Could not perform time series aggregation – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.1-8.9

Briefly, this error occurs when Elasticsearch is unable to execute a time series aggregation due to issues like incorrect field type, incorrect date format, or insufficient memory. To resolve this, ensure the field you’re aggregating on is of the correct type (date or numeric). Check the date format if it’s a date field. If the issue persists, consider increasing the heap size of Elasticsearch or optimizing your query to consume less memory.

This guide will help you check for common problems that cause the log ” Could not perform time series aggregation ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: search, aggregations.

Log Context

Log “Could not perform time series aggregation” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 try {; bucketCollector);
 } catch (IOException e) {
 throw new AggregationExecutionException("Could not perform time series aggregation"; e);
 collector = BucketCollector.NO_OP_COLLECTOR;
 } else {
 collector = bucketCollector.asCollector();