In this particular case we have a DNS server running Bind which is logging all DNS queries. 7124 messages were suppressed and dropped (not logged) because they were coming in too fast in this example.
By default systemd allows 1,000 messages within a 30 second period.
The limits are controlled in the /etc/systemd/journald.conf file.
RateLimitInterval=30s
RateLimitBurst=1000
这里有限制，30s只能发送1000条日志
#vim /etc/systemd/journald.confRateLimitInterval=30sRateLimitBurst=1000改成RateLimitInterval=30sRateLimitBurst=10000
