Stagemonitor is a Java monitoring agent that tightly integrates with time series databases like Elasticsearch, Graphite and InfluxDB to analyze graphed metrics and Kibana to analyze requests and call stacks. It includes preconfigured Grafana and Kibana dashboards that can be customized. It supports Real Time Metrics, Call tree of the current request including SQL statements to identify the bottlenecks of a request, Execution time and count of database interactions, Analyze the HTTP headers and lot more.

Stagemonitor - Application performance monitoring for java server applications

SkyWalking is an APM (application performance monitor) system, especially designed for microservices, cloud native and container-based (Docker, Kubernetes, Mesos) architectures. SkyWalking is an open source APM system, including monitoring, tracing, diagnosing capabilities for distributed system in Cloud Native architecture. It supports to collect telemetry (metrics, traces, and logs) data from multiple sources and multiple formats.
 
Features:
<ul>
<li>Service, service instance, endpoint metrics analysis</li>
<li>Root cause analysis. Profile the code on the runtime</li>
<li>Service topology map analysis</li>
<li>Service, service instance and endpoint dependency analysis</li>
<li>Slow services and endpoints detected</li>
<li>Performance optimization</li>
<li>Distributed tracing and context propagation</li>
<li>Database access metrics. Detect slow database access statements(including SQL statements)</li>
<li>Alarm</li>
<li>Browser performance monitoring</li>
<li>Infrastructure(VM, network, disk etc.) monitoring</li>
<li>Collaboration across metrics, traces, and logs</li>
</ul>

SkyWalking is an APM (application performance monitor) system, especially designed for microservices, cloud native and container-based (Docker, Kubernetes, Mesos) architectures. SkyWalking is an open source APM system, including monitoring, tracing, diagnosing capabilities for distributed system in Cloud Native architecture. It supports to collect telemetry (metrics, traces, and logs) data from multiple sources and multiple formats.

Skywalking - APM, Application Performance Monitoring System

An application metrics facade for the most popular monitoring tools. Instrument your code with dimensional metrics with a vendor neutral interface and decide on the monitoring backend at the last minute. Micrometer is the instrumentation library underpinning Spring Boot 2.0's metrics collection.
 
As an instrumentation facade, Micrometer allows you to instrument your code with dimensional metrics with a vendor-neutral interface and decide on the monitoring system as a last step. Instrumenting your core library code with Micrometer allows the libraries to be included in applications that ship metrics to different backends. It supports out-of-the-box instrumentation of caches, the class loader, garbage collection, processor utilization, thread pools, and more tailored to actionable insight.

 An application metrics facade for the most popular monitoring tools. Instrument your code with dimensional metrics with a vendor neutral interface and decide on the monitoring backend at the last minute. Micrometer is the instrumentation library underpinning Spring Boot 2.0's metrics collection.

Micrometer - An application metrics facade for the most popular monitoring tools

The goal of JavaMelody is to monitor Java or Java EE application servers in QA and production environments. It is not a tool to simulate requests from users, it is a tool to measure and calculate statistics on real operation of an application depending on the usage of the application by users. JavaMelody is easy to integrate in most applications and is lightweight (no profiling and no database).

Javamelody - Monitoring of JavaEE applications

Pinpoint is an APM (Application Performance Management) tool for large-scale distributed systems written in Java. Modelled after Dapper, Pinpoint provides a solution to help analyze the overall structure of the system and how components within them are interconnected by tracing transactions across distributed applications.
 
Services nowadays often consist of many different components, communicating amongst themselves as well as making API calls to external services. How each and every transaction gets executed is often left as a blackbox. Pinpoint traces transaction flows between these components and provides a clear view to identify problem areas and potential bottlenecks.

Pinpoint is an APM (Application Performance Management) tool for large-scale distributed systems written in Java. Modelled after Dapper, Pinpoint provides a solution to help analyze the overall structure of the system and how components within them are interconnected by tracing transactions across distributed applications.

Pinpoint - Application Performance Management tool for large-scale distributed systems in Java

SkyWalking is an APM(application performance monitor) system, especially designed for microservices, cloud native and container-based (Docker, Kubernetes, Mesos) architectures. It provides distributed tracing, service mesh telemetry analysis, metric aggregation and visualization all-in-one solution. Its feature include:
<ul>
<li>Service, service instance, endpoint metrics analysis</li>
<li>Root cause analysis</li>
<li>Service topology map analysis</li>
<li>Service, service instance and endpoint dependency analysis</li>
<li>Slow services and endpoints detected</li>
<li>Performance optimization</li>
<li>Distributed tracing and context propagation</li>
<li>Database access metric. Detect slow database access statements(including SQL statements).</li>
<li>Alarm</li>
</ul>

SkyWalking is an APM(application performance monitor) system, especially designed for microservices, cloud native and container-based (Docker, Kubernetes, Mesos) architectures. It provides distributed tracing, service mesh telemetry analysis, metric aggregation and visualization all-in-one solution.

Apache Skywalking - A distributed tracing system, and APM ( Application Performance Monitoring )

SCOUTER is an open source APM like new relic and appdynamics. (APM means Application Performance Monitoring or Application Performance Management.) SCOUTER shows metrics about Users (Active user, Recently used user, Today visitor), Services ( Active service, TPS, Response time, Application profiles(method profile, sql profile, external call profile etc) and Resources (Cpu, Memory, Network and Heap usage, Connection pools etc).   


    

SCOUTER - APM (Application Performance Management) tool.

OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools. 
 
The OpenTelemetry Collector offers a vendor-agnostic implementation on how to receive, process, and export telemetry data in a seamless way. In addition, it removes the need to run, operate, and maintain multiple agents/collectors in order to support open-source observability data formats (e.g. Jaeger, Prometheus, etc.) sending to multiple open-source or commercial back-ends.

OpenTelemetry provides a single set of APIs, libraries, agents, and collector services to capture distributed traces and metrics from your application. You can analyze them using Prometheus, Jaeger, and other observability tools. 



OpenTelemetry makes robust, portable telemetry a built-in feature of cloud-native software

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