How to increase elasticsearch heap size Custom Edition

How To

Summary

How to increase Elasticsearch Heap size memory in Custom Edition

Objective

When ElasticSearch heap size hits the limit, the pods restarts frequently . When checking the logs could see that Java heap out of memory errors

Environment

Self-Hosted Custom Edition (K8s or OCP)

Steps

Edit the elasticsearch.yaml and apply the changes or edit the Elasticsearch CRD directly. This is the spec example:

spec:
  nodeSets:
    - name: default
      count: 3
      podTemplate:
        spec:
          containers:
            - name: elasticsearch
              resources:
                requests:
                  memory: 4Gi
                limits:
                  memory: 4Gi
              env:
                - name: ES_JAVA_OPTS
                  value: "-Xms2g -Xmx2g"

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB67","label":"IT Automation \u0026 App Modernization"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSE1JP5","label":"IBM Instana Observability Self-Hosted"},"ARM Category":[{"code":"a8m3p000000UoUVAA0","label":"Backend On-Prem"}],"ARM Case Number":"TS017740140","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"}]

Product Synonym

Instana

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Document Information

Modified date:
24 January 2025

UID

ibm17177246

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