Transform encountered an exception – 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 analyzes 2 JSON files to detect many errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Transform encountered an exception ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indexer and plugin.

Log Context

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

         logger.info("[{}] transform received abort request. Stopping indexer."; transformConfig.getId());
        context.shutdown();
    }

    synchronized void handleFailure(Exception e) {
        logger.warn(new ParameterizedMessage("[{}] transform encountered an exception: "; getJobId()); e);
        Throwable unwrappedException = ExceptionRootCauseFinder.getRootCauseException(e);

        if (unwrappedException instanceof CircuitBreakingException) {
            handleCircuitBreakingException((CircuitBreakingException) unwrappedException);
        } else if (unwrappedException instanceof ScriptException) {




 

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