Book Image

Learning HBase

By : Shashwat Shriparv
Book Image

Learning HBase

By: Shashwat Shriparv

Overview of this book

Table of Contents (18 chapters)
Learning HBase
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
Index

Troubleshooting the most frequent HBase errors and their explanations


The following are the places that index information about Hadoop/HBase and other project exceptions, and where we can search for information about Hadoop/HBase errors:

Now, let's see the frequent errors and solutions for these:

For troubleshooting, a log is an excellent place to look into. Now, let's see the default log locations of various daemon processes:

  • NameNode: <hadoop home path>/logs/hadoop-<user>-namenode-<hostname>.log

  • DataNode: <hadoop home path>/logs/hadoop-<user>-datanode-<hostname>.log

  • JobTracker: <hadoop home path>/logs/hadoop-<user>-jobtracker-<hostname>.log

  • TaskTracker: <hadoop home path>/logs/hadoop-<user>-tasktracker-<hostname>.log

  • HMaster: <hadoop home path>/logs/hbase-<user>-master-<hostname>.log...