Stephen Chu created HDFS-4295:
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Summary: Using port 1023 should be valid when starting Secure
DataNode
Key: HDFS-4295
URL: https://issues.apache.org/jira/browse/HDFS-4295
Project: Hadoop HDFS
Issue Type: Bug
Components: security
Affects Versions: 2.0.0-alpha
Reporter: Stephen Chu
In SecureDataNodeStarter:
{code}
if ((ss.getLocalPort() >= 1023 || listener.getPort() >= 1023) &&
UserGroupInformation.isSecurityEnabled()) {
throw new RuntimeException("Cannot start secure datanode with
unprivileged ports");
}
{code}
This prohibits using port 1023, but this should be okay because only root can
listen to ports below 1024.
We can change the >= to >.
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