Database Health


Selecting Menu Bar → → Database Health displays the Database Health dashboard. The Database Health tab highlights.


There are features and functions used in Arista NetVisor UNUM and Insight Analytics that are common throughout the user interface (UI). Please refer to the Common Functions section for more information on the use of these functions and features.


The NetVisor UNUM Configuration Database Health module provides functionality to monitor health and performance of the overall system.


Select the Database Health to launch the monitoring window. 


The dashboard shows an Overview of the health of the system as well as drill-down tabs for Indices and Nodes (clusters).


Pertinent information about each node includes:


Number of Nodes

Indices

Memory Consumption

Total number of Shards

Unassigned Shards

Documents

Data Store

Uptime

Software Version

Health Indicator (will always default to display yellow caution if only a single node is active)


As illustrated below system health status warnings are highlighted. 


Search Rate, Search Latency, Indexing Rate, Index Latency, Shard Activity and other relevant data points are monitored by default and the associated graphs and charts provide visual feedback about the overall performance of the NetVisor UNUM.


Dashboard


NetVisor UNUM Configuration System Health Overview Dashboard


Data collection is stopped using the (Pause) icon and restarted using the (Play) icon.

 

To install the extended features X-Pack License follow the step described below  and follow the on-screen instructions to register for a license and Upload the license to activate the X-Pack.


Installation Steps


1)Click  the  link: https://register.elastic.co/marvel_register

2)Provide your details and email address and you will receive an acknowledgment email: “Thank you for using the Elastic Stack and registering for your free Basic license! This license expires on… To download your license, please go to: http://license.elastic.co/registration/download/(data string) Best, The Elastic Team”

3)Click on the link provided in the email message.

4)Click Ok  to accept the agreement.

5)Download  the  ElasticSearch 5.x license and save it as: lic.json

6)Go  to  https://NetVisor UNUM_IP_Address/#/settings/health and click on Install XPack License. 

7)Upload  lic.json from the location where you saved the file.


NetVisor UNUM Configuration System Health Install X-Pack Register for License


NetVisor UNUM Configuration System Health X-Pack License Code


Refresh Interval


The information displayed is updated based on the selected sampling time by clicking on the Time link from 5 seconds to 24 hours (1 day). 


NetVisor UNUM Configuration System Health Refresh Interval


Time Range


Alternately, turn off updates as applicable. 


Historical information is displayed by clicking on the Time (Last) icon and can display information from current day up to the last 5 years. 


The updated time sampling and historical selection is displayed in the tool bar. 


NetVisor UNUM Configuration System Health Time Range


System Health Indices


More granular information is available by clicking on the Indices Tab. Select the checkbox Show System Indices to view all NetVisor UNUM indices.


Associated graphs and charts provide visual feedback about the overall performance of the NetVisor UNUM system. 


The information displayed is updated based on the selected sampling time by clicking on the Time link from 5 seconds to 24 hours. 


Alternately, turn off updates as applicable. 


Historical information is displayed by clicking on the Last (time) icon. Display information from current day up to the last 5 years. 


The updated time sampling and historical selection is displayed in the tool bar.


Data collection is stopped using the (Pause) icon and restarted using the (Play) icon. 


NetVisor UNUM Configuration System Health Time Range Indices


You drill-down further into the Indices by selecting any one of the links displayed on the dashboard. 


The dashboard then updates with more granular information.


NetVisor UNUM Configuration System Health Indices Drill-down Overview


Additional Indices information is available selecting the Advanced feature.


NetVisor UNUM Configuration System Health Drill-down Advanced Tab


System Health Indices over Time


NetVisor UNUM Configuration System Health Indices


Data Node Indices Historical Information


NetVisor UNUM Configuration System Health Historical Information


Data Node Indices Drill-down


Quick, Relative and Absolute time drill-down monitoring is achieved by selecting the appropriate icon. 


The Quick method displays data from current day up to the last 5 years. 


NetVisor UNUM Configuration System Health Quick Date Drill-down


The Relative and Absolute methods provide a finer level of granularity for selecting data from specific date ranges as illustrated below.


NetVisor UNUM Configuration System Health Relative Date Range Drill-down


NetVisor UNUM Configuration System Health Absolute Date Range Drill-down


System Health Nodes


More granular information listing individual Nodes is available by clicking on the Nodes Tab. 


Associated graphs and charts provide visual feedback about the overall performance of the NetVisor UNUM system. 


The information displayed is updated based on the selected sampling time by clicking on the Time link from 5 seconds to 24 hours. 


Alternately, turn off updates as applicable. 


Historical information is displayed by clicking on the Last (time) icon. Display information from current day up to the last 5 years. 


The updated time sampling and historical selection is displayed in the tool bar.


NetVisor UNUM Configuration System Health Data Node Dashboard


Similar to the workings of  Indices Tab (see Data Nodes Indices Drill-down above) clicking on the Time link from 5 seconds to 24 hours or the Last (time) icon brings up the same data drill-down interface along with the Quick, Relative and Absolute time drill-downs (see Data Nodes Indices Drill-down above). 


The Quick method displays data from current day up to the last 5 years. While the Relative and Absolute methods provide a finer level of granularity for selecting data from specific date ranges (see Data Nodes Indices Drill-down above).


Data collection is stopped using the (Pause) icon and restarted using the (Play) icon.


You click on an entry in the dashboard to drill-down further to see more granular information about the Node.


NetVisor UNUM Configuration System Health Data Node Drill-down


Click on the Advanced tab to obtain more granular information about the Node.


NetVisor UNUM Configuration System Health Data Node Advanced Drill-down



Note: Additional information on using and configuring NetVisor UNUM Database Health is available at Elastic.

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