ITQC/containernetworking-plugins
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dhcp: decrease read timeout and clamp backoff

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This commit is contained in:
Eugene Yakubovich 2015-06-15 12:40:34 -07:00
parent d4d3f914e7
commit 295e02e4e9
1 changed files with 5 additions and 2 deletions
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5
plugins/ipam/dhcp/lease.go
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@ -34,6 +34,7 @@ import (
// RFC 2131 suggests using exponential backoff, starting with 4sec // RFC 2131 suggests using exponential backoff, starting with 4sec
// and randomized to +/- 1sec // and randomized to +/- 1sec
const resendDelay0 = 4 * time.Second const resendDelay0 = 4 * time.Second
const resendDelayMax = 32 * time.Second
const ( const (
leaseStateBound = iota leaseStateBound = iota
@ -308,8 +309,10 @@ func backoffRetry(f func() (*dhcp4.Packet, error)) (*dhcp4.Packet, error) {
time.Sleep(baseDelay + jitter(time.Second)) time.Sleep(baseDelay + jitter(time.Second))
if baseDelay < resendDelayMax {
baseDelay *= 2 baseDelay *= 2
} }
}
return nil, errNoMoreTries return nil, errNoMoreTries
} }
@ -322,7 +325,7 @@ func newDHCPClient(link netlink.Link) (*dhcp4client.Client, error) {
return dhcp4client.New( return dhcp4client.New(
dhcp4client.HardwareAddr(link.Attrs().HardwareAddr), dhcp4client.HardwareAddr(link.Attrs().HardwareAddr),
dhcp4client.Timeout(10*time.Second), dhcp4client.Timeout(5*time.Second),
dhcp4client.Broadcast(false), dhcp4client.Broadcast(false),
dhcp4client.Connection(pktsock), dhcp4client.Connection(pktsock),
) )