merlimat commented on issue #1762: Don't cache Bookie hostname DNS resolution 
forever
URL: https://github.com/apache/bookkeeper/pull/1762#issuecomment-433555589
 
 
   @dlg99 `-Dnetworkaddress.cache.ttl` cannot be passed as system property from 
CLI but rather included in `java.security` property file. 
   
   In any case, the current behavior is caching the DNS resolution forever in 
the BK client process. That comes before reaching the JVM DNS cache or the OS 
DNS cache. By creating new instances of `InetSocketAddress` we will rely on the 
JVM cache, that depends on the `networkaddress.cache.ttl` setting. 
   
   (BTW: I think the JVM cache is a *bad* thing on its own, but that's a 
different story... :) )

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