Database Reference
In-Depth Information
Figure 11-9. The emulator directory structure
Note
the logging infrastructure changes in the emulator are explained in detail in Chapter 7.
Summary
This chapter walked you through the logging mechanism used in the HDInsight service. Although it focused on
HDInsight-specific logging operations, it gives you a glimpse on how the traditional Apache Hadoop Log4j logging
infrastructure can be leveraged as well. You read about several logging optimizations to avoid logging and maintaining
irrelevant footprints. You also learned about enabling monitoring and logging on your Azure storage account through
the Azure management portal.
Once an HDInsight cluster is operational and when it comes to consuming data, you need to know about logging
the client-side driver calls as well. At the end of the day, data is viewed from interactive client applications like graphs
and charting applications. Logging the Hive ODBC driver calls is very essential because it forms the bridge between
your client consumer and your Hadoop cluster.
 
 
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