GitHub user XuTingjun opened a pull request:

    https://github.com/apache/spark/pull/6893

    [SPARK-8391] catch the Throwable and report error to DAG graph

    1. Maybe there has different Throwables while making dot file, in order to 
prevent the whole page dies, I think using try-catch is a reasonable resolution.
    2. When making dot file occurs Throwable, report error to DAG graph, to 
tell user what happens.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/XuTingjun/spark SPARK-8391

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/spark/pull/6893.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #6893
    
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commit b2afade781a296d15b53848a98b158da8874a46e
Author: xutingjun <xuting...@huawei.com>
Date:   2015-06-19T02:11:58Z

    catch the Throwable and report error to DAG graph

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