[HDFS-14543] RBF: RouterRpcClient shouldn't retry when the remoteException is RetryException

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Component/s: rbf
• Assignee: ZanderXu
• Reporter: ZanderXu
• Created: 04/Jun/19 14:39
• Updated: 21/Nov/19 11:53
• Resolved: 21/Nov/19 11:52

Description

Currently RouterRpcClient will retry when the remote exception is RetryException.

And it will use one handler to retry 3 times, if the remote exception is always RetryException.

Although there is no sleep between retries, but it may costs some other resources.

So, RouterRpcClient show return the RetryException to client if the name node returns RetryException, and do sleep at client.

After sleep some times, client can request the same Router.