sar command fails with error "Requested activities not available in file /var/log/sa/saXX"

Solution In Progress - Updated -

Issue

  • Why does sar fail with "Requested activities not available" error?
[root@example ~]# sar -n TCP
Requested activities not available in file /var/log/sa/saXX

[root@example ~]# sar -n UDP
Requested activities not available in file /var/log/sa/saXX

Environment

  • Red Hat Enterprise Linux 7

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