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ntp: reset polling interval when replacing sources

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Set the polling interval to minpoll when changing address of a source,
but only if it is reachable to avoid increasing load on server or
network in case that is the reason for the source being unreachable.

This shortens the time needed to replace a falseticker or
unsynchronized source with a selectable source.
This commit is contained in:
Miroslav Lichvar
2023-05-16 15:11:22 +02:00
parent b2dac47c82
commit 5ba42cee45
2 changed files with 25 additions and 0 deletions
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6
ntp_core.c
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@@ -833,6 +833,12 @@ NCR_ChangeRemoteAddress(NCR_Instance inst, NTP_Remote_Address *remote_addr, int
inst->local_addr.sock_fd = NIO_OpenServerSocket(remote_addr);
}
/* Reset the polling interval only if the source wasn't unreachable to
avoid increasing server/network load in case that is what caused
the source to be unreachable */
if (SRC_IsReachable(inst->source))
NCR_ResetPoll(inst);
/* Update the reference ID and reset the source/sourcestats instances */
SRC_SetRefid(inst->source, UTI_IPToRefid(&remote_addr->ip_addr),
&inst->remote_addr.ip_addr);