How To Solve Issues Related to Log – Unable to execute scroll request

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Last update: Feb-20

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Troubleshooting Background – start here to get the full picture       
Related Issues – selected resources on related issues  
Log Context – usefull for experts
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Troubleshooting background

To troubleshoot Elasticsearch log “Unable to execute scroll request” it’s important to know common problems related to Elasticsearch concepts: delete, delete-by-query, deletebyquery, plugins, request, scroll. See below-detailed explanations complete with common problems, examples and useful tips.

DELETE Elasticsearch API

What is it

DELETE  is an Elasticsearch API which removes a document from a specific index. This API requires an index name and _id document to delete the document. 

Delete a document

DELETE /my_index/_doc/1
Notes
  • A delete request throws 404 error code if the document does not already exist in the index.
  • If you want to delete a set of documents that  matches a query, you need to use delete by query API.


To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

1. Github Issue Number 25820  

2. Github Issue Number 10417      


Log Context

Log ”Unable to execute scroll request” classname is TransportDeleteByQueryAction.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

                         logger.error("scroll request [{}] failed; scrolling document(s) is stopped"; e; scrollId);
                        finishHim(scrollId; hasTimedOut(); e);
                    }
                });
            } catch (Throwable t) {
                logger.error("unable to execute scroll request [{}]"; t; scrollId);
                finishHim(scrollId; false; t);
            }
        }

        void deleteHits(String scrollId; SearchResponse scrollResponse) {






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