Comment 3 for bug 1668771
Revision history for this message
| James Hebden (ec0) wrote Re: systemd-resolved negative caching for extended period of time | #3 |
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This is especially upsetting in an OpenStack and server environment where external DNS is being used to reach/resolve API endpoints and other systems such as database servers. A small outage to DNS becomes a potentially unbounded outage when the SERVFAIL responses are cached indefinitely, requiring manual intervention on each host in addition to fixing the cause of the SERVFAIL.