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https://issues.apache.org/jira/browse/HDFS-3676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13753941#comment-13753941
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Yu Gao commented on HDFS-3676:
------------------------------
Do we have any update on this issue? The TGT auto-renewal doesn't work for
libhdfs, which is a big limitation for applications using this c interface.
> handleSaslConnection failure doesn't try to renew the correct UGI
> -----------------------------------------------------------------
>
> Key: HDFS-3676
> URL: https://issues.apache.org/jira/browse/HDFS-3676
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
>
> Client.java has this code:
> {code}
> private synchronized void handleSaslConnectionFailure(
> final int currRetries, final int maxRetries, final Exception ex,
> final Random rand, final UserGroupInformation ugi) throws IOException,
> InterruptedException {
> ugi.doAs(new PrivilegedExceptionAction<Object>() {
> public Object run() throws IOException, InterruptedException {
> final short MAX_BACKOFF = 5000;
> closeConnection();
> disposeSasl();
> if (shouldAuthenticateOverKrb()) {
> if (currRetries < maxRetries) {
> if(LOG.isDebugEnabled()) {
> LOG.debug("Exception encountered while connecting to "
> + "the server : " + ex);
> }
> // try re-login
> if (UserGroupInformation.isLoginKeytabBased()) {
> UserGroupInformation.getLoginUser().reloginFromKeytab();
> } else {
> UserGroupInformation.getLoginUser().reloginFromTicketCache();
> }
> {code}
> It's not renewing the UGI that had the problem, it's renewing the loginUser.
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