Tag：Monitor
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Time：2019-11-15
Switch the software in the current display to another screen under Windows The test passed under win10. Scene,Under win10 system, expand and connect screen a and B,A screen shows a web page, very long. Want to switch to screen B.Usually drag the web page to B screen with mouse, Is there a shortcut? Win + […]
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Time：2019-11-3
Preface Ganglia is mainly used to monitor the performance of the system software. It is easy to see the working status of each node through the curve. It plays an important role in the reasonable adjustment, allocation of system resources, and improvement of the overall performance of the system. It supports browser access, but it […]
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Time：2019-10-29
Cassandra overview Why Cassandra? What are the impressive features of Cassandra? But let’s take a look at Cassandra’s general situation. A solid theory makes a good teacher Cassandra not only absorbed the successful experience of how to do distributed, copy copy, fault tolerance and so on in dynamo papers, but also absorbed the essence of […]
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Time：2019-10-29
Refer to MSDN documentation https://docs.microsoft.com/zh-cn/windows/desktop/api/winbase/nf-winbase-readdirectorychangesw https://docs.microsoft.com/zh-cn/windows/desktop/api/winnt/ns-winnt-_file_notify_information See code for details # include < iostream > # include < windows.h > # include < process.h > # include < tchar.h > # include < string > using namespace std; typedef void( * CHANGESCALLBACK)(const std::wstring strFileName); /* @Monitor file changes under specified directory @Strdirpath directory to monitor […]
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Time：2019-10-27
1. Preface Alibaba temporal and spatial database TSDB recently launched TSQL, which supports the syntax and functions of standard SQL. Users can use the familiar SQL, not only the query is easier to use, but also the powerful functions of SQL to achieve more complex calculation and analysis. 2. Why do you need to use […]
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Time：2019-10-21
Solutions after Oracle listener is hung by optimization master: An error occurred while starting the oracleorahome90tnslistener service. Information: Cannot start on local computeroracleorahome90tnslistenerService, Error 3: the system could not find the specified path. After checking the information on the Internet, I found that the location of these files is generally determined by the Oracle home […]
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Time：2019-10-9
Welcome to Yun + Community to get more Tencent’s mass technology practice dry goods.~ Author: Yang Jin, Senior Engineer of Tencent Mobile Client DevelopmentPublished by WeTest Quality Open Platform Team in Cloud + CommunityFor commercial reprints, please contact Tencent WeTest for authorization. For non-commercial reprints, please indicate the source.Link to the original text: http://wetest.qq.com/lab/view/367.html WeTest […]
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Time：2019-9-27
Xiao Bai often encounters the problem of database installation when he carries the environment. Among them, the error of Oracle listener is a common one. If he fails, he must reinstall the system. Here I will summarize three ways to solve the problem of listener configuration. 1. Remove listener reconfiguration In the CMD command bar, […]
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Time：2019-9-20
In the distributed architecture environment, the dependency between services is becoming more and more complex. No one can say the impact of the list of failures on the whole system. Building a highly available distributed system is facing great challenges. In the controllable range or environment, the ChaosBlade tool is used to inject various faults […]
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Time：2019-9-16
Overview of Cassandra Why choose Cassandra? What are the impressive features of cassandra? Let’s take a look at cassandra’s current overview. Solid theory, well-known teachers Cassandra not only absorbed the successful experience of how to do distributed, copy copy, fault tolerance and so on in dynamo papers, but also absorbed the essence of LSM single […]
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Time：2019-9-14
1. Preface TSQL, which supports standard SQL grammar and functions, is the latest release of TSDB. Users use familiar SQL, not only is query more simple and easy to use, users can also use the powerful functions of SQL to achieve more complex calculation and analysis. 2. Why do you need to use SQL for […]
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Time：2019-9-10
OpenFalcon-SuitAgent Project address: GitHub Version description The system version is divided as follows Alpha: Internal beta version (not recommended for production environments) Beta: Open beta (not recommended for production environments) Final: final official edition (available for production environment) For the current version, see pom. XML information. Before use This system is used in conjunction with […]
