Failures bulk indexing the message back log – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.1-8.9

Briefly, this error occurs when Elasticsearch is unable to index the bulk data due to issues like insufficient memory, incorrect data format, or network connectivity problems. To resolve this, you can increase the JVM heap size to provide more memory, ensure the data being indexed is in the correct format, and check your network connection. Also, consider breaking down the bulk data into smaller chunks to ease the indexing process.

This guide will help you check for common problems that cause the log ” Failures bulk indexing the message back log: {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, indexing, bulk.

Log Context

Log “Failures bulk indexing the message back log: {}” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            doc = backlog.poll();

        client.bulk(bulkRequest; ActionListener.wrap(bulkItemResponses -> {
            if (bulkItemResponses.hasFailures()) {
                logger.warn("Failures bulk indexing the message back log: {}"; bulkItemResponses.buildFailureMessage());
            } else {
                logger.trace("Successfully wrote audit message backlog after upgrading template");
            backlog = null;
        }; AbstractAuditor::onIndexFailure));