August 2012
Intermediate to advanced
332 pages
7h 3m
English
In order to troubleshoot an HBase cluster, besides a solid knowledge of the cluster you are operating, the tools you use are also important. We would like to recommend the following troubleshooting tools:
ps: This can be used to find the top process that used the most memory and CPUjps: This tool shows the Java processes for the current userjmap: This tool prints the Java heap summaryjstat: This is the Java Virtual Machine statistics monitoring toolhbase hbck: This tool is used for checking and repairing region consistency and table integrityhadoop fsck: This tool is used for checking HDFS consistencyWe will describe sample usage of these tools, ...