Github user anmolnar commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/534#discussion_r192694788
--- Diff: src/java/main/org/apache/zookeeper/client/StaticHostProvider.java
---
@@ -314,7 +340,7 @@ public InetSocketAddress next(long spinDelay) {
addr = nextHostInReconfigMode();
if (addr != null) {
currentIndex = serverAddresses.indexOf(addr);
- return addr;
+ return resolve(addr);
--- End diff --
I disagree. We should not do any caching in our codebase, because there're
multiple levels of caching already present in DNS infrastructure, like JVM
caching, os-level caching, DNS servers caching, etc. `resolve()` will
eventually become a no-op if any of these caches find a hit.
---