anchor.diff:  
   %% @doc Sends a read request to the Node that is responsible for the Key
   read_data_item(Node, TxId, Key, Type) ->
  -    lager:info("ClockSI-Vnode: read key ~w for TxId ~w ~n",[Key, TxId]),
  +    lager:info("Read issued for key: ~p txid: ~p", [Key, TxId]),
       try
           riak_core_vnode_master:sync_command(Node,
                                               {read_data_item, TxId, Key, Type},
  
positive.code:     end.
  
  %% @doc Sends a prepare request to a Node involved in a tx identified by TxId
  prepare(ListofNodes, Txn) ->
      lager:info("ClockSI-Vnode: prepare TxId ~w ~n",[Txn]),
      riak_core_vnode_master:command(ListofNodes,
                                     {prepare, Txn},
                                     {fsm, undefined, self()},
                                     ?CLOCKSI_MASTER).
  
  %% @doc Sends a commit request to a Node involved in a tx identified by TxId
  commit(ListofNodes, TxId, CommitTime) ->
      lager:info("ClockSI-Vnode: commit TxId ~w ~n",[TxId]),
      riak_core_vnode_master:command(ListofNodes,
                                     {commit, TxId, CommitTime},
                                     {fsm, undefined, self()},
  
negative.code: 
  %% @doc Sends a commit request to a Node involved in a tx identified by TxId
  abort(ListofNodes, TxId) ->
      lager:info("Abort issued for txid: ~p", [TxId]),
      riak_core_vnode_master:command(ListofNodes,
                                     {abort, TxId},
                                     {fsm, undefined, self()},
                                     ?CLOCKSI_MASTER).
  
  %% @doc Initializes all data structures that vnode needs to track information
  %%      the transactions it participates on.
  init([Partition]) ->
      PreparedTx = ets:new(prepared_tx, [set]),
      CommittedTx = ets:new(committed_tx, [set]),
      ActiveTxsPerKey = ets:new(active_txs_per_key, [bag]),
      WriteSet = ets:new(write_set, [duplicate_bag]),
      {ok, #state{partition=Partition,
                  prepared_tx=PreparedTx,
                  committed_tx=CommittedTx,
  