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How do I get my Node.js app which is clustered to run a task only once?


How do I get started with Node.jsHow do I get the path to the current script with Node.js?How to get GET (query string) variables in Express.js on Node.js?Getting id of worker from inside worker processHow to run Cron Job in Node.js application that uses cluster module?Java cluster, run task only once“Direct Response with Node.js” - Sending HTTP response with different Node.js process (different than main process)NodeJS cluster and database connectionNode.js Cluster: Managing WorkersMigrate a Node.js Cluster app to StrongLoop ProcessManager













0















I am using a cluster for my Node.js app. See: https://nodejs.org/api/cluster.html



This has been very useful for many reasons, but now I face a challenge. I want to add a feature to my app which sends a HTTP request to another server, and then gets the response, extracts the data and then saves it in a MySQL database.



I am facing an issue where this feature is inserting duplicates into my database because it is running the HTTP request multiple times (one for each worker on my cluster).



How can I run this process only once when I have 4 workers in my cluster??










share|improve this question


























    0















    I am using a cluster for my Node.js app. See: https://nodejs.org/api/cluster.html



    This has been very useful for many reasons, but now I face a challenge. I want to add a feature to my app which sends a HTTP request to another server, and then gets the response, extracts the data and then saves it in a MySQL database.



    I am facing an issue where this feature is inserting duplicates into my database because it is running the HTTP request multiple times (one for each worker on my cluster).



    How can I run this process only once when I have 4 workers in my cluster??










    share|improve this question
























      0












      0








      0








      I am using a cluster for my Node.js app. See: https://nodejs.org/api/cluster.html



      This has been very useful for many reasons, but now I face a challenge. I want to add a feature to my app which sends a HTTP request to another server, and then gets the response, extracts the data and then saves it in a MySQL database.



      I am facing an issue where this feature is inserting duplicates into my database because it is running the HTTP request multiple times (one for each worker on my cluster).



      How can I run this process only once when I have 4 workers in my cluster??










      share|improve this question














      I am using a cluster for my Node.js app. See: https://nodejs.org/api/cluster.html



      This has been very useful for many reasons, but now I face a challenge. I want to add a feature to my app which sends a HTTP request to another server, and then gets the response, extracts the data and then saves it in a MySQL database.



      I am facing an issue where this feature is inserting duplicates into my database because it is running the HTTP request multiple times (one for each worker on my cluster).



      How can I run this process only once when I have 4 workers in my cluster??







      node.js http insert cluster-computing worker






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 7 at 1:29









      PaulPaul

      418




      418






















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