README on how to run stores and clients

store/README.md

+# How to Run
+
+The clients and servers have to be provided a configuration file, one
+for each shard and a timestamp server (for OCC). For example a 3 shard
+configuration will have the following files:
+
+shard0.config
+```
+f 1  
+replica <server-address-1>:<port>
+replica <server-address-2>:<port>
+replica <server-address-3>:<port>
+```
+shard1.config
+```
+f 1
+replica <server-address-4>:<port>
+replica <server-address-5>:<port>
+replica <server-address-6>:<port>
+```
+shard2.config
+```
+f 1
+replica <server-address-7>:<port>
+replica <server-address-8>:<port>
+replica <server-address-9>:<port>
+```
+shard.tss.config
+```
+f 1
+replica <server-address-10>:<port>
+replica <server-address-11>:<port>
+replica <server-address-12>:<port>
+```
+
+## Running Servers
+To start the replicas, run the following command with the `server`
+binary for any of the stores,
+
+`./server -c <shard-config-$n> -i <replica-number> -m <mode> -f <preload-keys>`
+
+For each shard, you need to run `2f+1` instances of `server`
+corresponding to the address:port pointed by `replica-number`.
+Make sure you run all replicas for all shards.
+
+
+## Running Clients
+To run any of the clients in the benchmark directory,
+
+`./client -c <shard-config-prefix> -N <n_shards> -m <mode>`

store/common/frontend/client.h

@@ -40,13 +40,13 @@ public:
 
     // Sharding logic: Given key, generates a number b/w 0 to nshards-1
     uint64_t key_to_shard(const std::string &key, uint64_t nshards) {
-	uint64_t hash = 5381;
-	const char* str = key.c_str();
-	for (unsigned int i = 0; i < key.length(); i++) {
-	    hash = ((hash << 5) + hash) + (uint64_t)str[i];
-	}
+        uint64_t hash = 5381;
+        const char* str = key.c_str();
+        for (unsigned int i = 0; i < key.length(); i++) {
+            hash = ((hash << 5) + hash) + (uint64_t)str[i];
+        }
 
-	return (hash % nshards);
+        return (hash % nshards);
     };
 };