Putting warmer – How to solve related issues

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Putting warmer – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Putting warmer ” 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: admin, indices and warmer.

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 pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

Log “[{}] putting warmer [{}]” classname is TransportPutWarmerAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                             if (indexMetaData == null) {
                                throw new IndexNotFoundException(index);
                            IndexWarmersMetaData warmers = indexMetaData.custom(IndexWarmersMetaData.TYPE);
                            if (warmers == null) {
                                logger.info("[{}] putting warmer [{}]"; index; request.name());
                                warmers = new IndexWarmersMetaData(new IndexWarmersMetaData.Entry(request.name(); request.searchRequest().types(); request.searchRequest().requestCache(); source));
                            } else {
                                boolean found = false;
                                List entries = new ArrayList(warmers.entries().size() + 1);
                                for (IndexWarmersMetaData.Entry entry : warmers.entries()) {


Run the Check-Up to get a customized report like this:

Analyze your cluster