hgdb流复制备库提升为主库

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[highgo@hg data]$ pg_controldata
pg_control version number: 942
Catalog version number: 201409291
Database system identifier: 6407613912621653765
Database cluster state: in archive recovery **************************************
pg_control last modified: Fri 19 May 2017 11:37:40 AM CST
Latest checkpoint location: 0/27000028
Prior checkpoint location: 0/27000028
Latest checkpoint's REDO location: 0/27000028
Latest checkpoint's REDO WAL file: 000000010000000000000027
Latest checkpoint's TimeLineID: 1
Latest checkpoint's PrevTimeLineID: 1
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID: 0/1854
Latest checkpoint's NextOID: 16410
Latest checkpoint's NextMultiXactId: 1
Latest checkpoint's NextMultiOffset: 0
Latest checkpoint's oldestXID: 1802
Latest checkpoint's oldestXID's DB: 1
Latest checkpoint's oldestActiveXID: 0
Latest checkpoint's oldestMultiXid: 1
Latest checkpoint's oldestMulti's DB: 1
Time of latest checkpoint: Fri 19 May 2017 11:37:15 AM CST
Fake LSN counter for unlogged rels: 0/1
Minimum recovery ending location: 0/27000228
Min recovery ending loc's timeline: 1
Backup start location: 0/0
Backup end location: 0/0
End-of-backup record required: no
Current wal_level setting: hot_standby
Current wal_log_hints setting: off
Current max_connections setting: 200
Current max_worker_processes setting: 8
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
Size of a large-object chunk: 2048
Date/time type storage: 64-bit integers
Float4 argument passing: by value
Float8 argument passing: by value
Data page checksum version: 0

[highgo@hg data]$ pg_ctl promote ******************************************************
server promoting

[highgo@hg data]$ pg_controldata
pg_control version number: 942
Catalog version number: 201409291
Database system identifier: 6407613912621653765
Database cluster state: in production ************************************************************
pg_control last modified: Fri 19 May 2017 11:44:56 AM CST
Latest checkpoint location: 0/280000F8
Prior checkpoint location: 0/28000028
Latest checkpoint's REDO location: 0/280000C0
Latest checkpoint's REDO WAL file: 000000020000000000000028
Latest checkpoint's TimeLineID: 2
Latest checkpoint's PrevTimeLineID: 2
Latest checkpoint's full_page_writes: on
Latest checkpoint's NextXID: 0/1855
Latest checkpoint's NextOID: 16410
Latest checkpoint's NextMultiXactId: 1
Latest checkpoint's NextMultiOffset: 0
Latest checkpoint's oldestXID: 1802
Latest checkpoint's oldestXID's DB: 1
Latest checkpoint's oldestActiveXID: 1855
Latest checkpoint's oldestMultiXid: 1
Latest checkpoint's oldestMulti's DB: 1
Time of latest checkpoint: Fri 19 May 2017 11:44:56 AM CST
Fake LSN counter for unlogged rels: 0/1
Minimum recovery ending location: 0/0
Min recovery ending loc's timeline: 0
Backup start location: 0/0
Backup end location: 0/0
End-of-backup record required: no
Current wal_level setting: hot_standby
Current wal_log_hints setting: off
Current max_connections setting: 200
Current max_worker_processes setting: 8
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
Size of a large-object chunk: 2048
Date/time type storage: 64-bit integers
Float4 argument passing: by value
Float8 argument passing: by value
Data page checksum version: 0
[highgo@hg data]$

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