Will Vertica Data Repository servers allow ntpd instead of chrony?

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Article ID: 16737

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Updated On:

Products

CA Infrastructure Management CA Infrastructure Management CA Performance Management - Usage and Administration CA Performance Management - Data Polling

Issue/Introduction

Default build in the environment continues to utilize ntpd instead of the newer replacement chrony. 



Will Vertica Data Repository servers allow ntpd instead of chrony?

Environment

r3.2 and newer releases onlyDoes not apply to r3.1 and older releases

Resolution

  • Using xntpd should be just fine, as long as it can keep the time correct on the server. CA documented chrony as a requirement due to it being the new default on RHE7 installs, replacing xntpd. 
  • A FAIL message will be observed in the dr_validate script run if the chrony package is not installed. 
  • If the dr_validate script finds chrony installed it will enable and start it as needed. 
  • If you have installed chrony but wish to keep it disabled in favor of ntpd you may need to stop/disable it after running the dr_validate script. 
  • The Vertica installer checks for ntpd, ntp and chronyd. As long as one is present and running, or able to be started and run, it should install.