Briefly, this error occurs when Elasticsearch encounters an issue while parsing data, typically due to incorrect data format or corrupted data. This could be due to a malformed JSON input or a mismatch in the expected data type. To resolve this issue, you can: 1) Check the format of your input data to ensure it’s correctly structured. 2) Validate your JSON input for any syntax errors. 3) Check the Elasticsearch logs for more detailed error information. 4) Ensure the data type of the field matches the data type in the index mapping.
This guide will help you check for common problems that cause the log ” io error while parsing ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “io error while parsing” classname is ProcessResultsParser.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
@Override
public boolean hasNext() {
try {
token = parser.nextToken();
} catch (IOException e) {
logger.debug("io error while parsing"; e);
return false;
}
if (token == XContentParser.Token.END_ARRAY) {
return false;
} else if (token != XContentParser.Token.START_OBJECT) {
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