[jira] Commented: (HADOOP-4724) TaskTracker, DataNode, and SecondaryNameNode should timeout on waiting for its server to be up

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-4724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650701#action_12650701 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-4724:
------------------------------------------------

+1 for this change 

Currently, waitForProxy(...) waits forever if there are ConnectException. It seems not right since if the server in the other side is down, the client cannot detect it but keep waiting.

> TaskTracker, DataNode, and SecondaryNameNode should timeout on waiting for its server to be up
> ----------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-4724
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4724
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Hairong Kuang
>             Fix For: 0.20.0
>
>
> TaskTracker, DataNode, and SecondaryNameNode currently wait forever if its server is not up. They should be designed to take a configuration parameter that tells them when to give up, and a default value of many minutes/hours or more to deal with basic choreography issues in a cluster. Test clusters can be set up to fail sooner rather than later.

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