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Learning HBase by Shashwat Shriparv

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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 ...

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