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3123830 - How to improve the Jgroup stablity

Symptom

The large environment with multiple virtual machines host in Commerce Cloud V2, some virtual machines are out of the cluster unexpectedly, those faulty virtual machines are still in the normal status,  but the following error can be found in the Kibana log:

{
  "_index": "flb-2021.10.12",
  "_type": "flb_type",
  "_id": "d3b7a2f3-29c4-1f7e-3cd5-404149995fe1",
  "_version": 1,
  "_score": null,
  "_source": {
    "@fb_timestamp": "2021-10-12T17:25:58.919Z",
    "log": "{\"@version\":1,\"source_host\":\"accstorefront-******-*****\",\"message\":\"JGRP000032: hybrisnode-10: no physical address for hybrisnode-22, dropping message\",\"thread_name\":\"TQ-Bundler-8,hybris-broadcast,hybrisnode-10\",\"@timestamp\":\"2021-10-12T19:25:58.919+02:00\",\"level\":\"WARN\",\"logger_name\":\"org.jgroups.protocols.TCP\"}\n",
    "stream": "stdout",
    "time": "2021-10-12T17:25:58.919848915Z",
    "logs": {
      "@version": 1,
      "source_host": "accstorefront-******-*****",
      "message": "JGRP000032: hybrisnode-10: no physical address for hybrisnode-22, dropping message",
      "thread_name": "TQ-Bundler-8,hybris-broadcast,hybrisnode-10",
      "@timestamp": "2021-10-12T19:25:58.919+02:00",
      "level": "WARN",
      "logger_name": "org.jgroups.protocols.TCP"
    },
    "kubernetes": {
      "pod_name": "accstorefront-6649b445f8-ndrmh",
      "namespace_name": "default",
      "pod_id": "47fa942e-6b8c-44b9-8013-9a264e2320c0",
      "labels": {
        "app_kubernetes_io/component": "backend",
        "app_kubernetes_io/managed-by": "hybris-operator",
        "app_kubernetes_io/name": "hybris",
        "app_kubernetes_io/part-of": "hybris",
        "ccv2_cx_sap_com/platform-aspect": "accstorefront",
        "pod-template-hash": "6649b445f8"
      },
      "annotations": {
        "ccv2_cx_sap_com/apply-config-revision": "4",
        "ccv2_cx_sap_com/build-code": "20211011.6",
        "ccv2_cx_sap_com/deployment-id": "305856",
        "cni_projectcalico_org/podIP": "10.245.54.9/32",
        "fluentbit_io/parser": "mt-accstorefront",
        "platform-security-configmap-hash": "1996966820"
      },
      "host": "k8s-cmb8j9fjhzem-61467557-vmss00005o",
      "container_name": "platform",
      "docker_id": "f500c28fdd2ac423a87da04304fbb1bab3f4185086763cff1a4e95730e08efe4"
    }
  },
  "fields": {
    "@fb_timestamp": [
      "2021-10-12T17:25:58.919Z"
    ],
    "logs.@timestamp": [
      "2021-10-12T17:25:58.919Z"
    ],
    "time": [
      "2021-10-12T17:25:58.919Z"
    ]
  },
  "highlight": {
    "kubernetes.pod_name": [
      "@kibana-highlighted-field@accstorefront@/kibana-highlighted-field@-@kibana-highlighted-field@6649b445f8@/kibana-highlighted-field@-@kibana-highlighted-field@ndrmh@/kibana-highlighted-field@"
    ]
  },
  "sort": [
    1634059558919
  ]

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Environment

SAP Commerce Cloud V2

Product

SAP Commerce Cloud all versions

Keywords

jgroup, jgroup-tcp.xml, no physical address , KBA , CEC-HCS-CCAZ-OPS , OPS component for General environment management , How To

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