Creating shared snapshot cache file size= path= – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.12-7.14

Briefly, this error occurs when Elasticsearch is trying to create a shared snapshot cache file but encounters issues due to insufficient disk space, incorrect file path, or permission issues. To resolve this, you can free up some disk space, verify the file path is correct, or check the permissions of the directory where the snapshot cache file is being created. If the issue persists, consider increasing the cache size limit or disabling the shared cache feature if it’s not necessary for your use case.

This guide will help you check for common problems that cause the log ” creating shared snapshot cache file [size={}; path={}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, cache, snapshot.

Log Context

Log “creating shared snapshot cache file [size={}; path={}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            // the file up front
            final ByteBuffer fillBytes = ByteBuffer.allocate(Channels.WRITE_CHUNK_SIZE);
            this.fileChannel =; OPEN_OPTIONS);
            long written = fileChannel.size();
            if (fileSize 


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