lead them to live and also work better. This is why, the students, employees, and even companies should have reading practice for publications. Any kind of publication will certainly offer specific expertise to take all advantages. This is just what this informs you. It will certainly add even more knowledge of you to life and also work better. , Try it as well as prove it.
Keep to do absolutely nothing will make you feel so burdened. It can be dealt with when you truly want a new method to life. It is not about guide to complete quickly. It will prefer to exactly how you get every lesson and also quality that is provided from this publication. You could make plan to appreciate this book to review in only your leisure. It will no matter. So in this manner, pick your best way to improve the as your analysis product.
Product details
File Size: 7229 KB
Print Length: 400 pages
Publisher: Packt Publishing (July 17, 2014)
Publication Date: July 17, 2014
Sold by: Amazon Digital Services LLC
Language: English
ASIN: B00LVREFZM
Text-to-Speech:
Enabled
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $ttsPopover = $('#ttsPop');
popover.create($ttsPopover, {
"closeButton": "false",
"position": "triggerBottom",
"width": "256",
"popoverLabel": "Text-to-Speech Popover",
"closeButtonLabel": "Text-to-Speech Close Popover",
"content": '
});
});
X-Ray:
Not Enabled
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $xrayPopover = $('#xrayPop_5C5B09825BD511E9B7E3FCC31D6DFD40');
popover.create($xrayPopover, {
"closeButton": "false",
"position": "triggerBottom",
"width": "256",
"popoverLabel": "X-Ray Popover ",
"closeButtonLabel": "X-Ray Close Popover",
"content": '
});
});
Word Wise: Not Enabled
Lending: Not Enabled
Screen Reader:
Supported
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $screenReaderPopover = $('#screenReaderPopover');
popover.create($screenReaderPopover, {
"position": "triggerBottom",
"width": "500",
"content": '
"popoverLabel": "The text of this e-book can be read by popular screen readers. Descriptive text for images (known as “ALT textâ€) can be read using the Kindle for PC app if the publisher has included it. If this e-book contains other types of non-text content (for example, some charts and math equations), that content will not currently be read by screen readers.",
"closeButtonLabel": "Screen Reader Close Popover"
});
});
Enhanced Typesetting:
Enabled
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $typesettingPopover = $('#typesettingPopover');
popover.create($typesettingPopover, {
"position": "triggerBottom",
"width": "256",
"content": '
"popoverLabel": "Enhanced Typesetting Popover",
"closeButtonLabel": "Enhanced Typesetting Close Popover"
});
});
Amazon Best Sellers Rank:
#1,015,785 Paid in Kindle Store (See Top 100 Paid in Kindle Store)
This book exceeded my expectations, I am constantly reading and re-doing the recipes, it will be a good adquisition to anyone interested in Postgresql Big Leagues.
Wonderful published book. Great vendor!!
Solid reference and examples.
The author of this book is extremely knowledgeable about Database, Network, and Systems Administration. This cookbook will give you tried and trusted methods for managing everything from Backups, Monitoring, to Operating System Performance and more. Topics such as kernel tunables, disks, and even Networking Infrastructure are touched upon, in a real, relevant manner, not in a disconnected, academic light. Here is a chance for all Dev-Ops Engineers, DBA's, or Systems Engineers to apply real-world solutions to problems. Moreover, although the book is centred around Postgres, many of the techniques in this cookbook can be applied elsewhere.All in all, a very well-rounded guidebook which highlights best practices currently in use, and the guidance contained herein will be relevant for many years to come. I own both the print edition and the e-book, it is THAT valuable.
As it happens with fiction literature, I did not quiet like this book from the very beginning, but it became interesting after the first chapter. So, if you read it cover to cover, get some patience.In the beginning, the author admits that he does not cover cloud specific Postgres high availability methods. Well, it leaves an opportunity for somebody else to write a book dedicated to Postgres in a cloud. Also, the subject of high availability is huge and cannot be fully covered in a limited format of a cookbook. Anyway, the majority of the book's material is relevant in a cloud environment, too.The whole first chapter "Hardware Planning", perhaps, may have some value for a new to the subject users, but only to get basic ideas. Some recipes in this chapter are obvious, very basic, or oversimplified. Just one example, “Having enough IOPS†(p.11) is oversimplified in its relying on arbitrary assumptions. It is not clear why the author assumes that 3.5" hard drives produce 500 IOPS and 2.5†drives 350 IOPS (page 12). And don’t believe that you can get 500 IPOS from a 15K RPM drive. Even storage vendors usually claim no more than 180 IOPS. We are talking about random IOPS here, right? It does not make sense to plan a system for perfectly sequential IOs. I could continue complaining about the first chapter. Towards the end of it I was seriously thinking about putting the book away.My patience was fully rewarded in the consecutive chapters.As a cookbook should, it provides a bunch of handy queries. An example of a recipe with handy queries is “Identifying important tables†on page 53. There are also many very useful techniques like “Defusing cache poisoning†(how to avoid database slowness caused by empty caches after a crash), “Exploring the magic of virtual IPs†(how to switch to a standby server without using additional software), “Terminating rogue connections†(how to kill connection which does not want to die). These are just a few examples out of many.The author recommends and explains multiple handy Postgresql extensions and Linux tools throughout the book. dstat, iotop, and iostat are just a few out of really many. Hopefully, the readers already know how to use iostat or sar, but some other recommended tools are less known. Honestly, some tricks were new for me. In the end, I felt satisfied with the book. This book may teach new users many useful technics, tools, and queries. It also not just provides recipes, but in most cases provides good insights on how the things work. Experienced users may just use it as a source of readily available queries and commands and save time on producing their own. I would totally recommend this book to anybody who needs to maintain Postgresql databases.
PostgreSQL 9 High Availability Cookbook is a very well written book whose primary audience are experienced DBAs and system engineers who want to take their PostgreSQL skills to the next level by diving into the details of building highly available PostgreSQL based systems. Reading this book is like drinking from a fire hose, the signal-to-noise ratio is very high; in other words, every single page is packed with important, critical, and very practical information. As a consequence, this also means that the book is not for newbies: not only you have to know the fundamental aspects of PostgreSQL from a database administrator’s point of view, but you also need to have solid GNU/Linux system administration background.One of the strongest aspects of the book is the author’s principled and well-structured engineering approach to building a highly available PostgreSQL system. Instead of jumping to some recipes to be memorized, the book teaches you basic but very important principles of capacity planning. More importantly, this planning of servers and networking is not only given as a good template, but the author also explains the logic behind it, as well as drawing attention to the reason behind the heuristics he use and why some magic numbers are taken as a good estimate in case of lack of more case-specific information. This style is applied very consistently throughout the book, each recipe is explained so that you know why you do something in addition to how you do it.After the first chapter on basic planning, the author jumps to a set of miscellaneous topics in the Chapter 2, and details some important tricks such as defusing cache poisoning, concurrent indexes, and Linux kernel tweaks. This chapter starts to reveal another valuable aspect of the book: the information regarding an open source RDBMS such as PostgreSQL is freely available on the Internet, but depending on your needs, a particular set of information can very well be scattered over a lot of e-mail list messages, forum posts, Wiki pages, etc., and it takes a disciplined mind with a lot of field experience to put all of that scattered information into a single, consistent, logical and easy to follow form.Starting from Chapter 3, each chapter explores a single topic in a lot of practical detail, starting with connection pooling. This chapter, as well as almost all of the remaining ones has a nice feature: the author always try to explain alternative solutions, describes their advantages and disadvantages, and where possible shows how to combine some alternatives to get best of each.Chapters 4 and 5, namely Troubleshooting and Monitoring can be thought as a single chapter, because it is difficult to think these fundamental concepts separately. These chapters are also not only valuable for PostgreSQL DBAs but for any DBA or any GNU/Linux system administrator in general. Troubleshooting and monitoring a highly available database requires a book by itself, but since this book’s scope is clearly defined, the author provides enough background and practical starting points in about 70 pages.I can easily say that Chapter 6: Replication, together with Chapter 7: Replication Management Tools starts to form the ‘meat’ of the book; without successfully implementing and practically managing the replication of your critical database servers, it is impossible to think about building a highly available system, in other words, you need at least one replica of your database system, so that if your primary system goes down, you can very easily switch to your replica (or offload some of your less criticial applications to your replica and relive the stress on your primary system). These two chapters presents you the solid and practical information to achieve that goal. Similar to the previous chapters, the author shows and explains many useful and practical tools, he also does not refrain from presenting an open source tool, walctl, that he developed to as a “PostgreSQL WAL management system that pushes or pulls WAL files from a remote central storage serverâ€. I consider another positive point for the book because it clearly indicates the serious time investment of the author for PostgreSQL and its high availability configuration.Chapter 8: Advanced Stack, is aptly named, because this chapter, together with Chapter 9: Cluster Control, forms the most advanced and complex part of the book. The author’s warnings regarding the information density, and related real-life complexity of the topics explained in these two chapters should not be taken lightly. Indeed, there are many combinations of events that can lead to subtle and hard to debug errors in case of clusters set up to take over from failing nodes. Creating such a highly available system with Linux based tools such LVM, XFS, DRBD, Pacemaker, and Corosync requires careful planning, probably experimenting in a safe virtual environment, and then a disciplined execution, as well as monitoring. Again, these chapters alone include topics that can take a volume, and a detailed training by themselves, and I think the author kept a good balance between depth and breadth.Final chapter, Data Distribution, can be considered as a bonus chapter that briefly shows setting up a PostgreSQL server, dealing with foreign tables, managing shards, creating a scalable nextval replacement, and relevant tips and tricks.There are not many negative sides to this very dense PostgreSQL book. A few minor points that deserves mention are its focus on the most popular Linux distributions such as Red Hat, Debian and their derivatives (FreeBSD and other BSD admins will require slightly more effort), some obsolete networking command usage such as ifconfig instead of ip (but then again, this might be helpful for FreeBSD admins), and inconsistent use of command outputs (sometimes no output is shown, whereas for some commands screen-shots or textual outputs are used inconsistently). One might also argue for a slight reordering of chapters for pedagogical concerns, but then again this is highly open to debate and one’s particular preferences when it comes to system and database administration.I can recommend PostgreSQL 9 High Availability Cookbook without hesitation to PostgreSQL DBAs who want to push their skill to the next level, and learn the fundamentals of building highly available PostgreSQL based database clusters. It certainly will not be as easy as reading a book, but it is good to know such a book exists as a very good guide.
Several good guidelines for designing PostgreSQL databases and HA Clusters.For example recipes for counting storage size, IOPS, cpu, memory etc...Also very specific guides how to use different replications and their monitoring + management and HA solutions.
PDF
EPub
Doc
iBooks
rtf
Mobipocket
Kindle
0 komentar:
Posting Komentar