Log Failed engine – How To Solve Related Issues


Log Failed engine – 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 ” Failed engine ” 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: index.

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 “Failed engine [{}]” classname is Engine.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 failedEngine.set((failure != null) ? failure : new IllegalStateException(reason));
                try {
                    // we just go and close this engine - no way to recover
                    closeNoLock("engine failed on: [" + reason + "]"; closedLatch);
                } finally {
                    logger.warn(() -> new ParameterizedMessage("failed engine [{}]"; reason); failure);
                    // we must set a failure exception; generate one if not supplied
                    // we first mark the store as corrupted before we notify any listeners
                    // this must happen first otherwise we might try to reallocate so quickly
                    // on the same node that we don't see the corrupted marker file when
                    // the shard is initializing




 

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