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Posted to common-issues@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2013/06/14 15:47:25 UTC
[jira] [Created] (HADOOP-9645) KerberosAuthenticator NPEs on
connect error
Daryn Sharp created HADOOP-9645:
-----------------------------------
Summary: KerberosAuthenticator NPEs on connect error
Key: HADOOP-9645
URL: https://issues.apache.org/jira/browse/HADOOP-9645
Project: Hadoop Common
Issue Type: Bug
Components: fs
Affects Versions: 2.0.5-alpha
Reporter: Daryn Sharp
Priority: Critical
A NPE occurs if there's a kerberos error during initial connect. In this case, the NN was using a HTTP service principal with a stale kvno. It causes webhdfs to fail in a non-user friendly manner by masking the real error from the user.
{noformat}
java.lang.RuntimeException: java.lang.NullPointerException
at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1241)
at
sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:2713)
at
java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:477)
at
org.apache.hadoop.security.authentication.client.KerberosAuthenticator.isNegotiate(KerberosAuthenticator.java:164)
at
org.apache.hadoop.security.authentication.client.KerberosAuthenticator.authenticate(KerberosAuthenticator.java:140)
at
org.apache.hadoop.security.authentication.client.AuthenticatedURL.openConnection(AuthenticatedURL.java:217)
at
org.apache.hadoop.hdfs.web.WebHdfsFileSystem.openHttpUrlConnection(WebHdfsFileSystem.java:364)
{noformat}
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