In this series of posts I am covering some of the many ways you can benefit from XpoLog and especially on how to get the most valuable information about your log4j event logs.
By running Analytic Search on your log4j data, you can among other things measure your application performance and thread activity, measure code activity with class and method analytics on log4j, build various reports and analysis, and make use of various visualization gadgets for maximum analysis.
In this last post I will show you XpoLog’s unique Apps, where you can create your own dashboards and visualization gadgets, to better understand what is happening inside your logs and applications. So… get ready to App it all up…

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What is an App?

An XpoLog App is like a container. It can contain any number of dashboards, and each dashboard can contain any number of gadgets. The gadgets can be a visual display, such as a graph or a chart, but it can also be textual information such as a table. From the moment a gadget is saved, the results are automatically updated at regular intervals.
XpoLog has also created unique out-of-the-box apps, some of them tailored specifically for log4j. These apps are ready for you to use, to quickly receive insights on your data, such as performance, quality and compliance.

From Search to App (and Back)

Starting from where we left off in my last post, “One Small Error in Java Code, One Giant Leap for Code Quality“, let us have a look at what our last two searches would look like in an App. The way to do that is to create a new gadget and place it in the relevant dashboard and App by saving the search as a gadget. I will show you have to save and view the gadgets for the logs error and system audit.
From the actual search result in the Search interface, click Save Gadget from the top right of the screen. The Save Gadget window opens. (We are currently looking at the log error.)

save gadget for error in error count group by class order by count desc fixed

In the Save Gadget window, give your gadget a meaningful name, select a time range, select Chart, select one of the existing apps or create a new one, and select one of the existing dashboards or create a new one. Click Save and View Dashboard.
The Apps interface opens and you can view your result:

gadget result for error in error count group by class order by count desc 18 05 in apps

Notice the View in Search link in the bottom right corner. Clicking this link brings you (back) to the Search interface.
Now let’s look at the gadget for the other example, system audit. First, save the search result as a gadget:

Save gadget for system audit transaction where job completed null

In the Save Gadget window, in the Gadget Title field, give your gadget the name transaction where job completed = null, and in the Apps field call the App System Audit and the Dashboard Transactions. If you save several gadgets for several time frames, and place them all in the Transactions dashboard, you can see several results in the Apps interface:

Save gadget result in Apps for system audit transaction where job completed null

Here the View in Search link is in the bottom each individual right corner of each gadget. Clicking this link brings you (back) to the Search interface. (Note that if you created the App from the Apps interface, you can also see it in the Search interface by clicking the View in Search link.)
You can also create your own Apps, Dashboards and Gadgets directly from the XpoLog Apps interface. You can check out my instructions here.

Viewing your Apps

When viewing your apps, dashboards, and gadgets, you can change the view in a number of ways, such as:
Changing the time span:

App features change time range

If we started by searching for errors in the last 7 days of a search but want to narrow it down to the last 24 hours, and perhaps the last hour, simply click the time frame icon icon to select a different time frame. Here is an example of 4 Spline charts of the same search query but the time frame is narrowed down from the last 7 days to the last hour:

many gadget view different time frame

Speaking of seeing several graphs (gadgets) simultaneously, you can drag and drop and move them around as you please using the drag and drop icon drag and drop icon in the top left corner of each graph.

drag and drop screen

Some other ways to view your apps are:
Changing the layout of the screen to show many gadgets simultaneously. Here is an example of 3 columns of graphs/charts:

layout 3 columns

Inverting the color theme:

layout 3 columns inverted colors

Creating a slide-show:

App features play slideshow of all dashboards in app

Here is the slide-show in movement:


…and there are many more ways to view as well.

Other Cool App Functions

One of the useful functions of the self-created custom Apps is the Scheduled Export. Once you have created an App you like you can schedule it to send you reports as often as you wish. For example, every morning at 9 AM you want to receive a report for a specific search for the last 24 hours. The App can create reports and export them to PDF, CSV, and directly to your email.
To schedule these reports to be sent, all you need to do is click Edit App (either from the top menu bar or the side bar, depending where you are), and then, in the Export Settings section, select the Exporting Frequency. From there, you can fill in all the other details needed to create the reports.

export settings

Another great App function is how you can custom filter a dashboard result to suit your needs. Let’s say you have a dashboard showing the results of a search you did, but you want to slightly alter the search without going back to the Search interface.

filter dashboard 1 with search marked

Click the Search icon search icon and enter the change you want to make. The gadget will show the new result accordingly:

filter dashboard 2 with search marked

There are a number of other functions I could get into, but I suggest you check out our App guide here for more awesome features.

Final words

Looking back on this series of posts, I have shown you how to send your data to XpoLog, how to add logs and edit logs, how to parse them and to add AppTags to them. Then we did some Simple and Complex Searches, I introduced you briefly to Analytic Search and XpoLog Analytics. We saw how XpoLog’s Analytical Insights can find numerous anomalies you never even thought of looking for, and can give you valuable information regarding you application performance and quality of code. Last, but not least, we took a quick peek at viewing all this information in Apps.
I now suggest you have a look at and experiment with XpoLog on your own. You can download our software in just a few minutes and it’s absolutely free . If you need any help at all, configuring, navigating, or anything else, we are here to help you.

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