How To Solve Issues Related to Log – Failed to clear scroll

How To Solve Issues Related to Log – Failed to clear scroll

Updated: Feb-20

Elasticsearch Version: 1.7-8.0


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To troubleshoot log “Failed to clear scroll” it’s important to understand a few problems related to Elasticsearch concepts bulk, index, reindex, scroll. See bellow important tips and explanations on these concepts

Log Context

Log”Failed to clear scroll [“ classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     logger.debug("Freed [{}] contexts"; response.getNumFreed());

                public void onFailure(Throwable e) {
                    logger.warn("Failed to clear scroll [" + scrollId + ']'; e);
        if (failure == null) {

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Why does this ElasticSearch scan and scroll keep returning the same scroll id?

9.29 K 22

Github Issue Number 22937  

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