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Elasticsearch Full Crawl with 8GB Heap Stops with Out Of Memory Errors (Doc ID 2441464.1)

Last updated on SEPTEMBER 18, 2018

Applies to:

Oracle WebCenter Portal - Version 12.2.1.3.180417 and later
Information in this document applies to any platform.

Symptoms

On WebCenter Portal (WCP) 12.2.1.3.180417

ACTUAL BEHAVIOR
---------------
Running Elasticsearch full crawl on server with 8GB heap and 6 CPU fails with Out of Memory errors.

Running the initial full crawl of 384K documents causes an Out of Memory error, even when setting the Java Heap to 8GB.
Server has 40GB in total memory.

STEPS
-----------------------
The issue can be reproduced at will with the following steps:
1. Configure elastic search following Configuring Elasticsearch in WebCenter Portal 
2. Start initial full crawl
3. Note elasticsearch server crash with Out Of Memory error

BUSINESS IMPACT
-----------------------
Cannot end initial crawl of Elasticsearch.
Due to this issue, users cannot use search in portal configured with Elasticsearch

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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