Cassandra Ok Select Trace

cqlsh:us> select * from subscribers_all where subscriber = 'xyz'; (it's not actually xyz, but assume it is)
...(result)

Tracing session: 63ca8180-63f5-11e3-b860-ad29953e270b

 activity                                                                                      | timestamp    | source         | source_elapsed
-----------------------------------------------------------------------------------------------+--------------+----------------+----------------
                                                                            execute_cql3_query | 14:52:14,361 | 172.16.217.222 |              0
 Parsing select * from subscribers_all where subscriber = 'xyz' LIMIT 10000; | 14:52:14,361 | 172.16.217.222 |            131
                                                                           Preparing statement | 14:52:14,361 | 172.16.217.222 |            572
                                                     Enqueuing data request to /172.16.217.225 | 14:52:14,362 | 172.16.217.222 |            894
                                                            Sending message to /172.16.217.225 | 14:52:14,362 | 172.16.217.222 |           1102
                                                         Message received from /172.16.217.222 | 14:52:14,363 | 172.16.217.225 |            273
                                    Executing single-partition query on subscribers_all | 14:52:14,364 | 172.16.217.225 |            557
                                                                  Acquiring sstable references | 14:52:14,364 | 172.16.217.225 |            578
                                                                   Merging memtable tombstones | 14:52:14,364 | 172.16.217.225 |            632
                                                      Bloom filter allows skipping sstable 129 | 14:52:14,364 | 172.16.217.225 |            725
                                                                 Key cache hit for sstable 124 | 14:52:14,364 | 172.16.217.225 |            789
                                                   Seeking to partition beginning in data file | 14:52:14,364 | 172.16.217.225 |            792
                                                      Bloom filter allows skipping sstable 115 | 14:52:14,364 | 172.16.217.225 |            846
                                                                  Key cache hit for sstable 78 | 14:52:14,364 | 172.16.217.225 |            911
                                                   Seeking to partition beginning in data file | 14:52:14,364 | 172.16.217.225 |            913
                                                                  Key cache hit for sstable 38 | 14:52:14,364 | 172.16.217.225 |            930
                                                   Seeking to partition beginning in data file | 14:52:14,364 | 172.16.217.225 |            931
                                                    Merging data from memtables and 3 sstables | 14:52:14,364 | 172.16.217.225 |            954
                                                            Read 1 live and 0 tombstoned cells | 14:52:14,364 | 172.16.217.225 |           1208
                                                         Enqueuing response to /172.16.217.222 | 14:52:14,364 | 172.16.217.225 |           1341
                                                            Sending message to /172.16.217.222 | 14:52:14,365 | 172.16.217.225 |           2365
                                                         Message received from /172.16.217.225 | 14:52:14,366 | 172.16.217.222 |           5036
                                                      Processing response from /172.16.217.225 | 14:52:14,366 | 172.16.217.222 |           5257
                                                                              Request complete | 14:52:14,366 | 172.16.217.222 |           5671