FusionReactor Cloud (the SaaS solution) has a lot of functionality that the traditional on-premise Java agent (On-Prem) has, but has struggled with the perception that its not as ‘real-time’.

Both Cloud and On-Prem have live mode for many features; both have the same information and update as quickly.

Live Graphs

Graphs in both FusionReactor On-Prem and Cloud support live mode i.e. updating every second.

Below are screenshots showing the main metrics updating live (every 1 second). For On-Prem, you can see the WebMetrics page with a refresh rate of 1 second. For Cloud, you can see the server graphs with the WebServer profile and ‘live mode’ enabled.

Cloud – Graphs Page
On-Prem – WebMetrics

To enable live mode in Cloud, simply click the ‘Live mode’ which can be found along side the time picker. Enabling live mode with the On-Prem solution, you simply adjust the refresh interval to 1 second.

Cloud – Live Mode Toggle
On-Prem – Refresh Interval

Both pages show the same data and both come from FusionReactor’s live metrics. The only difference is in the UI graph rendering – On-Prem updates the graphs all at the same time and Cloud updates each one asynchronously.

Custom Graphs

FusionReactor Cloud supports custom graphs (even custom metrics) which allow you to customize the series that the graphs show. These can be set to run in live mode (update every second) like On-Prem, but On-Prem only supports showing 1 series at a time on its custom metrics page.

Cloud – Live Mode with a Custom Graph

Running Transactions

FusionReactor On-Prem and Cloud both have the ability to show running requests. FusionReactor On-Prem has a page (Requests -> Activity) that updates every second to show the active requests being tracked by FusionReactor and how long they have been running.

You can see this for yourself on the FR demo site.

FusionReactor Cloud has the exact same functionality, available from the Transactions page when you select ‘Running’ requests.

Both views will show the profiler link if the slow request has been running for longer than the threshold for the profiler.

Both views can be set to refresh every second.

Stacktrace

Both On-Prem and Cloud versions of FusionReactor have the ability to show the current threads and their status, as well as to show the stacktrace for all the live threads.

Cloud – Thread List
Cloud – StackTrace All
On-Prem – Thread List
On-Prem – StackTrace All

Thread Visualizer

The thread visualizer is available in both FusionReactor On-Prem and Cloud. Both update every second to show you which threads are running.

The view can be sorted by CPU time, allowing you to track down CPU usage to a specific thread or a set of threads.

Cloud – Threads -> Thread Visualizer
On-Prem – Resources -> Thread Visualizer

CPU Sampler

The CPU sampler in both the Cloud and On-Prem shows which threads are using the most CPU, similar to the Thread Visualizer. Both update every second showing real time updates / deltas per thread.

Cloud – CPU Sampler

 

On-Prem – CPU Sampler

 

Profiler

The profiler view for running transactions shows the profile information each time the refresh button is pressed. Both On-Prem and Cloud show the same accuracy of data when the transaction is running.

Cloud – Profile Details
On-Prem – Transaction Details Profile Tab

 

Log Viewer

The Log Viewer in the Cloud shows the actual realtime logs from the FusionReactor instance and matches the On-Prem Logs page.

Cloud – Log Viewer
On-Prem – Log Viewer

 

Day: August 5, 2020

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