spf4j | Simple performance framework for java | Monitoring library

by zolyfarkas Java Version: 8.9.7 License: No License

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | spf4j Summary

spf4j is a Java library typically used in Performance Management, Monitoring applications. spf4j has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can download it from GitHub, Maven.

IDE Preference: Netbeans. For Eclipse you need implemented for best experience. For InteliJ you need implemented for best experience. Build with Maven 3.5.2 Run maven with JDK 1.8. To build project all you need to do is: mvn install. Spf4j builds against [an avro fork] which is published to github repos. Until Github removes the authentication requirements, you will need to configure your authentication credentials in your settings.xml. ([see] the avro fork readme for more detail). Please use -Dgpg.skip=true argument is you do not have gpg installed or configured. You can run the spf4j unit tests with JDK 11 by activating the jdk-11-validation profile. (-P jdk-11-validation profile) please define java11.home property with the home of JDK 11 in your settings.xml. See pom.xml for other profiles for openjdk, zolyfarkas/avro fork validations.

Support

Quality

Security

License

Reuse

Support

spf4j has a low active ecosystem.

It has 199 star(s) with 31 fork(s). There are 21 watchers for this library.

It had no major release in the last 12 months.

There are 11 open issues and 39 have been closed. On average issues are closed in 102 days. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of spf4j is 8.9.7

Quality

spf4j has 0 bugs and 0 code smells.

Security

spf4j has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

spf4j code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

spf4j does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

spf4j releases are available to install and integrate.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

spf4j saves you 73261 person hours of effort in developing the same functionality from scratch.

It has 87437 lines of code, 7260 functions and 1065 files.

It has medium code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed spf4j and discovered the below as its top functions. This is intended to give you an instant insight into spf4j implemented functionality, and help decide if they suit your requirements.

Returns the JVM arguments .
Project a list into a schema .
Applies the given pattern .
Adds the retry policy .
Write the given schema to the appendable .
Gets the javadoc executable .
Write a single record .
Helper method for logging i18n messages .
Overrides the default values of the target schema with the given schema .
Returns the number of runs that should be placed at the specified offset .

Get all kandi verified functions for this library.

spf4j Key Features

No Key Features are available at this moment for spf4j.

spf4j Examples and Code Snippets

No Code Snippets are available at this moment for spf4j.

Community Discussions

Trending Discussions on spf4j

How to monitor performance of individual REST API endpoints using the SPF4J Java Profiler?

How does the SPF4J Java Profiler write buffered metrics to files?

QUESTION

How to monitor performance of individual REST API endpoints using the SPF4J Java Profiler?

Asked 2020-Jul-05 at 19:41

I have a number of REST API endpoints and I would like to measure the timing metrics for each separately. Annotating the methods with @PerformanceMonitor works, but the recorderSource field takes a class and there's no way to pass a unique forWhat descriptor for each method. Do I need to create a child class for every endpoint + HTTP method just to define a unique forWhat string? That does not seem scalable. Am I missing something?

Here's an example of a specific recorder source:

...

ANSWER

Answered 2020-Jul-05 at 19:41

If you use recorderSource=RecorderSourceInstance.Rs15m.class

The forWhat in your case will be "RecorderSourceInstance.Rs15m, YourClassName.getAllProducts"

So you would not need to create custom RecorderSourceInstance's for every method.

Another option you have is to measure your metrics at a lower level, in a servlet filter like at. This will get you a more complete picture of the server side execution time (will include ser/deser, io...).

You can see this metric in action at or in prometheus format. This live demo is running on GKE, and the source code is at. See the wiki's for more details on some of the ideas demonstrated in this demo.

Source https://stackoverflow.com/questions/62741317

QUESTION

How does the SPF4J Java Profiler write buffered metrics to files?

Asked 2020-Jul-04 at 09:48

I wrote a simple test to capture timing metrics using the SPF4J (Simple Profiler Framework For Java) MeasurementRecorder. I'm running a simple for loop and capturing time of a random sleep from 100-200 ms as shown in the complete code sample below.

When I run the test, the Time-Series DataBase (TSDB) files are created successfully, but they're empty while the test is running (around 2 mins). The buffered data are written to files when the application completes, but samples at the end are missing and the last one is truncated, like the buffer is not getting flushed properly.

If the application never terminates (e.g. web service), when will the buffered metrics be written to file - on a timer, or when a certain amount of data is buffered? Is this configurable and, if so, how?

...

ANSWER

Answered 2020-Jul-04 at 09:48

You will need to set the system property: spf4j.perf.ms.periodicFlush=true to enable the periodic flush.

Source https://stackoverflow.com/questions/62719895

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

Vulnerabilities

No vulnerabilities reported

Install spf4j

You can download it from GitHub, Maven.
You can use spf4j like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the spf4j component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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