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Home > Success Center > Netflow Traffic Analyzer (NTA) > NTA 4.0 Release Notes

NTA 4.0 Release Notes

 

Created by Caroline Juszczak, last modified by Anthony.Rinaldi_ret on Sep 13, 2016

Views: 110 Votes: 1 Revisions: 3

Updated 1/17/2014

These release notes provide additional guidance for SolarWinds NetFlow Traffic Analyzer (NTA) v4.0.

NTA 4.0.1 (NTA 4.0 SR1) improving the installation procedure was released on 1/17/2014.

Notice To All Customers Upgrading To NetFlow Traffic Analyzer 4.0

You must read NTA 4.0 Installation: Frequently Asked Questions before attempting to upgrade. SolarWinds NTA 4.0 improves the way we store flow data, but has significantly different system requirements than your current version:

  • NTA 4.0 on 64-bit operating systems (required to get the performance gain) relies on two databases: Orion SQL Database and the new non-SQL NTA Flow Storage Database.
  • The new NTA Flow Storage Database should be installed on a dedicated server. To ensure a fast and smooth installation or upgrade, we recommend you to provide the server before you start the installation/upgrade. For more information about the server requirements, see NTA Flow Storage Requirements.
  • We do NOT recommend installing both databases on the same server; databases on one server compete for critical resources and you can experience a severe decrease in performance.

New Features and Improvements

NTA version 4.0 includes the following new features and improvements:

 

NTA Flow Storage Database

 

For more information, see NTA Flow Storage Database.

Notes:

  • New no-SQL column-oriented database for storing flow data.
  • Improved NTA performance - better load times of NTA resources and reports, ability to process more flows per second.
  • One-minute data granularity during the whole retention period.
  • Flexible deployment options - NTA Flow Storage Database is separate from Orion SQL, allowing for installation on any computer in your network.
    • If you are using NTA primarily for viewing CBQoS data and receive few or no flows, you do not need to set up an extra server for the NTA Flow Storage Database; you can install it locally.
    • For NTA evaluations using MS SQL Express database, installing NTA Flow Storage Database on a remote server is not natively supported. However, it is possible. For more details, see the KB article Installing NTA 4.0 Evaluation with Remote NTA Flow Storage Database.

New Web-Based Reporting

 

For more information, see NetFlow Traffic Analyzer Reports.

  • Create and edit reports from within the Orion Web Console.
  • Include custom tables to apply data and layout you need in your reports.
  • Use 7 CBQoS legacy reports and 14 new web-based reports.

Improved CBQoS Granularity

 

  • CBQoS data can be viewed with one-minute granularity during whole retention period.

Behavior Changes

  • Historically, host and domain names are stored in flows. If endpoint hostnames are updated, the new names are reflected only in new incoming flows, not in the historical data.
  • Endpoint, transmitter and receiver resources group data by the hostname instead of by the IP address. Multiple IP addresses resolved to the same hostname are now grouped into one row in the resource.
  • Updates to the IP Groups, Applications and NetFlow sources (disabling interface) settings do not appear immediately in resources, because stored data have to be updated with the new information. The update operation can take minutes to complete.

Fixed Issues

Issue Case Numbers
Performance Problems  
SQL performance - high CPU 467265
NTA 3.8 upgrade problems 267321
NTA 3.9 upgrade problems 503209
Query in NTA resource running slowly 322310
Unable to modify IP address groups 202141
Performance issues after migration 540447
CBQoS Policies Issues  
CBQoS not working for some policies 484360
CBQoS Issue:Cannot find parent class for policy 482798, 534199
Not all CBQoS classes displayed on a device 505123
CBQoS polling issue 528796
CBQoS policy used in more classes not displaying correct data 329367
CBQoS information not displayed 290241
Class-default missing in CBQoS data 506458
Orion Web Console Improvements  
Better integration with Orion charts due to improved data granularity 266290
Orion subviews support added -

Open Issues

Issue Case Number

Performance Impact

Flow data are saved in more detail in the NTA Flow Storage Database. Displaying reports and graphs in NTA resources on summary views requires handling increased amount of data. In case of viewing data for longer time periods, such as 12 hours or more, rendering and processing the data can be slower.
-
Conversations are grouped by IP addresses (not by hostnames as endpoint resources). Multiple IP addresses resolved to the same hostname are now grouped into one row in the resource. -
Endpoint hostnames must comply with the RFC 952 standard; endpoint names containing other than the following characters A-Z, a-z, 0-9, .- will not display correctly. -

NTA 3.9 End of Life

NTA 3.9 is entering the End-Of-Life (EOL) cycle. Please review the following support schedule:

  • December 10, 2013: End-of-Life (EoL) announcement– Customers on SolarWinds NetFlow Traffic Analyzer version 3.9 or older should begin transitioning to SolarWinds NetFlow Traffic Analyzer version 4.0.
  • March 10, 2014: End-of-Engineering (EoE) – Service releases, bug fixes, workaround, and service packs for SolarWinds NetFlow Traffic Analyzer version 3.9 or older will no longer actively be supported by SolarWinds.
  • March 10, 2015: End-of-Life– SolarWinds will no longer provide technical support for SolarWinds NetFlow Traffic Analyzer version 3.9 or older.

See the SolarWinds EOL Policy online for more information.

End of Support for 32-Bit Operating Systems

SolarWinds is considering to end supporting NTA on 32-bit operating systems soon. Starting from one of the future versions, NTA will run only on 64-bit operating systems.

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