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HADOOP-13526. Add detailed logging in KMS for the authentication failure of proxy user. Contributed by Suraj Acharya. 

(cherry picked from commit 98e7be769a7e69bdaec4f67143949f282f6761cf)
This commit is contained in:
Xiao Chen 2016-08-22 18:06:53 -07:00
parent c76e0b93f0
commit a4b296734b
1 changed files with 10 additions and 0 deletions
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10
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticationFilter.java
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@ -39,6 +39,8 @@
import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URLEncodedUtils;
import org.codehaus.jackson.map.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
@ -81,6 +83,9 @@ public class DelegationTokenAuthenticationFilter
private static final String ERROR_EXCEPTION_JSON = "exception";
private static final String ERROR_MESSAGE_JSON = "message";
private static final Logger LOG = LoggerFactory.getLogger(
DelegationTokenAuthenticationFilter.class);
/**
* Sets an external <code>DelegationTokenSecretManager</code> instance to
* manage creation and verification of Delegation Tokens.
@ -261,6 +266,11 @@ protected void doFilter(FilterChain filterChain, HttpServletRequest request,
HttpExceptionUtils.createServletExceptionResponse(response,
HttpServletResponse.SC_FORBIDDEN, ex);
requestCompleted = true;
if (LOG.isDebugEnabled()) {
LOG.debug("Authentication exception: " + ex.getMessage(), ex);
} else {
LOG.warn("Authentication exception: " + ex.getMessage());
}
}
}
}