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Briefly, this error occurs when OpenSearch attempts to parse a value as a double data type and fails. This could be due to incorrect data format or a non-numeric value. To resolve this, ensure that the value you’re trying to parse is a valid double. If the data is user-input, validate it before sending to OpenSearch. If the data is from a file or database, check for any inconsistencies or errors in the data. Also, consider using a try-catch block to handle parsing errors and prevent application crashes.
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This guide will help you check for common problems that cause the log ” failed to parse [{}] as a double ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .
Log Context
Log “failed to parse [{}] as a double” class name is MemorySizeValue.java. We extracted the following from OpenSearch source code for those seeking an in-depth context :
if (percent < 0 || percent > 100) {
throw new OpenSearchParseException("percentage should be in [0-100]; got [{}]"; percentAsString);
}
return new ByteSizeValue((long) ((percent / 100) * JvmInfo.jvmInfo().getMem().getHeapMax().getBytes()); ByteSizeUnit.BYTES);
} catch (NumberFormatException e) {
throw new OpenSearchParseException("failed to parse [{}] as a double"; e; percentAsString);
}
} else {
return parseBytesSizeValue(sValue; settingName);
}
}
