Failed to close SearcherManager – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.3

Briefly, this error occurs when Elasticsearch is unable to close the SearcherManager, which is responsible for managing the lifecycle of IndexSearchers. This could be due to a resource leak or a problem with the underlying file system. To resolve this issue, you can try restarting the Elasticsearch node, checking for any underlying file system issues, or increasing the file descriptor limit. If the problem persists, consider checking the Elasticsearch logs for more detailed error messages that could provide further insight into the issue.

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

                try {
                    IOUtils.close(externalSearcherManager; internalSearcherManager);
                } catch (Exception e) {
                    logger.warn("Failed to close SearcherManager"; e);
                try {
                } catch (Exception e) {
                    logger.warn("Failed to close translog"; e);


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