weaver | Trace Go program execution with uprobes and eBPF | Monitoring library

 by   grantseltzer Go Version: v0.1 License: MPL-2.0

kandi X-RAY | weaver Summary

kandi X-RAY | weaver Summary

weaver is a Go library typically used in Performance Management, Monitoring applications. weaver has no bugs, it has no vulnerabilities, it has a Weak Copyleft License and it has low support. You can download it from GitHub.

PLEASE READ! - I am currently refactoring Weaver to use libbpf instead of bcc which would include various other major improvements. If you're currently using weaver please be aware that features/bug fixes are being held off until the major refactor occurs. This will be tracked in the branch "refactor". Weaver is a CLI tool that allows you to trace Go programs in order to inspect what values are passed to specified functions. It leverages eBPF attached to uprobes.
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            kandi-support Support

              weaver has a low active ecosystem.
              It has 271 star(s) with 18 fork(s). There are 12 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 18 open issues and 20 have been closed. On average issues are closed in 35 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of weaver is v0.1

            kandi-Quality Quality

              weaver has no bugs reported.

            kandi-Security Security

              weaver has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              weaver is licensed under the MPL-2.0 License. This license is Weak Copyleft.
              Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

            kandi-Reuse Reuse

              weaver releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of weaver
            Get all kandi verified functions for this library.

            weaver Key Features

            No Key Features are available at this moment for weaver.

            weaver Examples and Code Snippets

            No Code Snippets are available at this moment for weaver.

            Community Discussions

            QUESTION

            Merge two json files into a single file Python
            Asked 2021-May-25 at 14:05

            I'm calling a paginated API and storing the data of different pages into separate files. The two files are added below.

            file1.json

            ...

            ANSWER

            Answered 2021-May-25 at 13:19

            You can use extend to extend a list with another list:

            Source https://stackoverflow.com/questions/67688621

            QUESTION

            Can't add javaagent for AspectJ
            Asked 2021-May-03 at 12:51

            I have an old Java6 Application, and I'm trying to add some automatic and global log for tracing every call in every method. It runs on a JBoss 4.2.3.

            I follow this example : https://docs.spring.io/spring-framework/docs/current/reference/html/core.html#aop-aj-ltw-first-example

            I have my profiling class :

            ...

            ANSWER

            Answered 2021-May-02 at 10:24

            I am not a Spring user, but when answering AspectJ LTW questions here I often noticed a certain discrepancy between the Spring documentation mentioning the need for the Spring Instrument Java agent only and the real situation in which there are ways to configure Spring like that, but it is tricky. The simplest approach by far is to also add the AspectJ Weaver agent to the command line, i.e. to use something like (on a single line, of course)

            Source https://stackoverflow.com/questions/67325255

            QUESTION

            REST APIs: How to POST several entries from a (JSON) file in a python loop?
            Asked 2021-Apr-29 at 11:16

            I am new in python and REST world.

            My Python script

            ...

            ANSWER

            Answered 2021-Apr-28 at 18:07

            A simple change in your for iteration would help:

            Source https://stackoverflow.com/questions/67305530

            QUESTION

            how to display cities in one dropdown based on selected state in other dropdown using json data in angular ionic?
            Asked 2021-Apr-27 at 16:44

            following are my files for html, .ts and json . As json data was very extensive therefore i have just added a few states and their cities. my 1st dropdown is showing all states. Now I want to match my 1st dropdown's selected value of state with a key "state" in "cities" object in my json file so i can populate 2nd dropdown with cities relevant to that state. and I want to do this in function "getCitiesForSelectedState". please help me find solution for this.

            //.ts file

            ...

            ANSWER

            Answered 2021-Apr-27 at 16:44

            You can do it with the $event parameter. Make sure to compare your values safely.

            If your value is not in the right type or has spaces or unwanted chars, this c.state == val might not work.

            You can use the trim function to compare your value safely: c.state.trim() == val.trim()

            HTML

            Source https://stackoverflow.com/questions/67284495

            QUESTION

            AspectJ weaver gives me "incompatible return type applying to constructor-execution" when using @Around advice for constructor
            Asked 2021-Apr-21 at 18:03

            I'm attempting to inject a context for tracing into newly created Callable objects using @Around advice:

            ...

            ANSWER

            Answered 2021-Apr-21 at 18:03

            Firstly, you cannot replace a returned object from within the constructor execution(), because a constructor is not a normal method which could e.g. have a supertype or interface as return type. A constructor always returns exactly the object of the defined type, nothing else. This is not even an AspectJ limitation but a JVM limitation. With a byte code engineering library such as ASM you would have the same limitation.

            So the best you can do in AspectJ is to replace the returned object in the constructor call(), but the object must also match the expected type. Unfortunately, OpenTelemetry returns a lambda instance which cannot be cast to the exact anonymous Callable subtype you have in your code. This means, there is nothing you can do here with that kind of code structure.

            As a workaround, you can intercept calls to methods taking Callable instances, such as ExecutorService.submit(Callable). You just need to make sure to capture all relevant ones. For example:

            Source https://stackoverflow.com/questions/67188694

            QUESTION

            AspectJ does not runs without -javaagent argument
            Asked 2021-Apr-17 at 04:55

            I'm trying to use AspectJ in a simple java app, without using of Spring. project is controlled by maven.

            Here is the project code, you can see it also on a GitHub

            App.java

            ...

            ANSWER

            Answered 2021-Apr-17 at 04:55

            A simple solution/workaround was to add aspectj-maven-plugin for compile-time weaving(in this case aop.xml file is not needed anymore)

            and package projects with its dependencies in to executable jar using maven-assembly-plugin (there are other ways also to package executable jars with libs/dependencies)

            pom.xml

            Source https://stackoverflow.com/questions/67105552

            QUESTION

            AspectJ inside a testing framework
            Asked 2021-Apr-13 at 06:54

            I'm trying to apply a cross cutting concern which is logging with AspectJ and a test framework called Katalon which uses Groovy and Java. I found that the best weaving type appropriate here is load-time weaving which requires a META-INF folder and an Aop.xml. I tried to put my aop.xml in multiple places but I think aspectj is unable to find it. This is the structure of my project:

            Here is my aop.xml file content:

            ...

            ANSWER

            Answered 2021-Apr-13 at 06:54

            My first guess, not having seen your real project, is that you should move the weaver options out of the aspect declaration section like this:

            Source https://stackoverflow.com/questions/67051936

            QUESTION

            cpp arrays terminate called after throwing an instance of std::bad_alloc
            Asked 2021-Mar-24 at 06:29

            I am sorry if this is really basic question I am just starting out with programming I have looked up online couldn't find anything to solve this issue. while running my program I encountered this message "what(): std::bad_alloc" this is the first time ever for me, the program will run 2 out 5 times and for the rest I get this error in console. I don't know if something is wrong with my system or code. I really appreciate any feedback.

            here is the code I am trying to write function for sorting and searching.

            ...

            ANSWER

            Answered 2021-Mar-24 at 06:29

            Your program is throwing an std::bad_alloc exception at some point and, since your are not handling this exception, it halts. This is due to some flaw on memory management.

            Check your bubble-sort algorithm. Specifically, the for loop:

            Source https://stackoverflow.com/questions/66775523

            QUESTION

            AspectJ Aspects not getting triggered in Maven Project
            Asked 2021-Mar-23 at 22:14

            I am trying to build a POC project using AspectJ without using Spring AOP. I am using an annotation based approach where I want to run the aspect @Around the method which has been annotated with an annotation. For some reason my aspects don't get triggered. Below is my code:

            pom.xml

            ...

            ANSWER

            Answered 2021-Mar-23 at 15:26

            You are using AspectJ Maven Plugin, i.e. you are going to use compile-time weaving. Therefore, you do not need aop.xml because that one is used for load-time weaving. So you can delete it.

            During compilation you should get a compile error:

            Source https://stackoverflow.com/questions/66734262

            QUESTION

            ionic 6 - ngFor not showing data firebase realtime database
            Asked 2021-Mar-06 at 18:55

            I tried all ways to display data from the database (Firebase realtime database) There're following config rules:

            ...

            ANSWER

            Answered 2021-Mar-05 at 07:07

            Your "data" is an object of JSON, but not an array.

            Source https://stackoverflow.com/questions/66487535

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

            Vulnerabilities

            No vulnerabilities reported

            Install weaver

            There are two modes of operation, one that uses a 'functions file', and one that extracts a symbol table from a passed binary and filters by Go packages. More information on functionality in docs.
            make will compile the weaver binary to bin/weaver (It also creates the smoke test binary and print-stack utility).

            Support

            Currently weaver supports basic data types but getting support for user defined types is a high priority. Getting following types defined are a work in progress:.
            Find more information at:

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            CLONE
          • HTTPS

            https://github.com/grantseltzer/weaver.git

          • CLI

            gh repo clone grantseltzer/weaver

          • sshUrl

            git@github.com:grantseltzer/weaver.git

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