Submit a ticketCall us

Looking to compare latest NPM features with previous versions of NPM?
The NPM new feature summary offers a comparison of new features and improvements offered with this release.

 

Home > Success Center > Log & Event Manager (LEM) > SolarWinds LEM 6.3 User Guide > Explore view in the LEM console > Using the nDepth histogram

Using the nDepth histogram

Created by Caroline Juszczak, last modified by Caroline Juszczak on Aug 29, 2016

Views: 3 Votes: 0 Revisions: 4

The nDepth histogram displays the number of events or log messages reported within your search time frame. nDepth returns search results chronologically so you can investigate a specific interval. You can minimize the search window to take a closer look or maximize the window to view additional activity.

nDepth's histogram summarizes event activity within a particular period. By default, the histogram displays the last 10 minutes of event activity. The bright zone shows the period that is currently being reported. The gray zones show activity outside of the reported period.

File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Histogram-Summary.png

The bottom time bar is divided into one-minute intervals. The top bar is divided into 30-second intervals. The histogram displays a separate bar for each 30-second interval. Time is displayed in 24-hour (military) time.

Clicking a bar opens a pop-up window that shows a histogram for that bar's interval. Depending on range of the search's time frame, these intervals can be as little as 5-seconds. Pointing to a bar shows the total number of events that occurred in that interval. Clicking a bar opens a pop-up window to show a histogram for the selected interval.

File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Histogram-Detail.png

When you switch to the Result Details view, the histogram displays two dashed vertical lines. These lines are markers, indicating where you are in the histogram for each page of the search results. The lines show the times of the first and last event on the current Result Details page.

By default, the chart shows the time of the first result on the page. If you select an event in the Result Details box, the pointer shows the time of that event.

When you view the search results of events number 1-200, the left line shows the time of event number 1, and the right line shows the time of event number 200. If you click event number 150, the chart shows the time that event occurred.

Search activity associated with a particular histogram bar

Use the histogram to search the event activity associated with a particular vertical bar in the histogram.

To search activity for a bar, double-click a vertical bar. nDepth automatically refines the search and refreshes the data to show only the events from the time frame associated with that bar.

Adjust the search period

You can use the nDepth histogram to move the search period to an earlier or later start time. For example, when you search a 30-minute time frame, you can search the data for the same period, but adjust the search period within the 30-minute time fame.

  1. Move your mouse pointer over the histogram.
  2. Locate the gray slider that appears in the window.
  3. Drag the slider to the left to move the period to an earlier starting point. Drag the slider to the right to move the period to a later starting point.

    As you move the slider, a ToolTip displays the period's midpoint time.

    File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Histogram-CntrSlider.png

  4. Click File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Icon-ZoomIn_13x13.png to run the search for the new time frame.

    nDepth automatically refines the search and refreshes the data to display only the events from the new time frame. Modifying the period automatically changes the search bar time selector to Custom.

  5. Click File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Icon-ZoomOut_14x14.png to restore the previous time frame (if desired).

Change the period start and end time

You can use the nDepth histogram to change the search period by changing its start time and end time. For example, if you run a search for a 30 minute period, you can expand the time frame (for example, 45 minutes) or reduce the time frame (for example, 20 minutes),

  1. Move your mouse pointer over the vertical bar.
  2. Drag the vertical bar to a new destination.

    Drag the left or right slider to change the time frame start or end time, respectively. When you release the slider, a tooltip shows the new start time.

    File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Histogram-LeftSlider2.png

  3. Click File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Icon-ZoomIn_15x15.png to run the search for the new time frame.

    nDepth automatically refines the search and refreshes the data to show only the events from the new time frame. Changing the time frame automatically changes the search bar time selector to Custom.

  4. Click File:Success_Center/Reusable_content_-_InfoDev/LEMUserGuide_MT/060/010/050/Icon-ZoomOut_15x15.png to restore the previous time frame (if desired).
 
Last modified
10:01, 29 Aug 2016

Tags

Classifications

Public