Linux Server: SL1 Dashboards PowerPack Release Notes, version 100

Version 100 of the Linux Server SL1 Dashboards PowerPack is the initial version of the PowerPack. The PowerPack includes Dashboards that present graphical representations of the configuration data and performance metrics that are collected for Linux servers and file systems by the Linux Base Pack PowerPack.

NOTE: These dashboards are intended for use only in the new SL1 user interface and will not load in the classic ScienceLogic platform user interface.

Minimum Required SL1 Version: 8.8.0
Minimum Required AP2 Version: 5.114.6
Minimum Required Widget Components Version: 2.168.10
Minimum Required Linux Base Pack PowerPack Version: 101

Before You Install

Before installing Linux Server SL1 Dashboards PowerPack version 100, you must first ensure that you are running version 8.8.0 or later of SL1.

NOTE: For details on upgrading SL1, see the appropriate Release Notes.

You must also import and install theLinux Base Pack PowerPack version 101 or later before installing the PowerPack.

Installation Process

To install this PowerPack:

Familiarize yourself with the Known Issues for this release.
See the Before You Install or Upgrade section. If you have not done so already, upgrade your system to the 8.8.0 or later release.
Download the "Linux Server SL1 Dashboards" version 100PowerPack from the Support Site to a local computer.
Go to the PowerPack Manager page (System > Manage > PowerPacks). Click the Actions menu and choose Import PowerPack. When prompted, import "Linux Server SL1 Dashboards" version 100.
Click the Install button. For details on installing PowerPacks, see the chapter on Installing a PowerPack in the PowerPacks manual.

Features

The following dashboards are included in version 100 of the Linux Server SL1 Dashboards PowerPack:

A "Linux: File System" dashboard, which includes the following widgets that display overview data about your Linux file systems:

Linux System List
Vitals
Latency
Top 10 - Load Average
Selected Load Average
Top 10 - CPU
Selected CPU
Top 10 - Memory
Selected Memory Stats
Top 10 - Disk Input/Output per Second
Selected Disk Input/Output per Second Stats
Top 10 - File System Utilization
Selected File System Utilization
Top 10 - Interface Usage
Selected Interface Usage
Top 10 - Interface Errors
Selected Interface Errors
Top 10 - TCP/UDP Stats
Selected TCP/UDP Stats
Top 10 - Zombie Processes
Selected Zombie Processes

A "Linux: Server" dashboard, which includes the following widgets that display data about your Linux servers:

Linux Server List
Vitals
Latency
Top 10 - Interface Utilization
Selected Interface Utilization
Selected Interface Errors and Drops

Known Issues and Workarounds

Dashboard widgets might be slow to load or display red bells. If this occurs, you can do the following to address the issue:

Start an SSH session into your SL1 appliance.
At the shell prompt, enter the following to open the em7_limits.conf file for editing:

cd /etc/nginx/conf.d

sudo cp em7_limits.conf em7_limits.conf.backup

sudo vi em7_limits.conf
Locate the line that begins with "limit_req zone=addr_req" and update it to the following:

limit_req zone=addr_req burst=5000 nodelay;
Locate the lines that begin with "limit_conn" and update them to the following:

limit_conn perip 10000;

limit_conn perserver 10000;
Restart nginx. To do this, enter the following at the shell prompt:

sudo systemctl restart nginx

Dashboards might not appear immediately in the SL1 user interface after you import the PowerPack using the PowerPack Importer. If this occurs, you can do the following to address the issue:

Type the following URL into your web browser:

https://<hostname or ip>/gql?query=mutation%20%7B%20importContentObjectsFromPowerPackQueue%20%7D%0A
When prompted, enter your user credentials.
Click the GraphQL "play" button. If successful, a "true" message appears in the right-hand panel.
Verify that the dashboards now appear by returning to the Dashboards page and refreshing your web browser.