Cloudera Docs

Configure the Java Heap Requirements

Setting the supported Java heap size for the Zookeeper, HBase, HDFS, and Phoenix services, ensures the long-term success of a Workload XM deployment.

Describes how to set the Java heap size in Cloudera Manager for the Workload XM services listed in the following table.
Table 1. Java Heap Size Settings
Service Size Setting Name Minimum Value
ZooKeeper Java Heap Size of ZooKeeper Server in Bytes 4 GB
HBase HBase RegionServer(RegionServer Default Group) 16 GB
HDFS Java Heap Size of NameNode 4 GB
Phoenix Phoenix Query Server Max Heapsize 4 GB
  1. In a supported web browser on the Workload XM cluster, log in to Cloudera Manager.
  2. In Cloudera Manager, select Clusters and then select the Service name. For example, Zookeeper.
  3. In the Service name page, click the Configuration tab and then search for the Size Setting Name. For example, in the Search field, enter java heap, which locates the Java Heap Size of ZooKeeper Server in Bytes setting for the Zookeeper product.
  4. Change the setting to the minimum supported value or higher for the service. For example, change the Java Heap Size of ZooKeeper Server in Bytes setting, to 4 GiB.
  5. Click Save.
  6. Repeat theses steps for each service using the above Java Heap Size Settings table.