sarama | Sarama is a Go library for Apache Kafka | Pub Sub library

 by   Shopify Go Version: v1.38.1 License: MIT

kandi X-RAY | sarama Summary

kandi X-RAY | sarama Summary

sarama is a Go library typically used in Messaging, Pub Sub, Kafka applications. sarama has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Sarama is an MIT-licensed Go client library for Apache Kafka.
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            kandi-support Support

              sarama has a medium active ecosystem.
              It has 10048 star(s) with 1667 fork(s). There are 664 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 300 open issues and 919 have been closed. On average issues are closed in 60 days. There are 27 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of sarama is v1.38.1

            kandi-Quality Quality

              sarama has 0 bugs and 0 code smells.

            kandi-Security Security

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

            kandi-License License

              sarama is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              sarama releases are available to install and integrate.
              Installation instructions are available. Examples and code snippets are not available.
              It has 42710 lines of code, 2147 functions and 269 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

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            sarama Key Features

            No Key Features are available at this moment for sarama.

            sarama Examples and Code Snippets

            No Code Snippets are available at this moment for sarama.

            Community Discussions

            QUESTION

            gopls returns the error "gopls: no packages returned: packages.Load error" for github.com/Shopify/sarama
            Asked 2022-Apr-08 at 03:48

            I've checked out the main branch of github.com/Shopify/sarama (at commit 947343309601b4eb3c2fa3e7d15d701b503dd491 ) but I notice that in VS Code I can't "Go to definition" as usual. If I hover over the package name sarama in functional_consumer_group_test.go, I get the linter warning

            ...

            ANSWER

            Answered 2022-Apr-08 at 00:39

            Following https://www.ryanchapin.com/configuring-vscode-to-use-build-tags-in-golang-to-separate-integration-and-unit-test-code/, I had to create a .vscode/settings.json file in the repository's root directory and add the following contents:

            Source https://stackoverflow.com/questions/71790348

            QUESTION

            How to add consumerGroup for a topic in kafka using Shopify/sarama golang library?
            Asked 2022-Jan-20 at 15:06

            In the sarama library there is an option to initialize NewConsumerGroup but how to hook it hook i t up to NewConumer?

            ...

            ANSWER

            Answered 2022-Jan-20 at 15:06

            NewConsumerGroup creates its own Consumer, so there's nothing for you to hook it to

            Source: https://github.com/Shopify/sarama/blob/main/consumer_group.go#L105

            Source https://stackoverflow.com/questions/70782622

            QUESTION

            What does pprof -call_tree do?
            Asked 2021-Dec-10 at 21:45

            go tool pprof has a -call_tree option that, according to -help, should “Create a context-sensitive call tree”. However, pprof -tree on a CPU profile gives me the exact same output with and without this option. It looks like this (one representative node):

            ...

            ANSWER

            Answered 2021-Dec-10 at 21:45

            Why doesn’t -call_tree affect this output of -tree

            I think the -call_tree option doesn't change the output of -tree the outputs are not actually a tree, it outputs the nodes of the tree(more on this in the extra credit section).

            In general, what does -call_tree do?

            You can see a difference when you take a look at images generated with the -png flag, without the -call_tree flag: And with the -call_tree flag:

            So instead of having 1 call tree, pprof attempts to create seperate trees based on context. In my case(will list them since the text on the image is not readable) the roots are:

            • testing.(*B).launch (benchmark/test framework)
            • runtime.gcBgMarkWorker (part of the runtime GC)
            • runtime.bgsweep (part of the runtime GC)
            • runtime.mcall (part of the runtime scheduler)
            • runtime.morestack (something to do with the stack :) )

            In the non -call_tree image these nodes are still present, but start mid tree, as if our code calls these background processed directly.

            Basically basically what the option does is remove/hide infrequent calls between functions, so you will end up with a tree for each set of functions that call each other frequently.

            I haven't tested this but I imagine that pprof will do this context aware tree separation for user code as well. All in all it returns a subjectively more readable tree, or at least a more relevant one.

            What is the exact meaning of the output node I showed above?

            The -tree option attempts to output the tree, as shows in the images. But since it is text output it shows you 1 node of the tree at a time, the non indented line in the context column is the current node, the rows above are nodes that call the current node, the rows below the nodes which this one calls (the arrows in the image).

            The calls% is a the "weight" of the the incoming or outgoing edge, so indeed the percentage of calls from or to a function.

            What documents could I read to answer the above questions?

            If figured all of this out by looking at the source code, here are some key parts, in case you are interested:

            Source https://stackoverflow.com/questions/70291088

            QUESTION

            Error installing golang Shopify/sarama Kafka library
            Asked 2021-Sep-25 at 21:45

            Getting following error when installing golang github.com/Shopify/sarama kafka library

            ...

            ANSWER

            Answered 2021-Sep-25 at 21:45

            ioutil.Discard and ioutil.ReadAll has moved to io.Discard and io.ReadAll respectively as of Go 1.16, You should use Go 1.16 or use an older version of sarama (I think v1.20.1 should work for go1.13)

            Also from sarama's README:

            Sarama provides a "2 releases + 2 months" compatibility guarantee: we support the two latest stable releases of Kafka and Go, and we provide a two month grace period for older releases. This means we currently officially support Go 1.15 through 1.16, and Kafka 2.7 through 2.8, although older releases are still likely to work.

            Source https://stackoverflow.com/questions/69329817

            QUESTION

            Send data in cloudevents format to Kafka topic
            Asked 2021-Sep-22 at 13:06

            Right now I have this code and it works fine. (It sends some json format data to Kafka topic)

            ...

            ANSWER

            Answered 2021-Sep-22 at 13:06

            QUESTION

            Strimzi - Connecting to External OpenShift Route Listener with SCRAM-SHA-512 Authentication with TLS with Sarama
            Asked 2021-Aug-18 at 15:49

            I have a Strimzi cluster setup with the follow yaml.

            ...

            ANSWER

            Answered 2021-Aug-18 at 15:49

            So it turns out that the problem was mainly a command line issue. I kept trying to use the -ca flag when I should have just used only the -certificate flag. I also needed to add the -verify option flag as well. So the command that allowed me to produce was using the following -

            Source https://stackoverflow.com/questions/68823733

            QUESTION

            Golang delete all records from a topic in Kafka
            Asked 2021-Jul-20 at 09:19

            Hi I am writing a service in Go and Kafka and I need to implement a delete all endpoint which would delete all records from a specific topic. However I can not find a proper way to do that. I am using the Sarama library for Kafka.

            So far the only two ways I can find to implement delete all is by deleting the topic which does not seem to be an efficient way to handle this problem and the second one is using the DeleteRecords function from the Sarama library, however this function Deletes records whose offset is smaller than the given offset of the corresponding partition. Which means that I have to get the latest offset first.

            Basically I am looking for the best way to do such a thing. Could anyone help me? What are the best practices? Maybe I have missed something. I would really appreciate some examples. Thank you!

            ...

            ANSWER

            Answered 2021-Jul-20 at 09:19

            If you want to prune all the messages, another way to do that is to reduce the retention of the topic to a small value (e.g. 100ms). Wait for the brokers to remove all the records from the topic and then set the topic retention to its original value. Here’s how to do it.

            First, set the retention time to 100 milliseconds.

            Source https://stackoverflow.com/questions/68450804

            QUESTION

            Using Kafka-Go, why am I seeing what appears to be batching reads/writes? Is there a config I am missing?
            Asked 2020-Nov-22 at 17:21

            I'm going to be switching from RabbitMQ to Kafka. This is just a simple spike to see how Kafka operates. I'm not sure if there are settings that I am missing, if it is my code, if it is Kafka-Go, or if this is expected Kafka behavior.

            I've tried adjusting the BatchSize as well as the BatchTimeout but neither have had an impact.

            The code below creates a topic with 6 partitions and a replication factor of 3. It then produces an incrementing message every 100ms. It launches 6 consumers, one for each partition. Both reading and writing are performed in go routines.

            In the log below, it goes 7 seconds without receiving a message and then receives bursts. I'm using Confluent's platform so I recognize that there will be some network latency but not to the degree that I'm seeing.

            ...

            ANSWER

            Answered 2020-Nov-22 at 17:21

            You need to change ReaderConfig.MinBytes, otherwise segmentio/kafka-go will set it to 1e6 = 1 MB, and in that case, Kafka will wait for that much data to accumulate before answering the request.

            Source https://stackoverflow.com/questions/64656638

            QUESTION

            Testing log output from GitHub.com/Shopify/sarama
            Asked 2020-Sep-25 at 23:59

            I'm trying to write a unit test for a functional option that configure's github.com/Shopify/sarama's Logger. After running a Docker container with Kafka like so,

            ...

            ANSWER

            Answered 2020-Sep-25 at 23:59

            It turns out I just needed to call

            Source https://stackoverflow.com/questions/64072565

            QUESTION

            Mongodb doesn't retrieve all documents in a collection with 2 million records using cursor
            Asked 2020-Sep-18 at 07:17

            I have a collections of 2,000,000 records

            ...

            ANSWER

            Answered 2020-Sep-18 at 07:17

            Your loop fetching the results may end early because you are using the same ctx context for iterating over the results which has a 10 seconds timeout.

            Which means if retrieving and processing the 2 million records (including connecting) takes more than 10 seconds, the context will be cancelled and thus the cursor will also report an error.

            Note that setting FindOptions.NoCursorTimeout to true is only to prevent cursor timeout for inactivity, it does not override the used context's timeout.

            Use another context for executing the query and iterating over the results, one that does not have a timeout, e.g. context.Background().

            Also note that for constructing the options for find, use the helper methods, so it may look as simple and as elegant as this:

            Source https://stackoverflow.com/questions/63950411

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

            Vulnerabilities

            No vulnerabilities reported

            Install sarama

            You might also want to look at the Frequently Asked Questions.
            API documentation and examples are available via pkg.go.dev.
            Mocks for testing are available in the mocks subpackage.
            The examples directory contains more elaborate example applications.
            The tools directory contains command line tools that can be useful for testing, diagnostics, and instrumentation.

            Support

            Get started by checking our contribution guidelines.Read the Sarama wiki for more technical and design details.The Kafka Protocol Specification contains a wealth of useful information.For more general issues, there is a google group for Kafka client developers.If you have any questions, just ask!
            Find more information at:

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