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https://issues.apache.org/jira/browse/HDFS-8068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee updated HDFS-8068:
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Description: When the InetSocketAddress object happens to be unresolvable
(e.g. due to transient DNS issue), the rpc proxy object will not be usable
since the client will throw UnknownHostException when a Connection object is
created. If FailoverOnNetworkExceptionRetry is used as in the standard HA
failover proxy, the call will be retried, but this will never recover.
Instead, the validity of address must be checked on pxoy creation and throw if
it is invalid.
> Do not retry rpc calls If the proxy contains unresolved address
> ---------------------------------------------------------------
>
> Key: HDFS-8068
> URL: https://issues.apache.org/jira/browse/HDFS-8068
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kihwal Lee
>
> When the InetSocketAddress object happens to be unresolvable (e.g. due to
> transient DNS issue), the rpc proxy object will not be usable since the
> client will throw UnknownHostException when a Connection object is created.
> If FailoverOnNetworkExceptionRetry is used as in the standard HA failover
> proxy, the call will be retried, but this will never recover. Instead, the
> validity of address must be checked on pxoy creation and throw if it is
> invalid.
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