Exception when bootstrapping with rescheduling – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch encounters an issue during the bootstrapping process, possibly due to configuration errors, network issues, or insufficient resources. To resolve this, you can check the OpenSearch logs for more detailed error messages. Ensure that the configuration files are correct and that the system has enough resources (CPU, memory, disk space). Also, verify that there are no network connectivity issues that could be preventing the bootstrapping process. If the error persists, you may need to reinstall or update OpenSearch.

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This guide will help you check for common problems that cause the log ” exception when bootstrapping with {}; rescheduling ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: cluster.

Log Context

Log “exception when bootstrapping with {}; rescheduling” classname is ClusterBootstrapService.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        assert transportService.getLocalNode().isClusterManagerNode();

        try {
        } catch (Exception e) {
            logger.warn(new ParameterizedMessage("exception when bootstrapping with {}; rescheduling"; votingConfiguration); e);
            transportService.getThreadPool().scheduleUnlessShuttingDown(TimeValue.timeValueSeconds(10); Names.GENERIC; new Runnable() {
                public void run() {


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