OnQueryPhase listener failed – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.2

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Briefly, this error occurs when there’s an issue with the query execution phase in Elasticsearch. This could be due to a poorly structured query, a problem with the data being queried, or a system resource issue. To resolve this, you can try the following: 1) Review and correct the query syntax. 2) Check the data being queried for inconsistencies or corruption. 3) Monitor system resources to ensure Elasticsearch has enough memory and CPU to execute the query. 4) Check the Elasticsearch logs for more detailed error information.

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This guide will help you check for common problems that cause the log ” onQueryPhase listener [{}] failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, query, shard.

Log Context

Log “onQueryPhase listener [{}] failed” classname is SearchOperationListener.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        public void onQueryPhase(SearchContext searchContext; long tookInNanos) {
            for (SearchOperationListener listener : listeners) {
                try {
                    listener.onQueryPhase(searchContext; tookInNanos);
                } catch (Exception e) {
                    logger.warn(() -> new ParameterizedMessage("onQueryPhase listener [{}] failed"; listener); e);
                }
            }
        }

        @Override

 

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