Time Sync causing Cluster Issues

Time Sync causing Cluster Issues

Issue:

The customer is having issues with the cluster going out of sync causing various issues.

Examples:
webRDP giving and Unknown Error
Users unable to authenticate
UW just running slowly in general

Customer will rebuild the cluster, only to have it go out of sync again.


Solution:

One of the second leading cause of the cluster going out of sync, behind communication issues between the loaders, is not having the UW servers in time sync.  The cluster relies each loader being within 30 seconds or each other, to properly pass the clustering information back and forth.

The best way to do so, is to set all the servers to use the same reliable NTP source.

The NTP Pool Project is a very reliable NTP source:
http://www.pool.ntp.org/

    Can't find the KB

    Unable to find the KB to address your issue ?  

      • Recent Articles

      • Lenovo Unified Workspace End-of-Life Questions and Answers

        Will the shutdown of LUW servers and access to downloads affect my server licensing? No, the shutdown of the customer servers and access to the product and licensing downloads will not affect your server licensing. This license is downloaded and ...

      • How do I determine my Unified Workspace license expiration date?

        The best method for determining the licensing information including the expiration date of your Unified Workspace license: Login to your 8090 management console on each server This may take remoting into each LUW server and relay, opening a browser, ...

      • Lenovo Unified Workspace 7.0.2.13 Released

        Highlights of Unified Workspace 7.0.2.13 Before you install: Please view the installation notes here. 7.0.2.13 requires a 7.0 license file. Below is a list of enhancements and fixes released in Unified Workspace 7.0.2.13 Fixed external storage ...

      • LanSchool Documentation Guides

        LanSchool Classic Teacher Console The LanSchool Teacher Console is the interface teachers will use to manage their classroom and students. It contains all the tools necessary for a teacher to effectively interact with students and create a ...

      • Lenovo Unified Workspace 7.0.1.41 Released

        Highlights of Unified Workspace 7.0.1.41 Before you install: Please view the installation notes here. 7.0.1.41 requires a 7.0 license file. Below is a list of enhancements and fixes for Unified Workspace 7.0.1.41 Updated Log4j Updated Java Updated ...

      • Related Articles

      • Time Sync Causing OTP Failure

        Issue: The customer is having issues with OTP not working from stand-alone relay servers, such as in the DMZ. Solution: Check the server time on stand-alone relay.  It's possible the time is out of sync from the internal server.  OTP relies on the ...

      • Unable to create cluster

        The customer is doing a new install and can not get the cluster working. Customer gets the error: Unable to invoke insertIntoCluster How can we delete the cluster by hand and start over? Helped customer remove cluster by hand by: 1) Shut down the ...

      • Cluster Traffic

        Clustering is used to maintain the state of the user’s session information so that multiple relays can share the same session information. When a user logs in, their session id is sent to each node of the cluster. A session id is 36 characters. There ...

      • SSL Root Certificate causing issues with Slingshot

        Issue: When trying to run a Slingshot webApp on a workstation, the Slingshot utility gives the following error: Error: "Problem found with the Secure Sockets Layer(SSL) certificate sent by the server.  Please note that self-signed certificates cannot ...

      • Desktop Authentication known issues and recommendations

        Problem:  What are the known issues of using Desktop Authentication feature to automatically log users into the portal? Cause:  Desktop Authentication feature uses Windows Integrated Authentication (NTLMv1).  Most browsers do not support auto-login ...