Clusters problems, by nature, can be difficult to troubleshoot. This is due to the increased complexity that a cluster of systems introduces as opposed to diagnosing issues on a single system. However, there are common issues that system administrators are more likely to encounter when deploying or administering a cluster. Understanding how to tackle those common issues can help make deploying and administering a cluster much easier.

This chapter provides information about some common cluster issues and how to troubleshoot them. Additional help can be found in our knowledge base and by contacting an authorized Red Hat support representative. If your issue is related to the GFS2 file system specifically, you can find information about troubleshooting common GFS2 issues in the Global File System 2 document.