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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12489) Ozone: OzoneRestClientException swallows exceptions which makes client hard to debug failures
Date Tue, 19 Sep 2017 10:09:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Weiwei Yang updated HDFS-12489:
-------------------------------
    Attachment: HDFS-12489-HDFS-7240.002.patch

> Ozone: OzoneRestClientException swallows exceptions which makes client hard to debug
failures 
> ----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-12489
>                 URL: https://issues.apache.org/jira/browse/HDFS-12489
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>              Labels: ozoneMerge
>         Attachments: HDFS-12489-HDFS-7240.001.patch, HDFS-12489-HDFS-7240.002.patch
>
>
> There are multiple try-catch places swallow exceptions when transforming some other exception
to {{OzoneRestClientException}}. As a result, when client runs into such code paths, they
lose track of what was going on which makes the debug extremely difficult. See below example
> {code}
> bin/hdfs oz -listBucket  http://15oz1.fyre.ibm.com:9864/vol-0-84022 -user wwei
> Command Failed : {"httpCode":0,"shortMessage":"Read timed out","resource":null,"message":"Read
timed out","requestID":null,"hostName":null}
> {code}
> the returned message doesn't help much on debugging where and how it reads timed out.



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