The JournalNodeSyncer will include the local instance in syncing when using a bind host (e.g. 0.0.0.0). There is a mechanism that is supposed to exclude the local instance, but it doesn't recognize the meta-address as a local address.
Running with bind addresses set to 0.0.0.0, the JournalNodeSyncer will log attempts to sync with itself as part of the normal syncing rotation. For an HA configuration running 3 JournalNodes, the "other" list used by the JournalNodeSyncer will include 3 proxies.
Exclude bound local addresses, including the use of a wildcard address in the bound host configurations, while still allowing multiple instances on the same host.
Allow sync attempts with unresolved addresses, so that sync attempts can drive resolution as servers become available.
Backport.
Signed-off-by: stack <stack@apache.org>
833fc64558