When reviewing the contents of the database of Flare, we encountered a table with 1 billion records. Technically that isn’t a problem. Flare runs on Vapor and uses an Aurora database, so it can handle that scale. But of course, there’s a cost for storing that many records. We dove in and concluded that we could safely delete about 900 million records. They all were created before a specific date. Attempt 1: running a single delete query # A first naive approach would be to run a simple delete query. Performing a delete query like this on a small table will probably work. But when your table contains a billion items, it will likely cause problems. In most cases, a database will try to perform all queries atomically, so no other queries see intermediary results. When a deletion query using a where clause starts, it will lock that table. All other queries that are run against the table will have to wait. Because of the massive size of the table, the deletion query would probably run for hours. The lock would be in place for hours, essentially halting the entire app. So, just running a single query to clean up the table isn’t a good idea. Attempt 2: using a limit # To make the query complete faster, you can add a limit clause. Because the query completes faster, the table lock will be released much faster as well. Other queries wont be halted as long. Here’s an artisan command that performs that query. In the code above, only the 1000 first selected are deleted. Our tables contain many...
Still, unable to plan a holiday? Or dealing with the challenges of individual booking? Well with the help of a travel planner app, we have got all the requirements accumulated under one roof. With the escalation in technology, the way people used to plan their vacations had taken an impressive transformation. They just love to use mobile apps for finding out the famous dining places, destinations, hotels, and everything else related to travel. This had given impeccable momentum to the concept of travel planner mobile app development as it keeps the user away from dealing with any kind of travel headaches. Out there, myriad of traveling businesses are existing, thus definitely it is a must that you embark with the right and excelled travel planner app in order to grab a seat ahead of your competitors. Worldwide Revenue Estimation of Online Travel Booking So, find out the best features that are required to be integrated into the travel planner mobile app, and its basic architecture, that will be for sure embraced and loved by the users. Thus, keep reading the post for identifying the development procedures of travel mobile apps so as to conquer a remarkable business identity. The Framework of the Travel Planner App It is important that the framework of the travel planner app that you are taking to the market is developed to perfection. It needs to be flawless and have the most features that would make it easier for you to connect with your users. If the user intent of your application fails to meet its purpose the popularity would decline and you would struggle...
CAMP WILLIAMS, Utah – Hundreds of military and civilian cyber defense specialists converged on Utah Tuesday as the largest unclassified cyber defense exercise began at Camp Williams. As we learned earlier this year with the Colonial Pipeline and the JBS meatpacking plant computer attacks, cybersecurity is an ever-growing concern for the public. About 800 people from around the country came to Utah for Cyber Shield 2021. It’s a major event for Camp Williams. “What we are doing here at Cyber Shield gives our soldiers real-world experience,” said Lt. Col. Brad Rhodes. The Army National Guard has stepped up its cybersecurity training. Hundreds of military members from across the U.S. are training on defense-focused tactical exercises. “Depending on which open-source material you read, China has 50 – 100,000 cyber operators. They’re building capacity to attack and do incursions and properties around the world,” Rhodes said. “So, it is very important to understand the nation-state actors out there are building these capacities and it’s why we need to build these capacities.” Rhodes has decades of experience in the military. He said the importance of cyber security has grown to the top of the list of priorities. “Inside the military itself, across the department of defense, we are actually a pretty small cadre. Having been in Cyber Com and working some of those missions out there, I will argue we are probably some of the most capable and talented cyber force,” he said. The Cyber Shield training brought in people from cyber departments with large companies like Boeing, Microsoft and Utah’s Pluralsight. “We look at what we are doing here for simulation. We start at website defacement, then...
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