Briefly, this error occurs when Elasticsearch is unable to parse a schedule because it expects an object or an array, but it received a different data type. This usually happens when setting up a scheduled event or task in Elasticsearch. To resolve this issue, you should check the schedule syntax in your request. Ensure that the schedule is correctly formatted as an object or an array. If it’s an object, it should be enclosed in curly braces {}. If it’s an array, it should be enclosed in square brackets [].
This guide will help you check for common problems that cause the log ” could not parse [{}] schedule. expected either an object or an array ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “could not parse [{}] schedule. expected either an object or an array” class name is YearlySchedule.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
throw new ElasticsearchParseException("could not parse [{}] schedule. invalid year times"; pe; TYPE);
}
}
return times.isEmpty() ? new YearlySchedule() : new YearlySchedule(times.toArray(new YearTimes[times.size()]));
}
throw new ElasticsearchParseException("could not parse [{}] schedule. expected either an object or an array " +
"of objects representing year times; but found [{}] instead"; TYPE; parser.currentToken());
}
} public static class Builder {
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