Chapter 6. Troubleshooting Impala
In the first part of this chapter, we are going to learn how to troubleshoot various Impala issues in different categories. We will use Impala logging to understand more about Impala execution, query processing, and possible issues. The objective of this chapter is to provide you some critical information about Impala troubleshooting and log analysis, so that you can manage the Impala cluster effectively and make it useful for your team and yourself. Let's start with troubleshooting various problems while managing the Impala cluster.
Troubleshooting various problems
Impala runs on DataNodes in a distributed clustered environment. So when we consider the potential issues with Impala, we also need to think about the ...