slaveof replication: slave keys less than master

[liu kui]

hello,

        I'm using master/slave replication.

        After slaveof operation, slave keys are less than master.  This is always the case.

Here is the log of slave:

[16288] 16 Jun 15:40:47.768 * SLAVE OF 11.230.138.182:6380 enabled (user request)

[16288] 16 Jun 15:40:47.811 * Connecting to MASTER 11.230.138.182:6380

[16288] 16 Jun 15:40:47.811 * MASTER <-> SLAVE sync started

[16288] 16 Jun 15:40:47.812 * Non blocking connect for SYNC fired the event.

[16288] 16 Jun 15:40:47.812 * Master replied to PING, replication can continue...

[16288] 16 Jun 15:40:47.813 * Partial resynchronization not possible (no cached master)

[16288] 16 Jun 15:40:47.814 * Full resync from master: 3d532c36bf9264bc89300296208b953c792451eb:6462161514

[16288] 16 Jun 15:41:02.144 * MASTER <-> SLAVE sync: receiving 424645763 bytes from master

[16288] 16 Jun 15:41:10.962 * MASTER <-> SLAVE sync: Flushing old data

[16288] 16 Jun 15:41:10.963 * MASTER <-> SLAVE sync: Loading DB in memory

[16288] 16 Jun 15:41:35.930 * MASTER <-> SLAVE sync: Finished with success

[16288] 16 Jun 15:41:35.962 * Background append only file rewriting started by pid 16502

[16502] 16 Jun 15:42:26.851 * SYNC append only file rewrite performed

[16502] 16 Jun 15:42:26.881 * AOF rewrite: 486 MB of memory used by copy-on-write

[16288] 16 Jun 15:42:27.038 * Background AOF rewrite terminated with success

[16288] 16 Jun 15:42:27.038 * Parent diff successfully flushed to the rewritten AOF (20077 bytes)

[16288] 16 Jun 15:42:27.038 * Background AOF rewrite finished successfully

         Here is the   ` info replication`:

        11.230.138.182:6380> info replication

# Replication

role:master

connected_slaves:1

slave0:ip=10.178.89.159,port=6380,state=online,offset=6474032863,lag=0

master_repl_offset:6474035801

repl_backlog_active:1

repl_backlog_size:1048576

repl_backlog_first_byte_offset:6472987226

repl_backlog_histlen:1048576

       Here is the `info replication` of slave:

# Replication

role:slave

master_host:11.230.138.182

master_port:6380

master_link_status:up

master_last_io_seconds_ago:0

master_sync_in_progress:0

slave_repl_offset:6474636038

slave_priority:100

slave_read_only:1

connected_slaves:0

master_repl_offset:0

repl_backlog_active:0

repl_backlog_size:1048576

repl_backlog_first_byte_offset:0

repl_backlog_histlen:0