11/5/2023 0 Comments Ephemeral vs etherealThis leads to an issue that is resolved by the usage of ports: When an application is sending data to a server which has many applications running on it at the IP address specified, how does the sending application avoid sending the data to the incorrect application on the destination server? The solution – Ports server health monitoring applications used by admins that connect to servers used to manage servers). However, the server running the application will also have other applications running on it that are also connected to the network (for e.g. an email client connecting to it’s email server). Thus, IP addresses are used to connect two applications together (for e.g. For example might resolve into 123.12.1.234 (taking a name and translating that to an IP address is done by a DNS server doing a simple look-up from a list). a server will have multiple monitoring applications used by admins to measure and log the health of a server in addition to the primary business application(s) running on it.Īs described in a separate blog post focusing on IP addressing, servers, and the applications that run on them (particularly web applications) have names, and those names 'resolve' into IP addresses using DNS. And devices, servers especially, always have more than one application running – for e.g. TCP is “connection-orientated” which means it's for connecting the applications running on devices together. Such functionality requires another protocol, typically TCP. IP does not handle packet ordering or error checking. Packets however may arrive at their order via dirrerent network routes and thus might not all arrive in their correct order. IP is the primary way in which network connections are made. IP is the address system of networking and has the core function of delivering packets (smaller chunks of larger data) of information from a source device to a target device. Transimission Control Protocol / Internet Protocol (TCP/IP) are two protocols that are used together to provide core functionality within networking. I have also published a blog post looking into IP addresses in further detail, an interrelated subject to IP Ports, which will help complement the information posted here. There is another way to set model configs, of course, and in dbt_project.In continuation of our series delving into how the Cloud works, in this blog post, we will be looking at IP ports – what they are, what they do and how and why are they used. In reading your issue, I also assume you're talking exclusively about in-file config() blocks. I don't usually think of persist_docs and database/ schema/ alias as specific to certain materializations, but of course, they don't apply to ephemeral models. This would require: dbt to know which model configs are specific to certain materializations. Your issue goes one level further-you're not just thinking about raising a warning or error if a generally invalid/unused config is supplied, but rather if an otherwise valid/used config is supplied alongside a materialization that does not use it. We don't have a way to know all the meaningful user-defined configs-short of statically analyzing all the Jinja code in the project, which would be a very cool but very significant undertaking-and that makes it hard for dbt to say with certainty, "Hey, you supplied a config materizalied, but it's actually spelled materialized." sort + dist in dbt-redshift), it's also possible for a custom materialization to use a config(custom_val = 'someting') value via config.get('custom_val'). While dbt does have an enumerated list of its supported configurations, and the ones that each adapter supports (e.g. Thanks you raise an interesting question!Ĭheck out a related conversation over in #2606.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |