issue with postgresql S R slave

Hello

I am having a problem with all slaves...i am not sure it's a bug or my side configuration problem..

When ever i am restarting postgresql slave  (Service postgresql restart - made a script) or even just stopping and starting a postgresql slave.. it displays a a message, although slave get's started and working fine...

server starting
cp: cannot stat `/usr/local/pgsql/data/pg_xlogarch/000000010000000300000026': No such file or directory
cp: cannot stat `/usr/local/postgres/data/pg_xlogarch/000000010000000300000026': No such file or directory


May 24 20:55:34 db-slave2 postgres[25223]: [2-1] LOG:  received fast shutdown request
May 24 20:55:34 db-slave2 postgres[25223]: [3-1] LOG:  aborting any active transactions
May 24 20:55:34 db-slave2 postgres[25229]: [3-1] FATAL:  terminating walreceiver process due to administrator command
May 24 20:55:34 db-slave2 postgres[25226]: [1-1] LOG:  shutting down
May 24 20:55:35 db-slave2 postgres[25226]: [2-1] LOG:  database system is shut down


May 24 20:55:36 db-slave2 postgres[26769]: [1-1] LOG:  database system was shut down in recovery at 2011-05-24 20:55:35 IST
May 24 20:55:36 db-slave2 postgres[26769]: [2-1] LOG:  entering standby mode
May 24 20:55:36 db-slave2 postgres[26769]: [3-1] LOG:  consistent recovery state reached at 3/2628F3F0
May 24 20:55:36 db-slave2 postgres[26769]: [4-1] LOG:  redo starts at 3/2628F360
May 24 20:55:36 db-slave2 postgres[26769]: [5-1] LOG:  invalid record length at 3/2628F3F0
May 24 20:55:36 db-slave2 postgres[26768]: [1-1] LOG:  database system is ready to accept read only connections
May 24 20:55:36 db-slave2 postgres[26774]: [2-1] LOG:  streaming replication successfully connected to primary

Pl. give any solution for this.

Postgresql Ver. 9.0.3
OS: CentOS release 5.3 (Final)
Kernel: 2.6.18-128.el5xen


pg_controldata
pg_control version number:            903
Catalog version number:               201008051
Database system identifier:           5572911747953590263
Database cluster state:               in archive recovery
pg_control last modified:             Tue 24 May 2011 08:55:36 PM IST
Latest checkpoint location:           3/2628F398
Prior checkpoint location:            3/2628F398
Latest checkpoint's REDO location:    3/2628F360
Latest checkpoint's TimeLineID:       1
Latest checkpoint's NextXID:          0/1102911
Latest checkpoint's NextOID:          1346139
Latest checkpoint's NextMultiXactId:  2
Latest checkpoint's NextMultiOffset:  3
Latest checkpoint's oldestXID:        654
Latest checkpoint's oldestXID's DB:   1
Latest checkpoint's oldestActiveXID:  1102911
Time of latest checkpoint:            Tue 24 May 2011 08:53:52 PM IST
Minimum recovery ending location:     3/2628F3F0
Backup start location:                0/0
Current wal_level setting:            hot_standby
Current max_connections setting:      5000
Current max_prepared_xacts setting:   0
Current max_locks_per_xact setting:   64
Maximum data alignment:               8
Database block size:                  8192
Blocks per segment of large relation: 131072
WAL block size:                       8192
Bytes per WAL segment:                16777216
Maximum length of identifiers:        64
Maximum columns in an index:          32
Maximum size of a TOAST chunk:        1996
Date/time type storage:               64-bit integers
Float4 argument passing:              by value
Float8 argument passing:              by value

--
Manish Singh