Failed lookback import for job – How to solve related issues

Opster Team

Jan-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 ” Failed lookback import for job ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “Failed lookback import for job [” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         holder.cancellable =
            Scheduler.wrapAsCancellable(threadPool.executor(MachineLearning.DATAFEED_THREAD_POOL_NAME).submit(new AbstractRunnable() {

            public void onFailure(Exception e) {
                logger.error("Failed lookback import for job [" + holder.datafeedJob.getJobId() + "]"; e);
                holder.stop("general_lookback_failure"; TimeValue.timeValueSeconds(20); e);

            protected void doRun() {


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