“update_fast_counter: was busy” – What it means

This message indicates that the system was temporarily too busy to perform a routine background update at the expected time.

Under normal conditions, the system performs certain internal checks or updates at very regular intervals. When this message appears, it means one or more of those updates were delayed or skipped because the system was handling other work.

What this implies:

• The system experienced a short period of high load or processing delay.

• Some background activity did not run exactly on schedule.

• The system detected the delay and recorded it for monitoring purposes.

Impact:

• In most cases, this is informational and does not indicate a failure. but signify high system load.

• Brief delays usually have no customer-visible impact.

• If such messages occur frequently, it may suggest sustained high load and could warrant further investigation.

In short, “was busy” simply means the system was momentarily overloaded and couldn’t keep perfect timing for a background task.