How To Solve Issues Related to Log – Suspect illegal state: trying to move shard from primary mode to replica mode

How To Solve Issues Related to Log – Suspect illegal state: trying to move shard from primary mode to replica mode

Updated: Feb-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “Suspect illegal state: trying to move shard from primary mode to replica mode” it’s important to understand a few problems related to Elasticsearch concepts index, shard. See bellow important tips and explanations on these concepts

Log Context

Log”suspect illegal state: trying to move shard from primary mode to replica mode” classname is IndexShard.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     "; new " + newRouting);
        }
        try {
            if (currentRouting != null) {
                if (!newRouting.primary() && currentRouting.primary()) {
                    logger.warn("suspect illegal state: trying to move shard from primary mode to replica mode");
                }
                // if its the same routing except for some metadata info; return
                if (currentRouting.equalsIgnoringMetaData(newRouting)) {
                    this.shardRouting = newRouting; // might have a new version
                    return;




Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Github Issue Number 20308  

Suspect Illegal State Trying To Mov  

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