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bring back minor DNS cache for k8s setups (#19341)

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k8s as it stands is flaky in DNS lookups,
bring this change back such that we can
cache DNS atleast for 30secs TTL.
This commit is contained in:
Harshavardhana
2024-03-26 08:00:38 -07:00
committed by GitHub
parent 4b9192034c
commit dc45a5010d
6 changed files with 28 additions and 76 deletions
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6
cmd/grid.go
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@@ -35,13 +35,9 @@ var globalGrid atomic.Pointer[grid.Manager]
var globalGridStart = make(chan struct{})
func initGlobalGrid(ctx context.Context, eps EndpointServerPools) error {
lookupHost := globalDNSCache.LookupHost
if IsKubernetes() || IsDocker() {
lookupHost = nil
}
hosts, local := eps.GridHosts()
g, err := grid.NewManager(ctx, grid.ManagerOptions{
Dialer: grid.ContextDialer(xhttp.DialContextWithLookupHost(lookupHost, xhttp.NewInternodeDialContext(rest.DefaultTimeout, globalTCPOptions))),
Dialer: grid.ContextDialer(xhttp.DialContextWithLookupHost(globalDNSCache.LookupHost, xhttp.NewInternodeDialContext(rest.DefaultTimeout, globalTCPOptions))),
Local: local,
Hosts: hosts,
AddAuth: newCachedAuthToken(),