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Fix case where a master isn't available

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This commit is contained in:
Simon Marsh 2019-07-11 09:09:12 +01:00
parent 028a9ab276
commit ff83171909
Signed by: burble
GPG Key ID: 7B9FE8780CFB6593
1 changed files with 7 additions and 4 deletions
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11
dns.go
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@ -243,10 +243,13 @@ func (m *DNSMetrics) Collect() {
for ix, server := range dns_servers {
if server.role == "master" {
soa := results[ix].serial
masters = append(masters, soa)
if soa > latest_soa {
latest_soa = soa
// check that a result was actually received by the master
if results[ix] != nil {
soa := results[ix].serial
masters = append(masters, soa)
if soa > latest_soa {
latest_soa = soa
}
}
}
}