[jira] [Assigned] (OOZIE-2844) Increase stability of Oozie actions when log4j.properties is missing or not readable

["Andras Piros (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OOZIE-2844?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andras Piros reassigned OOZIE-2844:
-----------------------------------

    Assignee: Andras Piros

> Increase stability of Oozie actions when log4j.properties is missing or not readable
> ------------------------------------------------------------------------------------
>
>                 Key: OOZIE-2844
>                 URL: https://issues.apache.org/jira/browse/OOZIE-2844
>             Project: Oozie
>          Issue Type: Improvement
>          Components: action
>    Affects Versions: 4.3.0
>            Reporter: Andras Piros
>            Assignee: Andras Piros
>
> In several Oozie actions we face the problem that if {{log4j.properties}} is not readable by current thread, or not present on the classpath, while taking an {{URL.openStream()}} call afterwards, an {{IOException}} is thrown and the action won't run.
> Such actions are:
> * [*{{DistcpMain}}*|https://github.com/apache/oozie/blob/master/sharelib/distcp/src/main/java/org/apache/oozie/action/hadoop/DistcpMain.java#L135]
> * [*{{HiveMain}}*|https://github.com/apache/oozie/blob/master/sharelib/hive/src/main/java/org/apache/oozie/action/hadoop/HiveMain.java#L146]
> * [*{{PigMain}}*|https://github.com/apache/oozie/blob/master/sharelib/pig/src/main/java/org/apache/oozie/action/hadoop/PigMain.java#L173]
> * [*{{PigMainWithOldApi}}*|https://github.com/apache/oozie/blob/master/sharelib/pig/src/main/java/org/apache/oozie/action/hadoop/PigMainWithOldAPI.java#L160]
> * [*{{SparkMain}}*|https://github.com/apache/oozie/blob/master/sharelib/spark/src/main/java/org/apache/oozie/action/hadoop/SparkMain.java#L430]
> * [*{{SqoopMain}}*|https://github.com/apache/oozie/blob/master/sharelib/sqoop/src/main/java/org/apache/oozie/action/hadoop/SqoopMain.java#L124]
> Extend [*{{LauncherMain.run()}}*|https://github.com/apache/oozie/blob/master/sharelib/oozie/src/main/java/org/apache/oozie/action/hadoop/LauncherMain.java#L62-L65] by a convenience method that loads Hadoop's {{log4j.properties}} in beforehand. In case {{URL.openStream()}} would throw {{IOException}} we resort to a call to a new file {{hadoop-default-log4j.properties}} on the classpath (packaged along w/ {{LauncherMain.class}}) that has the same contents as the {{log4j.properties}} that is not accessible / readable / present.



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