Viraj Jasani created HDFS-16925:
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Summary: Fix regex pattern for namenode audit log tests
Key: HDFS-16925
URL: https://issues.apache.org/jira/browse/HDFS-16925
Project: Hadoop HDFS
Issue Type: Task
Reporter: Viraj Jasani
Assignee: Viraj Jasani
With HADOOP-18628 in place, we perform InetAddress#getHostName in addition to
InetAddress#getHostAddress, to save host name with IPC Connection object. When
we perform InetAddress#getHostName, toString() of InetAddress would
automatically print \{hostName}/\{hostIPAddress} if hostname is already
resolved:
{code:java}
/**
* Converts this IP address to a {@code String}. The
* string returned is of the form: hostname / literal IP
* address.
*
* If the host name is unresolved, no reverse name service lookup
* is performed. The hostname part will be represented by an empty string.
*
* @return a string representation of this IP address.
*/
public String toString() {
String hostName = holder().getHostName();
return ((hostName != null) ? hostName : "")
+ "/" + getHostAddress();
}{code}
For namenode audit logs, this means that when dfs client makes filesystem
updates, the audit logs would also print host name in the audit logs in
addition to ip address. We have some tests that performs regex pattern matching
to identify the log pattern of audit logs, we will have to change them to
reflect the change in host address.
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