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https://issues.apache.org/jira/browse/HADOOP-6559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12833098#action_12833098
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Kan Zhang commented on HADOOP-6559:
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bq. saslRpcClient.saslConnect() needs to be in doAs() block, whereas new
SaslRpcClient() may be not.
bq. no need to return SaslRpcClient as it is a member field.
bq. please make sure your change is compatible with HADOOP-6543 (i.e., I'll
eventually make saslRpcClient.saslConnect() return boolean based on whether we
need to fall back to simple auth).
bq. you need to re-throw SaslException when the retry block is not entered.
> The RPC client should try to re-login when it detects that the TGT expired
> --------------------------------------------------------------------------
>
> Key: HADOOP-6559
> URL: https://issues.apache.org/jira/browse/HADOOP-6559
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 0.22.0
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Fix For: 0.22.0
>
> Attachments: h-6559.1.patch, h-6559.2.patch, h-6559.3.patch
>
>
> Currently while making RPC calls, the client will throw an exception if the
> client is not able to use the TGT (expired or timedout). This could be
> improved - it could catch the exception and try doing a re-login.
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