Downloaded translog files from remote for shard – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 2.8-2.8

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Briefly, this error occurs when OpenSearch is trying to recover a shard from a node and it downloads the transaction log (translog) files from a remote node. This is part of the shard recovery process and it’s not necessarily an error, but more of an informational message. If you’re seeing issues with shard recovery, you may want to check the health of your nodes, ensure there’s enough disk space, and that network connectivity between nodes is stable. Also, consider adjusting the ‘indices.recovery.max_bytes_per_sec’ setting if recovery is slow.

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This guide will help you check for common problems that cause the log ” Downloaded translog files from remote for shard {} ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: shard, index.

Log Context

Log “Downloaded translog files from remote for shard {}” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        }"Downloaded translog files from remote for shard {} "; translogTransferManager.getShardId());

    public static TranslogTransferManager buildTranslogTransferManager(
        BlobStoreRepository blobStoreRepository;
        ThreadPool threadPool;


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