Shadow replica failed to close searcher manager – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

Briefly, this error occurs when Elasticsearch fails to close the searcher manager for a shadow replica. This could be due to a network issue, a node failure, or a problem with the underlying storage system. To resolve this issue, you can try restarting the Elasticsearch node, checking the network connectivity, or verifying the health of your storage system. If the problem persists, consider reindexing the data or increasing the timeout settings.

This guide will help you check for common problems that cause the log ” shadow replica failed to close 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 “shadow replica failed to close searcher manager” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         if (isClosed.compareAndSet(false; true)) {
            try {
                logger.debug("shadow replica close searcher manager refCount: {}"; store.refCount());
            } catch (Throwable t) {
                logger.warn("shadow replica failed to close searcher manager"; t);
            } finally {


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