Application of GPRS in the scheduling and Monitoring System of Water Supply Network in the tap water industry
I. project backgroundThe main purpose of the urban water supply network scheduling and monitoring system is to solve the problem that the water supply company collects and monitors the data of the
A simple test of Lanzhou public transit GPRS monitoring and Scheduling System
How can I play with the Lanzhou public transit GPRS monitoring and scheduling system?Can I request the last homepage?
How can I play with Lanzhou public transit GPRS monitoring and
to fundamentally address the performance bottlenecks of the old MapReduce framework, and to promote the longer-term development of the Hadoop framework, starting with the 0.23.0 release, Hadoop's MapReduce framework was completely refactored and changed radically.
the new Hadoop MapReduce framework is named MapReduceV2 or Yarn,Yarn's reconstruction of Mapreducev1, the fundamental idea is to separate the Jobtracker two main functions into a separate component, which two functions are resource m
After these efforts, the file monitoring and scheduling function of the entire system has been basically implemented.
With support for directory scheduling added, the Alpha test is now officially completed in version 0.7 ~ In addition, the system is renamed "task monitoring and sc
The job trigger mechanism based on quartz can solve the time dependence. But what we often encounter is the dependency between the job, for example, job A is successful to execute job B. At the same time we expect to have a log record of the execution of the job, if the job execution fails, can notify us in the way of alarm (mail/SMS), further or have an interface to configure the job, query job performance. Especially now many systems are divided into many modules, especially the application of
Continue to the CLI mode test. this time, a simple real-time monitoring and scheduling function of the database is implemented by using the previous "dead loop with latency" method. Function to be implemented: monitor the user table. if a new record is added, add it to table user2. (It can be used in practical scenarios, such as data processing)
Below is the PHP code (dbtest. php)
The code is as follows:
Continue to the CLI mode test. this time, a simple real-time monitoring and scheduling function of the database is implemented by using the previous "dead loop with latency" method. Function to be implemented: monitor the user table. if a new record is added, add it to table user2. (It can be used in practical scenarios, such as data processing)
Below is the PHP code (dbtest. php)
The code is as follows:
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