Help Center/ MapReduce Service/ User Guide (Kuala Lumpur Region)/ MRS Cluster Component Operation Gudie/ Using HBase/ HBase Performance Tuning/ Optimizing JVM Parameters
Updated on 2022-08-12 GMT+08:00
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Optimizing JVM Parameters

Scenario

When the number of clusters reaches a certain scale, the default settings of the Java virtual machine (JVM) cannot meet the cluster requirements. In this case, the cluster performance deteriorates or the clusters may be unavailable. Therefore, JVM parameters must be properly configured based on actual service conditions to improve the cluster performance.

Procedure

Navigation path for setting parameters:

The JVM parameters related to the HBase role must be configured in the hbase-env.sh file in the ${BIGDATA_HOME}/FusionInsight_HD_*/install/FusionInsight-HBase-2.2.3/hbase/conf/ directory of the node where the HBase service is installed.

Each role has JVM parameter configuration variables, as shown in Table 1.

Table 1 HBase-related JVM parameter configuration variables

Variable

Affected Role

HBASE_OPTS

All roles of HBase

SERVER_GC_OPTS

All roles on the HBase server, such as Master and RegionServer

CLIENT_GC_OPTS

Client process of HBase

HBASE_MASTER_OPTS

Master of HBase

HBASE_REGIONSERVER_OPTS

RegionServer of HBase

HBASE_THRIFT_OPTS

Thrift of HBase

Configuration example:

export HADOOP_NAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS} -Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_NAMENODE_OPTS"
Parent topic: HBase Performance Tuning