After allocating; node would have less than the required threshold of – How to solve related issues

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After allocating; node would have less than the required threshold of – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” After allocating; node would have less than the required threshold of ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: allocation, cluster, node, routing and threshold.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “After allocating; node [{}] would have less than the required threshold of” classname is DiskThresholdDecider.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         final long shardSize = getExpectedShardSize(shardRouting; allocation; 0);
        assert shardSize >= 0 : shardSize;
        double freeSpaceAfterShard = freeDiskPercentageAfterShardAssigned(usage; shardSize);
        long freeBytesAfterShard = freeBytes - shardSize;
        if (freeBytesAfterShard 

 

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