Failed to flush export bulks – Elasticsearch Error How To Solve Related Issues

Failed to flush export bulks – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 


This guide will help you check for common problems that cause the log “failed to flush export bulks” 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: flush, plugin.

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 discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”failed to flush export bulks”classname  is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final BiConsumer> bulkBiConsumer = (exportBulk; iteratingListener) -> {
  // for every export bulk we flush and pass back the response; which should always be
  // null. When we have an exception; we wrap the first and then add suppressed exceptions
  exportBulk.flush(ActionListener.wrap(iteratingListener::onResponse; e -> {
  if (exceptionRef.get() == null) {
  exceptionRef.set(new ExportException("failed to flush export bulks"; e));
  } else if (e instanceof ExportException) {
  exceptionRef.get().addExportException((ExportException) e);
  } else {

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 Got elasticsearch monitoring broken in kibana -views 979 

ES 7.3.0 cluster crashes with error “failed to flush export bulks” after …  

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