k walton created THRIFT-5767:
--------------------------------

             Summary: Go Simple JSON Protocol re-allocates memory for every 
escaped quote
                 Key: THRIFT-5767
                 URL: https://issues.apache.org/jira/browse/THRIFT-5767
             Project: Thrift
          Issue Type: Improvement
          Components: Go - Library
    Affects Versions: 0.19.0
            Reporter: k walton


The current implementation of 
[ParseQuotedStringBody()https://github.com/apache/thrift/blob/0e7236391f9ac7482f2e62a8c30155e015a80aa9/lib/go/thrift/simple_json_protocol.go#L953]
 in the Go lib performs a memory allocation for every escaped quote in a string.

 

This is a particular problem for payloads with escaped JSON, which we ran into 
causing performance issues in our application. Here is an example of the type 
of payload I am referring to.
{code:java}
{   "example_value": "{  \"result\": [    {      \"status\": \"active\",      
\"name\": {        \"first\": \"Olen\",        \"middle\": \"London\",        
\"last\": \"Willms\"      },      \"username\": \"Olen-Willms\",      
\"password\": \"yyBQPf4q2xy7G80\",      \"emails\": [        
\"allene_effe...@gmail.com\",        \"carmen_wucker...@gmail.com\"      ],     
 \"phoneNumber\": \"1-644-222-4224\",      \"location\": {        \"street\": 
\"6475 Lenora Spurs\",        \"city\": \"Alvenaborough\",        \"state\": 
\"Pennsylvania\",        \"country\": \"San Marino\",        \"zip\": 
\"72274-2424\",        \"coordinates\": {          \"latitude\": -40.8732,      
    \"longitude\": 150.3412        }      },      \"website\": 
\"https://only-invention.org\";,      \"domain\": \"firsthand-dredger.info\",    
  \"job\": {        \"title\": \"Legacy Communications Director\",        
\"descriptor\": \"International\",        \"area\": \"Directives\",        
\"type\": \"Representative\",        \"company\": \"Altenwerth - Pouros\"      
},      \"creditCard\": {        \"number\": \"3529-8485-1952-3730\",        
\"cvv\": \"432\",        \"issuer\": \"discover\"      },      \"uuid\": 
\"b3dc62ab-cef6-4b3a-ad26-390e69e15408\",      \"objectId\": 
\"65f4732a2d31b0f2a3c3beec\"    }  ]}" 
}

{code}



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