Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.
Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.
Briefly, this error occurs when Elasticsearch tries to iterate over an object that is not an array or collection. This usually happens when you’re using a “foreach” processor in an ingest pipeline and the field you’re trying to iterate over is not an array. To resolve this issue, you can either ensure that the field is an array or collection before using the “foreach” processor, or you can add a conditional check in your pipeline to skip the “foreach” processor if the field is not an array.
For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.
This guide will help you check for common problems that cause the log ” specified foreach object was not a an array/collection: [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “specified foreach object was not a an array/collection: [{}]” class name is ActionWrapper.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
}
} else if (object == null) {
throw new ElasticsearchException("specified foreach object was null: [{}]"; path);
} else {
throw new ElasticsearchException("specified foreach object was not a an array/collection: [{}]"; path);
} // check if we have mixed results; then set to partial failure
final Set statuses = results.stream().map(Action.Result::status).collect(Collectors.toSet());
Action.Result.Status status;
