Julian Hyde created CALCITE-1693:
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Summary: Pig adapter test runs slowly
Key: CALCITE-1693
URL: https://issues.apache.org/jira/browse/CALCITE-1693
Project: Calcite
Issue Type: Bug
Reporter: Julian Hyde
Assignee: Julian Hyde
The Pig tests seem to be running very slowly (several minutes), and CPU is idle.
A thread dump reveals a wait in
{{java.net.Inet6AddressImpl#lookupAllHostAddr}}. If so, maybe we’re hitting a
[known problem when IPv6 is not available|
https://developer.ibm.com/answers/questions/284205/how-can-we-improve-performance-in-javanetinet6addr.html].
The fix would be to add {{-Djava.net.preferIPv4Stack=true}}.
[~maryannxue], Can you please see whether that fix helps in your environment?
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