Briefly, this error occurs when Elasticsearch is unable to understand the structure or syntax of a query or document due to incorrect formatting or incompatible data types. This could be due to a malformed JSON, incorrect field mapping, or incompatible data types. To resolve this issue, you can: 1) Check and correct the JSON syntax, 2) Verify the field mapping and data types, ensuring they match the data you’re trying to index, 3) Use the Elasticsearch Validate API to validate your query before executing it.
This guide will help you check for common problems that cause the log ” failed to parse [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “failed to parse [{}]” classname is TransportExecuteWatchAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
SequenceNumbers.UNASSIGNED_SEQ_NO;
SequenceNumbers.UNASSIGNED_PRIMARY_TERM
);
executeWatch(request; listener; watch; false);
} catch (IOException e) {
logger.error(new ParameterizedMessage("failed to parse [{}]"; request.getId()); e);
listener.onFailure(e);
}
} else {
listener.onFailure(new IllegalArgumentException("no watch provided"));
}
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