Encountered unexpected error while waiting for – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch is waiting for a response from a request but encounters an unexpected error. This could be due to network issues, overloaded server, or a problem with the request itself. To resolve this, you can try the following: 1) Check the server’s health and load, and if necessary, scale up resources or balance the load. 2) Review the request sent to Elasticsearch for any errors or inconsistencies. 3) Check the network connection between the client and the Elasticsearch server. 4) Look at the Elasticsearch logs for more detailed error information.

This guide will help you check for common problems that cause the log ” Encountered unexpected error while waiting for ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “Encountered unexpected error while waiting for” class name is TransportStopRollupAction.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 + ((RollupJobStatus) jobTask.getStatus()).getIndexerState() + "]"));
 } catch (InterruptedException e) {
 } catch (Exception e) {
 listener.onFailure(new ElasticsearchTimeoutException("Encountered unexpected error while waiting for " +
 "rollup job [" + request.getId() + "] to stop.  State was ["
 + ((RollupJobStatus) jobTask.getStatus()).getIndexerState() + "]."; e));


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