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A comment on AWS S3 Outage. Parent comment

Re:AWS S3 Outage by bbrazil on Monday August 10, 2015 @04:59AM (#10033428)
Java by default can cache DNS forever, which may be why many people are seeing problems. Set networkaddress.cache.ttl to adjust this.

http://javaeesupportpatterns.blogspot.ie/2011/03/java-dns-ca... has more detail.

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Re:AWS S3 Outage by ork on Monday August 10, 2015 @05:58AM (#10033608)
Reading this article, it seems that starting at 1.6 the default TTL became 30s.
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Re:AWS S3 Outage by Xorlev on Monday August 10, 2015 @06:58AM (#10033773)
It's not true as far as I can tell. You need this flag set or it keeps DNS entries forever, at least on the JVM we run (Oracle, 1.8u51).
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