Failed to access searcher manager – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to access the searcher manager, which is responsible for managing and controlling search operations. This could be due to issues like insufficient permissions, corrupted indices, or network connectivity problems. To resolve this, you can try restarting Elasticsearch, checking and adjusting the permissions, repairing or deleting and recreating the corrupted indices, or troubleshooting the network connection.

This guide will help you check for common problems that cause the log ” failed to access searcher manager ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “failed to access searcher manager” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            try {
                try (Searcher searcher = acquireSearcher("refresh_needed"; SearcherScope.EXTERNAL)) {
                    return searcher.getDirectoryReader().isCurrent() == false;
            } catch (IOException e) {
                logger.error("failed to access searcher manager"; e);
                failEngine("failed to access searcher manager"; e);
                throw new EngineException(shardId; "failed to access searcher manager"; e);
            } finally {