[jira] [Commented] (NUTCH-2702) Fetcher: suppress stack for frequent exceptions

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NUTCH-2702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16900095#comment-16900095 ] 

ASF GitHub Bot commented on NUTCH-2702:
---------------------------------------

sebastian-nagel commented on pull request #456: NUTCH-2702 Fetcher: suppress stack for frequent exceptions
URL: https://github.com/apache/nutch/pull/456
 
 
   
 
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> Fetcher: suppress stack for frequent exceptions
> -----------------------------------------------
>
>                 Key: NUTCH-2702
>                 URL: https://issues.apache.org/jira/browse/NUTCH-2702
>             Project: Nutch
>          Issue Type: Improvement
>          Components: fetcher
>    Affects Versions: 1.15
>            Reporter: Sebastian Nagel
>            Assignee: Sebastian Nagel
>            Priority: Minor
>             Fix For: 1.16
>
>
> Fetcher logs the entire Java stack when a fetch fails with an Exception. To reduce the size of the fetcher logs, frequent exceptions with an obvious reason should be logged without stack, at least, for the default log level (INFO).
> Frequent and obvious exceptions are:
> - java.net.UnknownHostException
> - java.net.SocketTimeoutException
> - java.net.ConnectException
> - javax.net.ssl.SSLHandshakeException
> Class name and message should be sufficient by default. For debugging the fetch can be retried with a more verbose log level.



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