Isolating datafeeds – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch Machine Learning feature tries to isolate datafeeds due to some issues like node failures, resource constraints, or configuration problems. To resolve this, you can try the following: 1) Check the health of your nodes and ensure they are functioning properly. 2) Review your resource allocation and increase it if necessary. 3) Check your datafeed configurations for any inconsistencies or errors and correct them. 4) Restart the datafeeds after addressing the issues.

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

Log Context

Log “Isolating datafeeds: ” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        PersistentTasksCustomMetadata tasksCustomMetadata;
        ActionListener> listener
    ) {
        Set datafeedsToIsolate = MlTasks.startedDatafeedIds(tasksCustomMetadata);"Isolating datafeeds: " + datafeedsToIsolate.toString());
        TypedChainTaskExecutor isolateDatafeedsExecutor = new TypedChainTaskExecutor(
            r -> true;
            ex -> true