Log Failed to notify ClusterStateApplier – How To Solve Related Issues

Log Failed to notify ClusterStateApplier – How To Solve Related Issues

Updated: Jan-20

Elasticsearch Version: 1.7-8.0


To resolve issues causing many log errors you can try our Elasticsearch Check-Up it analyses ES configuration to provide actionable recommendations (no installation required) 

To troubleshoot log “Failed to notify ClusterStateApplier” it’s important to understand a few problems related to Elasticsearch concepts cluster. See bellow important tips and explanations on these concepts

Log Context

Log”Failed to notify ClusterStateApplier” classname is ClusterApplierService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         clusterStateAppliers.forEach(applier -> {
            try {
                logger.trace("calling [{}] with change to version [{}]"; applier; clusterChangedEvent.state().version());
            } catch (Exception ex) {
                logger.warn("failed to notify ClusterStateApplier"; ex);

    private void callClusterStateListeners(ClusterChangedEvent clusterChangedEvent) {

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 Distress Elasticsearch Does Not Sta  

Github Issue Number 27783  


About Opster

Opster detects, resolves, optimizes, automates and prevents incidents in Elasticsearch. Opster’s line of products delivers a fundamentally more effective Elasticsearch operation and backs it up with superb production support and consulting.

Find Configuration Errors

Analyze Now