Unable to close Groovy loader – How to solve related issues

Unable to close Groovy loader – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

 

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Unable to close Groovy loader ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: Index and Memory.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

Log “Unable to close Groovy loader” classname is GroovyScriptEngineService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             
Override
            public Void run() {
                try {
                    loader.close();
                } catch (IOException e) {
                    logger.warn("Unable to close Groovy loader"; e);
                }
                return null;
            }
        });
    }



 

Run the Check-Up to get customized recommendations like this:

checklist Run Check-Up

error

Heavy merges detected in specific nodes

error-img

Description

A large number of small shards can slow down searches and cause cluster instability. Some indices have shards that are too small…

error-img

Recommendations Based on your specific ES deployment you should…

Based on your specific ES deployment you should…

1

X-PUT curl -H [a customized code snippet to resolve the issue]

 

 

 

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