Operations only allowed when shard state is one of – Elasticsearch Error How To Solve Related Issues



Operations only allowed when shard state is one of – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 

 

This guide will help you check for common problems that cause the log “operations only allowed when shard state is one of” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: shard, index.


Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”operations only allowed when shard state is one of”classname  is IndexShard.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

}
 
  public void readAllowed() throws IllegalIndexShardStateException {
  IndexShardState state = this.state; // one time volatile read
  if (readAllowedStates.contains(state) == false) {
  throw new IllegalIndexShardStateException(shardId; state; "operations only allowed when shard state is one of " +
  readAllowedStates.toString());
  }
  }
 
  /** returns true if the {@link IndexShardState} allows reading */

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 Why are specific shards unallocated? -views 2,944 

ElasticSearch randomly fails when running tests -views   318,score 1



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