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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2022/04/27 11:12:58 UTC
[GitHub] [pulsar] lhotari opened a new issue, #15349: DnsResolverUtil "Cannot get DNS TTL settings from sun.net.InetAddressCachePolicy class" in Java 17
lhotari opened a new issue, #15349:
URL: https://github.com/apache/pulsar/issues/15349
**Describe the bug**
DnsResolverUtil fails to get existing DNS TTL settings. This happens in Java 17. Error message:
```
WARN org.apache.pulsar.common.util.netty.DnsResolverUtil - Cannot get DNS TTL settings from sun.net.InetAddressCachePolicy class
java.lang.IllegalAccessException: class org.apache.pulsar.common.util.netty.DnsResolverUtil cannot access class sun.net.InetAddressCachePolicy (in module java.base) because module java.base does not export sun.net to unnamed module @3932c79a
at jdk.internal.reflect.Reflection.newIllegalAccessException(Reflection.java:392) ~[?:?]
at java.lang.reflect.AccessibleObject.checkAccess(AccessibleObject.java:674) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:560) ~[?:?]
at org.apache.pulsar.common.util.netty.DnsResolverUtil.<clinit>(DnsResolverUtil.java:46) ~[org.apache.pulsar-pulsar-common-2.11.0-SNAPSHOT.jar:2.11.0-SNAPSHOT]
at org.apache.pulsar.client.impl.ConnectionPool.createDnsNameResolver(ConnectionPool.java:116) ~[org.apache.pulsar-pulsar-client-original-2.11.0-SNAPSHOT.jar:2.11.0-SNAPSHOT]
```
**To Reproduce**
Use Pulsar Java Client in Java 17
**Expected behavior**
Pulsar Java Client should be able to detect DNS TTL settings used in Java and apply them to Netty's DnsNameResolverBuilder.
**Additional context**
#15219
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[GitHub] [pulsar] lgxbslgx commented on issue #15349: DnsResolverUtil "Cannot get DNS TTL settings from sun.net.InetAddressCachePolicy class" in Java 17
Posted by GitBox <gi...@apache.org>.
lgxbslgx commented on issue #15349:
URL: https://github.com/apache/pulsar/issues/15349#issuecomment-1139684809
@lhotari @Technoboy- Have you started the work locally? If not, I would like to take it over.
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[GitHub] [pulsar] michaeljmarshall closed issue #15349: DnsResolverUtil "Cannot get DNS TTL settings from sun.net.InetAddressCachePolicy class" in Java 17
Posted by GitBox <gi...@apache.org>.
michaeljmarshall closed issue #15349: DnsResolverUtil "Cannot get DNS TTL settings from sun.net.InetAddressCachePolicy class" in Java 17
URL: https://github.com/apache/pulsar/issues/15349
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[GitHub] [pulsar] Technoboy- commented on issue #15349: DnsResolverUtil "Cannot get DNS TTL settings from sun.net.InetAddressCachePolicy class" in Java 17
Posted by GitBox <gi...@apache.org>.
Technoboy- commented on issue #15349:
URL: https://github.com/apache/pulsar/issues/15349#issuecomment-1123171979
I only know to add vm options `--add-opens=java.management/sun.management=ALL-UNNAMED` ` --add-opens=java.base/sun.net=ALL-UNNAMED` could solve the issue
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