scio | A Scala API for Apache Beam and Google Cloud Dataflow | GCP library

 by   spotify Scala Version: v0.11.15 License: Apache-2.0

kandi X-RAY | scio Summary

kandi X-RAY | scio Summary

scio is a Scala library typically used in Cloud, GCP applications. scio has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Ecclesiastical Latin IPA: /ˈʃi.o/, [ˈʃiː.o], [ˈʃi.i̯o] Verb: I can, know, understand, have knowledge. Scio is a Scala API for Apache Beam and Google Cloud Dataflow inspired by Apache Spark and Scalding. Scio 0.3.0 and future versions depend on Apache Beam (org.apache.beam) while earlier versions depend on Google Cloud Dataflow SDK (com.google.cloud.dataflow). See this page for a list of breaking changes.
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            kandi-support Support

              scio has a medium active ecosystem.
              It has 2458 star(s) with 500 fork(s). There are 121 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 118 open issues and 1086 have been closed. On average issues are closed in 157 days. There are 23 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of scio is v0.11.15

            kandi-Quality Quality

              scio has 0 bugs and 0 code smells.

            kandi-Security Security

              scio has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              scio code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              scio is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              scio releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 87550 lines of code, 6177 functions and 830 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

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            scio Key Features

            No Key Features are available at this moment for scio.

            scio Examples and Code Snippets

            No Code Snippets are available at this moment for scio.

            Community Discussions

            QUESTION

            how to get json key value in php?
            Asked 2021-Sep-28 at 09:02

            How do I get all of the keys value in this JSON with PHP? my php code is:

            ...

            ANSWER

            Answered 2021-Sep-28 at 08:46

            after is an array, so the $key returned in the outer foreach loop is just an index (an integer). You should include $key => $value again in your second foreach to get the key of each inner object. Further, you can just use a foreach on the $value of your first foreach. You don't have to specify the whole key path down to it again.

            Source https://stackoverflow.com/questions/69358453

            QUESTION

            How to limit PCollection in Apache Beam as soon as possible?
            Asked 2021-Jun-08 at 13:40

            I'm using Apache Beam 2.28.0 on Google Cloud DataFlow (with Scio SDK). I have a large input PCollection (bounded) and I want to limit / sample it to a fixed number of elements, but I want to start the downstream processing as soon as possible.

            Currently, when my input PCollection has e.g. 20M elements and I want to limit it to 1M by using https://beam.apache.org/releases/javadoc/2.28.0/org/apache/beam/sdk/transforms/Sample.html#any-long-

            ...

            ANSWER

            Answered 2021-Jun-08 at 13:40

            OK, so my initial solution for that is to use Stateful DoFn like this (I'm using Scio's Scala SDK as mentioned in the question):

            Source https://stackoverflow.com/questions/67885943

            QUESTION

            SSL_set_tlsext_host_name crashes
            Asked 2021-Mar-29 at 12:29

            I'm trying to use scio_beast in a project. I understand its rather unfinished, but that should not matter much. I've managed to get it working pretty well.

            I'm trying to connect to a server behind CloudFlare now, an I understand I need SNI for that to work.

            Given the following:

            ...

            ANSWER

            Answered 2021-Mar-29 at 12:29

            Turns out this was a linking problem: The app uses another library (WebRTC) that uses boringssl. Somehow the linker didn't complain about duplicate symbols when linking OpenSSL after WebRTC and silently used boringssl's functions. Both MSVC and gcc do it.

            I solved it by moving the websocket/OpenSSL code into a dll, which allows it to properly link against OpenSSL independently from the app.

            Not the prettiest solution, but building WebRTC with OpenSSL doesn't seem to be really supported or at least maintained.

            Source https://stackoverflow.com/questions/66823207

            QUESTION

            What is the best Apache Beam language that supports Google Dataflow?
            Asked 2020-Dec-03 at 09:02

            I'm having a question while I'm writing code with Apache-beam using Dataflow.

            Originally, I wrote code with python, but I checked java, go, and scio among the supported languages.

            Please give us feedback on whether there is a language that has the best performance.

            Or is there more library support?

            It's my personal curiosity, but it's hard to summarize the contents in the document, so I wrote a question. Thank you.

            ...

            ANSWER

            Answered 2020-Dec-03 at 08:59

            It's very opiniated question but I will try to answer from my knowledge and experience.

            Java has been the first language released on Beam with a full set of feature (Streaming, batch, windowing,...).

            Python has been coming after, with limited feature at the beginning and an enrichment afterward (no streaming, then streaming without windowing,...). Beam, and Dataflow, don't process data in Python, it's absolutely not efficient. Python language is a wrapper in Java code to most efficient processing. And that's why Python is always behind Java in term of feature.

            Go SDK is a new one and I never tested it, too long time in Alpha, I never took time to try it.

            Now, on Dataflow, the things have changed as described here. The v2 engine use only the language as description of the pipeline and the processing is performed in C++.

            So, the difference in term of feature could continue to exist, but will disappear a day. The performance will be the same.

            Source https://stackoverflow.com/questions/65121395

            QUESTION

            How to convert vectors of pixels to a numpy array of an image
            Asked 2020-Jun-22 at 14:57

            For example, the background-Mnist that I loaded from a mat file gives 50,000x784 for the training set.

            There should be 50,000 of 28x28 image

            I reshaped the whole thing using

            ...

            ANSWER

            Answered 2020-Jun-21 at 21:12

            The logic in your Python code is correct. It looks like your .mat file is corrupt or at least doesn't contain what you think it should contain. (I have personally had endless headaches with Python/Matlab data exchange.) It's unlikely, but you could try

            Source https://stackoverflow.com/questions/62489379

            QUESTION

            Apache Beam Stateful DoFn Periodically Output All K/V Pairs
            Asked 2020-May-14 at 21:57

            I'm trying to aggregate (per key) a streaming data source in Apache Beam (via Scio) using a stateful DoFn (using @ProcessElement with @StateId ValueState elements). I thought this would be most appropriate for the problem I'm trying to solve. The requirements are:

            • for a given key, records are aggregated (essentially summed) across all time - I don't care about previously computed aggregates, just the most recent
            • keys may be evicted from the state (state.clear()) based on certain conditions that I control
            • Every 5 minutes, regardless if any new keys were seen, all keys that haven't been evicted from the state should be outputted

            Given that this is a streaming pipeline and will be running indefinitely, using a combinePerKey over a global window with accumulating fired panes seems like it will continue to increase its memory footprint and the amount of data it needs to run over time, so I'd like to avoid it. Additionally, when testing this out, (maybe as expected) it simply appends the newly computed aggregates to the output along with the historical input, rather than using the latest value for each key.

            My thought was that using a StatefulDoFn would simply allow me to output all of the global state up until now(), but it seems this isn't a trivial solution. I've seen hintings at using timers to artificially execute callbacks for this, as well as potentially using a slowly growing side input map (How to solve Duplicate values exception when I create PCollectionView>) and somehow flushing this, but this would essentially require iterating over all values in the map rather than joining on it.

            I feel like I might be overlooking something simple to get this working. I'm relatively new to many concepts of windowing and timers in Beam, looking for any advice on how to solve this. Thanks!

            ...

            ANSWER

            Answered 2020-May-07 at 18:52

            You are right that Stateful DoFn should help you here. This is a basic sketch of what you can do. Note that this only outputs the sum without the key. It may not be exactly what you want, but it should help you move forward.

            Source https://stackoverflow.com/questions/61542052

            QUESTION

            Protocol Buffers repeated field
            Asked 2020-Apr-30 at 21:10

            I got this in my .proto file:

            ...

            ANSWER

            Answered 2020-Apr-30 at 21:10

            It's confusing (and bit me too) but you can't assign repeated fields (or messages) directly.

            See Repeated Fields

            Source https://stackoverflow.com/questions/61528779

            QUESTION

            Debugging SCollection contents when running tests
            Asked 2020-Jan-08 at 11:45

            Is there any way to view the contents of an SCollection when running a unit test (PipelineSpec)?

            When running something in production on many machines there would be no way to see the entire collection in one machine, but I wonder is there a way to view the contents of an SCollection (for example when running a unit test in debug mode in intellij).

            ...

            ANSWER

            Answered 2020-Jan-08 at 11:45

            If you want to print debug statements to the console then you can use the debug method which is part of SCollections. A sample code shown below

            Source https://stackoverflow.com/questions/59607728

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install scio

            Download and install the Java Development Kit (JDK) version 8.

            Support

            Getting Started is the best place to start with Scio. If you are new to Apache Beam and distributed data processing, check out the Beam Programming Guide first for a detailed explanation of the Beam programming model and concepts. If you have experience with other Scala data processing libraries, check out this comparison between Scio, Scalding and Spark. Finally check out this document about the relationship between Scio, Beam and Dataflow. Example Scio pipelines and tests can be found under scio-examples. A lot of them are direct ports from Beam's Java examples. See this page for some of them with side-by-side explanation. Also see Big Data Rosetta Code for common data processing code snippets in Scio, Scalding and Spark.
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