Hash function added

server.cpp

@@ -38,6 +38,7 @@ int *worker_id;
 pthread_cond_t startRpcs;
 pthread_mutex_t myLock;
 bool start;
+int mod;
 
 memoryManagement *memManager;
 
@@ -55,6 +56,14 @@ void getConfig() {
     config.close();
 }
 
+int getHash(string key) {
+    int hash = 0;
+    for(auto c : key) {
+        hash = (hash + c) % mod;
+    }
+    return hash;
+}
+
 class CallData {
 public:
     CallData(KeyValueServices::AsyncService *service, ServerCompletionQueue *cq, RequestType reqType) : service(service), cq(cq), getResponder(&context), putResponder(&context), delResponder(&context), status(CREATE), reqType(reqType) {
@@ -79,6 +88,9 @@ public:
                 string v = memManager->get(&status, key.key());
                 pthread_mutex_unlock(&_masterLock);
 
+                //Calculate hash
+                // cout<<getHash(key.key())<<endl;
+
                 value.set_value(v);
                 if (status == 200)
                     value.set_status(200);
@@ -188,6 +200,8 @@ int main(int agrc, char **argv) {
     start = false;
     getConfig();
 
+    mod = stoi(params.find("NUMBER_OF_KEY")->second);
+
     int num_threads = stoi(params.find("NUM_SERVER_THREADS")->second);
     int port = stoi(params.find("LISTENING_PORT")->second);
     string server_address("0.0.0.0:" + to_string(port));

[Vishal Vishnu]

We can hash using SHA 1 algorithms as mentioned in chord paper Because it will inherently help with load balancing