Can t execute a bulk – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch is unable to perform multiple operations in a single API call, typically due to insufficient resources or incorrect data formatting. To resolve this, you can increase the system resources, particularly memory, or split the bulk operation into smaller chunks. Also, ensure that the data is correctly formatted and doesn’t contain any invalid entries. If the issue persists, check the Elasticsearch logs for more specific error messages.

This guide will help you check for common problems that cause the log ” Can’t execute a bulk ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, bulk.

Log Context

Log “Can’t execute a bulk” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 boolean dls = indexAccessControl.getDocumentPermissions().hasDocumentLevelPermissions();
 // the feature usage checker is a "last-ditch" verification; it doesn't have practical importance
 if ((fls || dls) && licenseChecker.get()) {
 found = true;
 logger.trace("aborting bulk item update request for index [{}]"; bulkShardRequest.index());
 bulkItemRequest.abort(bulkItemRequest.index(); new ElasticsearchSecurityException("Can't execute a bulk " +
 "item request with update requests embedded if field or document level security is enabled";
 if (found == false) {


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