Index flush job does not always run due to time synchronization
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Symptoms
Confluence incremental index does not run every 60 seconds (which it should do)
The daily index optimizer task, which should run at 2 AM, runs every day at a different time.
Solution
Confluence relies on the Virtual Machine's time from which it is running, and the VM clock is not in sync with an NTP server.
From NTP Server known issues:
NTP was not designed to run inside of a virtual machine. It requires a high resolution system clock, with response times to clock interrupts that are serviced with a high level of accuracy. No known virtual machine is capable of meeting these requirements.
Resolution
Check your NTP Server and system clock synchronization parameters/configuration, to ensure they are in sync.
See:
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