Read Log Files

Flume-based Log collection system (i) architecture and Design Issues Guide: 1. Flume-ng and scribe contrast, flume-ng advantage in where? 2. What questions should be considered in architecture design? 3.Agent crash how to solve? Does 4.Collector crash affect? What are the 5.flume-ng reliability (reliability) measures? The log collection system in the United States is responsible for the collection of all business logs from the United States Regiment and to the Hadoop platform respectively ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall a qualified webmaster or seoer must be able to read the Web site's server log files, This log records the site was crawled by search engine traces, to provide the webmaster a strong evidence of the visit, webmaster Friends can be through the Web site log to analyze the search engine spiders crawl situation, analysis of the existence of the site included different ...

Logrote is an application that is used to periodically rename and reuse system error log files. It guarantees that the log files will not take up too much disk space. /etc/logrotate.conf File It logrotate general configuration file. You can use it to set that file to be reused and how often to reuse it. You can set the cycle parameters to be weekly or daily. In the following example, the "weekly" parameter is annotated with "#" and retains the "daily" argument. Cycle entry can also define how many copies of the log to keep http ...

The drawbacks of "editor's note" Hadoop are also as stark as its virtues--large latency, slow response, and complex operation. is widely criticized, but there is demand for the creation, in Hadoop basically laid a large data hegemony, many of the open source project is to make up for the real-time nature of Hadoop as the goal is created, Storm is at this time turned out, Storm is a free open source, distributed, A highly fault-tolerant real-time computing system. The storm makes continuous flow calculation easy, making up for the real-time ...

Http://www.aliyun.com/zixun/aggregation/14223.html "> Application system, the log is an indispensable important part of all the application of error information should be able to find in the log file, 　　Some application system log may be very small, some large application system log is quite large, while the log file must be user-friendly and search, to have a high performance, otherwise it will affect the performance of the application system. Because the log usually involves I.

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology Hall What is a Web log? 　　The so-called website log, is the site of the service what is the site log? The so-called website log, is the site of the server to accept users of various requests when the processing status of the record, whether it is normal processing or a variety of errors, will be recorded in the site log, its ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host Technology Hall website log, is a server-side automatically generated a text record, detailed records the visit details of the website, As a webmaster you, if you need to see access statistics, that use 51.la or Baidu statistical tools can be, but if you want to look at the search engine spiders on time to crawl their own website, then ...

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall through the analysis of Web logs log files we can see users and search engine spiders visit the website behavior data , this data allows us to analyze the user and spider's preference for the site and the health of the site. 　　In the Web log analysis, we mainly need to analyze the spider behavior. Crawled and included in the spider ...

We will combine case studies to see how to use data analysis to actually improve the game. This time we have an example of a mobile end of the card games, simulation board game 21 points. The popular version of the game is free of charge, and users can obtain a version without advertising and additional features after paying a certain fee. The problem is that this 21-point game does not generate the expected revenue. The expectation is to solve this problem, increase user participation and consumption. If the designer of the game does not have the concept of data analysis, and does not collect enough data for analysis, it can only pat the head to make policy changes. And if the idea of data analysis in the design ...

Large flow of log if the direct write Hadoop to Namenode load, so the merge before storage, you can each node log together into a file to write HDFs.  It is synthesized on a regular basis and written to the HDFs. Let's look at the size of the log, 200G DNS log files, I compress to 18G, if you can use Awk Perl, of course, but the processing speed is certainly not distributed as the force. Hadoop Streaming principle Mapper and reducer ...