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Apache Kafka is a distributed event store and stream-processing platform. It is an open-source system developed by the Apache Software Foundation written in Java and Scala.The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds.
The second generation uses the pull mode in data transportation, and file system in data storage. It paid more attention to stability and reliability, and shows a comparable performance to the first generation in response time and Kafka on log collection. The third generation combines the Pull mode with some Push operations.
pull [58] push N/A [nb 65] clone pull [58] Unknown add remove move N/A pull – push record revert send -o [nb 66] rebase Fossil: new – open clone pull push branch – commit –branch clone/open update N/A add rm/del mv/rename N/A merge commit revert Fossil's repository is single sqlite file itself N/A Git: init – init –bare clone ...
By way of illustration, the following code fragments demonstrate detection of patterns within event streams. The first is an example of processing a data stream using a continuous SQL query (a query that executes forever processing arriving data based on timestamps and window duration).
Email may also be a push system: SMTP is a push protocol (see Push e-mail). However, the last step—from mail server to desktop computer—typically uses a pull protocol like POP3 or IMAP. Modern e-mail clients make this step seem instantaneous by repeatedly polling the mail server, frequently checking it for new mail.
A new NATO command in the German city of Wiesbaden has taken up its work to coordinate Western military aid for Ukraine, the alliance's Secretary-General Mark Rutte said on Wednesday. The command ...
The observer design pattern is a behavioural pattern listed among the 23 well-known "Gang of Four" design patterns that address recurring design challenges in order to design flexible and reusable object-oriented software, yielding objects that are easier to implement, change, test and reuse.
DC Studios’ head James Gunn is defending the delay of “The Batman 2” to 2027. It was announced Friday that Matt Revees’ follow-up to 2022’s “The Batman” was postponed from Oct. 2 ...