Updating floor segment from to – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 1.3-1.3

Briefly, this error occurs when Elasticsearch is trying to update a floor segment, which is a part of the index, but encounters an issue. This could be due to a variety of reasons such as insufficient disk space, corrupted index, or a bug in Elasticsearch. To resolve this issue, you can try freeing up disk space, rebuilding the index, or updating Elasticsearch to the latest version. If the problem persists, you may need to look into the specific error details or logs for more information.

This guide will help you check for common problems that cause the log ” updating [floor_segment] from [{}] to [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index and merge.

Log Context

Log “updating [floor_segment] from [{}] to [{}]” classname is TieredMergePolicyProvider.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :


            ByteSizeValue floorSegment = settings.getAsBytesSize(INDEX_MERGE_POLICY_FLOOR_SEGMENT; TieredMergePolicyProvider.this.floorSegment);
            if (!floorSegment.equals(TieredMergePolicyProvider.this.floorSegment)) {
                logger.info("updating [floor_segment] from [{}] to [{}]"; TieredMergePolicyProvider.this.floorSegment; floorSegment);
                TieredMergePolicyProvider.this.floorSegment = floorSegment;
                for (CustomTieredMergePolicyProvider policy : policies) {


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