Log Starting template upgrade to version ; templates will be updated and will be removed – How To Solve Related Issues


Log Starting template upgrade to version ; templates will be updated and will be removed – 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 that cause many errors.

This guide will help you check for common problems that cause the log ” Starting template upgrade to version ; templates will be updated and will be removed ” 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, metadata, template, upgrade and version.

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 “Starting template upgrade to version {}; {} templates will be updated and {} will be removed” classname is TemplateUpgradeService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 
        lastTemplateMetaData = templates;
        Optional; Set>> changes = calculateTemplateChanges(templates);
        if (changes.isPresent()) {
            if (upgradesInProgress.compareAndSet(0; changes.get().v1().size() + changes.get().v2().size() + 1)) {
                logger.info("Starting template upgrade to version {}; {} templates will be updated and {} will be removed";
                    Version.CURRENT;
                    changes.get().v1().size();
                    changes.get().v2().size());

                final ThreadContext threadContext = threadPool.getThreadContext();




 

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