Tag: transactions

Feed: DB-Engines.com Blog. Author: Krishna Maheshwari. Blog > Postby , 11 August 2021Tags: Apache Phoenix, DBaaS, HBaseCloudera announced the general availability of the CDP Operational Database Experience (COD) on both AWS & Azure in February and recently announced support of full ACID capabilities within the relational mode of the Operational Database. CDP Operational Database is a fully managed cloud-native transactional database with unparalleled scale, performance, and reliability. Optimized to be deployed anywhere, on any cloud platform, CDP Operational Database aligns with the cloud infrastructure strategy best suited for the business. It enables application developers to deliver prototypes in under an ... Read More

Feed: AWS Architecture Blog. Organizations with online businesses have to be on guard constantly for fraudulent activity, such as fake accounts or payments made with stolen credit cards. One way they try to identify fraudsters is by using fraud detection applications. Some of these applications use machine learning (ML). A common challenge with ML is the need for a large, labeled dataset to create ML models to detect fraud. You will also need the skill set and infrastructure to build, train, deploy, and scale your ML model. In this post, I discuss how to perform fraud detection on a batch ... Read More

Feed: Planet PostgreSQL. Logical Replication was introduced in PostgreSQL-10 and since then it is being improved with each version. Logical Replication is a method to replicate the data selectively unlike physical replication where the data of the entire cluster is copied. This can be used to build a multi-master or bi-directional replication solution. One of the main differences as compared with physical replication was that it allows replicating the transaction only at commit time. This leads to apply lag for large transactions where we need to wait to transfer the data till the transaction is finished. In the upcoming PostgreSQL-14 ... Read More

Feed: R-bloggers. Author: R on Thomas Roh. [This article was first published on R on Thomas Roh, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here) Want to share your content on R-bloggers? click here if you have a blog, or here if you don't. An important aspect of maintaining databases with an application interface is to ensure atomicity. When performing multiple writes on a database, any failures that occur during the operations should not violate any logical rules. The most common analogy is a financial transaction. If person A withdraws X dollars ... Read More

Feed: AWS Big Data Blog. Data lakes on Amazon Simple Storage Service (Amazon S3) have become the default repository for all enterprise data and serve as common choice for a large number of users querying from a variety of analytics and ML tools. Often times you want to ingest data continuously into the data lake from multiple sources and query against the data lake from many analytics tools concurrently. Previously, getting consistent results meant that you had to build custom pipelines to keep data consistent and resulted in delays before the data became available to the consuming tools. We announced AWS Lake Formation transactions, row-level ... Read More

Feed: Planet MySQL; Author: Mirko Ortensi; While testing a XA transactions based workload, I noticed in the output of SHOW ENGINE INNODB STATUS; ---TRANSACTION 108674, ACTIVE (PREPARED) 35 sec 4 lock struct(s), heap size 1136, 5 row lock(s), undo log entries 2 So far, so good. A XA transaction has been PREPARED, and reported as such. But after a while (and I was not really looking at the session), I repeated the command and the output turned to: ---TRANSACTION 108674, ACTIVE (PREPARED) 91 sec recovered trx 4 lock struct(s), heap size 1136, 5 row lock(s), undo log entries 2 I ... Read More

Feed: Planet MySQL; Author: Codership; A significant improvement has come to Galera Cluster 4 for MySQL, in the form of streaming replication. When you are dealing with large (greater than 2GB in size) or long running transactions, previous releases of Galera Cluster would reject the transaction; in the current release transactions can be split into fragmented chunks and those rows can be replicated in chunks to the other nodes even before commit. This is the feature that will remove you from all cluster stall issues due to large transaction processing! While disabled by default, you can use it and configure ... Read More

Feed: Planet PostgreSQL. Last month we released Citus 10 and we’ve received an overwhelming amount of positive feedback on the new columnar compression and single node Citus features, as well as the news that we’ve open sourced the shard rebalancer. The new and exciting Citus 10 features are bringing in lots of new users of Citus open source and the managed Hyperscale (Citus) option in Azure Database for PostgreSQL. And many of you are asking: “How exactly does Citus scale out Postgres?” How does Citus work? As it happens, I recently gave a talk as part of the Vaccination Database ... Read More

Feed: The Connector by Workato. Author: Jon Gitlin; What are the pros and cons of using an RPA solution? What impact does the citizen developer movement have on IT teams? And how many integration and automation tools does the enterprise need? These were just some of the questions that IT leaders Karl Mosgofian, CIO of Gainsight, and Shail Khiyara, a former CMO at Automation Anywhere and CXO at UiPath, tackled at their session—from our Executive Automation Series—, “Perspectives on Automation: RPA vs. CIO.”  To help you walk away with the key insights they shared, we’ll break down the session’s top ... Read More

Feed: AWS Partner Network (APN) Blog. Author: Diego García. By Diego García, Partner Solutions Architect Manager at AWS By Emanuele Cuoccio, Solutions Architect at AWSBy Guillermo Torres, Product Developer Lead at Linke A top priority for the more than 5,000 active customers running SAP workloads on Amazon Web Services (AWS) is to regularly back up their databases to recover them in case of failure. Regarding where to ship the backups, Amazon Simple Storage Service (Amazon S3) is a cost-effective, highly durable, and reliable storage service. This makes it the preferred storage service for storing database backups, both in general and ... Read More