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

Last updated on FEBRUARY 08, 2019

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

Running Elasticsearch full crawl on a 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 Elasticsearch following Configuring Elasticsearch in WebCenter Portal 
2. Start initial full crawl
3. Note that the Elasticsearch server crashes with Out Of Memory error



Cause

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In this Document
Symptoms
Cause
Solution
References


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