How To Solve Issues Related to Log – Failed to notify listeners

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Troubleshooting background

To troubleshoot Elasticsearch log “Failed to notify listeners” it’s important to know common problems related to Elasticsearch concepts: listeners, snapshots. See below-detailed explanations complete with common problems, examples and useful tips.


To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

1. Iled To Notify Project Evaluation L  

2. Droid Failed To Notify Project Eval      


Log Context

Log ”Failed to notify listeners” classname is SnapshotsService.java
We have extracted the following from Elasticsearch source code to get an in-depth context :

                             ActionListener.onFailure(completionListeners; failure);
                        } else {
                            ActionListener.onResponse(completionListeners; snapshotInfo);
                        }
                    } catch (Exception e) {
                        logger.warn("Failed to notify listeners"; e);
                    }
                }
                endingSnapshots.remove(snapshot);
                if (listener != null) {
                    listener.onResponse(snapshotInfo);






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