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In August 2007 the code used to generate Facebook's home and search page as visitors browse the site was accidentally made public. [6] [7] A configuration problem on a Facebook server caused the PHP code to be displayed instead of the web page the code should have created, raising concerns about how secure private data on the site was.
Facebook has been criticized for having lax enforcement of third-party copyrights for videos uploaded to the service. In 2015, some Facebook pages were accused of plagiarizing videos from YouTube users and re-posting them as their own content using Facebook's video platform, and in some cases, achieving higher levels of engagement and views than the original YouTube posts.
In mid September 2021, The Wall Street Journal began publishing articles on Facebook based on internal documents from unknown provenance. Revelations included reporting of special allowances on posts from high-profile users ("XCheck"), subdued responses to flagged information on human traffickers and drug cartels, a shareholder lawsuit concerning the cost of Facebook (now Meta) CEO Mark ...
MyRocks is open-source software developed at Facebook in order to use MySQL features with RocksDB implementations. It is based on Oracle MySQL 5.6. Starting from version 10.2.5, MariaDB includes MyRocks as an alpha-stage storage engine.
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The phone numbers of at least 200 million Facebook users were found to be exposed on an open online database in September 2019. They included 133 million US users, 18 million from the UK, and 50 million from users in Vietnam. After removing duplicates, the 419 million records have been reduced to 219 million.
YugabyteDB is a distributed SQL database that aims to be strongly transactionally consistent across failure zones (i.e. ACID compliance]. [20] [21] Jepsen testing, the de facto industry standard for verifying correctness, has never fully passed, mainly due to race conditions during schema changes. [22]
Presto (including PrestoDB, and PrestoSQL which was re-branded to Trino) is a distributed query engine for big data using the SQL query language. Its architecture allows users to query data sources such as Hadoop, Cassandra, Kafka, AWS S3, Alluxio, MySQL, MongoDB and Teradata, [1] and allows use of multiple data sources within a query.