Log Creating index; cause ; templates ; shards /; mappings – How To Solve Related Issues

Log Creating index; cause ; templates ; shards /; mappings – How To Solve Related Issues

Opster Team

Jan-20, 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 log errors (free and no installation required)


This guide will help you check for common problems that cause the log “Creating index; cause ; templates ; shards /; mappings” 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: cluster, index, metadata, shards.

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. 

Log Context

Log”[{}] creating index; cause [{}]; templates {}; shards [{}]/[{}]; mappings {}” classname is MetaDataCreateIndexService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                MetaData newMetaData = MetaData.builder(currentState.metaData())
                    .put(indexMetaData; false)

                logger.info("[{}] creating index; cause [{}]; templates {}; shards [{}]/[{}]; mappings {}";
                    request.index(); request.cause(); templateNames; indexMetaData.getNumberOfShards();
                    indexMetaData.getNumberOfReplicas(); mappings.keySet());

                ClusterBlocks.Builder blocks = ClusterBlocks.builder().blocks(currentState.blocks());
                if (!request.blocks().isEmpty()) {


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 Initial Startup Bulk Api Does Not U  

Understanding Index Creation  


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