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https://issues.apache.org/jira/browse/HADOOP-2165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630090#action_12630090
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Arun C Murthy commented on HADOOP-2165:
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This is mostly looking good, some comments:
1. I don't think it's worth the effort to do the HTTP HEAD, since the 2s
timeout might be too small if the http server is loaded etc. I'd rather put the
link up and let the user click on it and let the browser handle it.
2. In JobHistory.logStarted the conversion from List (to subList) and then
array isn't necessary: we should do something like:
{code}
Keys[] keys = null;
if (infoUrl == null) {
keys = new Keys[] {a, b};
} else {
keys = new Keys[] {a,b, c};
{code}
> Augment JobHistory to store tasks' userlogs
> -------------------------------------------
>
> Key: HADOOP-2165
> URL: https://issues.apache.org/jira/browse/HADOOP-2165
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Arun C Murthy
> Assignee: Vinod K V
> Attachments: HADOOP-2165-20080910.1.txt, patch_userlog_1.4.3.txt
>
>
> It will be very useful to be able to see the job's userlogs (the
> stdout/stderr/syslog of the tasks) from the JobHistory page. It will greatly
> aid in debugging etc.
> At the very minimum we should have links from the JobHistory to the logs on
> the TT.
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