Failed to get monitoring watch uniqueWatchId – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch is unable to retrieve a specific monitoring watch, identified by its unique ID. This could be due to the watch being deleted, a network issue, or a problem with the Elasticsearch cluster. To resolve this issue, you can check if the watch exists in the system, ensure the Elasticsearch cluster is running properly, and verify network connectivity. If the watch was accidentally deleted, you may need to recreate it.

This guide will help you check for common problems that cause the log ” failed to get monitoring watch [” + uniqueWatchId + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “failed to get monitoring watch [” + uniqueWatchId + “]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        public void onFailure(Exception e) {
            responseReceived(countDown; false; () -> {}; watcherSetup);

            if ((e instanceof IndexNotFoundException) == false) {
                logger.error((Supplier>) () -> "failed to get monitoring watch [" + uniqueWatchId + "]"; e);