Technoboy- commented on code in PR #18565:
URL: https://github.com/apache/pulsar/pull/18565#discussion_r1028968991
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pulsar-common/src/main/java/org/apache/pulsar/common/util/netty/DnsResolverUtil.java:
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@@ -44,13 +44,16 @@ public class DnsResolverUtil {
Class<?> inetAddressCachePolicyClass =
Class.forName("sun.net.InetAddressCachePolicy");
Method getTTLMethod = inetAddressCachePolicyClass.getMethod("get");
ttl = (Integer) getTTLMethod.invoke(null);
+ if (ttl <= 0) {
+ ttl = DEFAULT_TTL;
+ }
Method getNegativeTTLMethod =
inetAddressCachePolicyClass.getMethod("getNegative");
negativeTtl = (Integer) getNegativeTTLMethod.invoke(null);
} catch (NoSuchMethodException | ClassNotFoundException |
InvocationTargetException
| IllegalAccessException e) {
log.warn("Cannot get DNS TTL settings from
sun.net.InetAddressCachePolicy class", e);
}
- TTL = useDefaultTTLWhenSetToForever(ttl, DEFAULT_TTL);
+ TTL = ttl;
NEGATIVE_TTL = useDefaultTTLWhenSetToForever(negativeTtl,
DEFAULT_NEGATIVE_TTL);
Review Comment:
fixed.
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