Exception: java.lang.OutOfMemoryError: Java heap space

Elastic Stack Elasticsearch
1

Hi.
I am running ElasticSearch 6.1.3 in a Liferay Installation and I am facing an Exception "java.lang.OutOfMemoryError: Java heap space" that is causing malfunction in Liferay portal.

That's the information I have collected:

    curl -X GET "http://pvmtelastila1:9200/"
    {
      "name" : "pvmtelastila1",
      "cluster_name" : "LiferayCluster",
      "cluster_uuid" : "K2FHedK2T9ulV5bbznxOWw",
      "version" : {
        "number" : "6.1.3",
        "build_hash" : "af51318",
        "build_date" : "2018-01-26T18:22:55.523Z",
        "build_snapshot" : false,
        "lucene_version" : "7.1.0",
        "minimum_wire_compatibility_version" : "5.6.0",
        "minimum_index_compatibility_version" : "5.0.0"
      },
      "tagline" : "You Know, for Search"
    }

    curl -X GET "http://pvmtelastila1:9200/_cat/nodes?v"
    ip             heap.percent ram.percent cpu load_1m load_5m load_15m node.role master name
    172.28.162.212           35          71   5    0.01    0.04     0.05 mdi       -      pvmtelastila3
    172.28.162.211           19          63   4    0.00    0.01     0.05 mdi       -      pvmtelastila2
    172.28.162.210           59          50   8    0.16    0.21     0.22 mdi       *      pvmtelastila1

    curl -X GET "http://pvmtelastila1:9200/_cat/health?v"
    epoch      timestamp cluster        status node.total node.data shards pri relo init unassign pending_tasks max_task_wait_time acti         ve_shards_percent
    1614635607 22:53:27  LiferayCluster red             3         3    258 130    0    0        3             0                  -                          98.9%

    curl -X GET "http://pvmtelastila1:9200/_cat/indices/*?v&s=index&pretty"
    health status index                         uuid                   pri rep docs.count docs.deleted store.size pri.store.size
    green  open   .monitoring-alerts-6          R46WydaSTQCmZTz6O0gFaQ   1   1          2            0     24.6kb         12.3kb
    ... too many entries green
    green  open   liferay-0                     5qwi-dGDQ1iZ2FhPG9NQnw   1   0        266            0      1.5mb          1.5mb
    red    open   liferay-20116                 -G9G1dlDT_ilL1g9QGbtbQ   2   1    4336017       485652     26.9gb         26.9gb

Any suggestions are appreciated.

Regards.

2

Welcome to our community! :smiley:
Please be aware that 6.3 reached EOL in late 2019. You should upgrade as a matter of urgency.

There should be something in your Elasticsearch logs for this, can you post them?