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I am trying to update an item in was dynamoDB using nodes, db.updateItem(query).
I am getting the following error :
Invalid UpdateExpression: Expression size has exceeded the maximum allowed size dynamodb
On reading few posts, I realised that dynamoDB allows itemSize to be 400KB and that might be a problem here. But if that is the problem, why did it allow to insert the item in the first place.
I am not sure what exactly the issue. Any help would be appreciated.
Please let me know if I missed any required information
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Item size. The maximum item size in DynamoDB is 400 KB, which includes both attribute name binary length (UTF-8 length) and attribute value lengths (again binary length). The attribute name counts towards the size limit.
An update expression specifies how UpdateItem will modify the attributes of an item—for example, setting a scalar value or removing elements from a list or a map. The following is a syntax summary for update expressions. update-expression ::= [ SET action [, action ] ... ]
The AWS Command "describe-table" will give you metadata for the given table. "TableSizeBytes": 0, Which will give you "The total size of the specified table, in bytes. DynamoDB updates this value approximately every six hours.
You are probably hitting Expression Parameters limits. Please refer to:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Limits.html#limits-expression-parameters
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