HBase Failed to Start Due to Insufficient Node Memory

Symptom

The RegionServer service of HBase is always in the Restoring state.

Cause Analysis

1. Check the RegionServer log (/var/log/Bigdata/hbase/rs/hbase-omm-XXX.out). It is found that the following information is printed:

   There is insufficient memory for the Java Runtime Environment to continue.

2. Run the free command to check the memory. It is found that the available memory of the node is insufficient.

Solution

1. Locate why the memory is insufficient. It is found that some processes occupy too much memory or the server does not have sufficient memory.