Hot standby server does not start

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От Michal Glowacki
Тема Hot standby server does not start
Дата
Msg-id 4CA2F025.3010508@gmail.com
обсуждение исходный текст
Ответы Re: Hot standby server does not start  (Fujii Masao <masao.fujii@gmail.com>)
Список pgsql-admin
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hi,

I wanted to take new feature of postgres 9 into action - hot standby. However for some days I am still struggling with starting hot standby server. I have set up everything as mentioned in Postgres Tutorial, on master and standby. All the time I get:


2010-09-27 15:56:22 CEST LOG:  database system was shut down at 2010-09-27 15:56:20 CEST
2010-09-27 15:56:22 CEST LOG:  entering standby mode
2010-09-27 15:56:22 CEST WARNING:  WAL was generated with wal_level=minimal, data may be missing
2010-09-27 15:56:22 CEST HINT:  This happens if you temporarily set wal_level=minimal without taking a new base backup.
2010-09-27 15:56:22 CEST FATAL:  hot standby is not possible because wal_level was not set to "hot_standby" on the master server
2010-09-27 15:56:22 CEST HINT:  Either set wal_level to "hot_standby" on the master, or turn off hot_standby here.
2010-09-27 15:56:22 CEST LOG:  startup process (PID 5100) exited with exit code 1
2010-09-27 15:56:22 CEST LOG:  aborting startup due to startup process failure


I tried it even on 'empty' server, with only maintanance 'postgres' database. Here's some info how I do it:

I try to do it on two machines, my computer and local server. My system is Windows 7 64bit, standby is XP professional sp2 64bit. Both machines run postgres 9.0.0. I tried dump, dump_all, pgadmin III's backup and restore - nothing works.

recovery.conf on standby is:
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standby_mode = 'on'
primary_conninfo = 'host=192.168.1.40 port=5433 user=postgres password=pass'
restore_command = 'copy "d:\\postgresql\\9.0\\archive\\%f" "%p"'
trigger_file = 'standby.stop'


pga_hba.conf on master is:
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# IPv4 local connections:
host    all             all             127.0.0.1/32            md5
host    replication	postgres             192.168.1.108/32          trust


and postgresql.conf on master is:
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# - Settings -

wal_level = hot_standby			# minimal, archive, or hot_standby
#fsync = on				# turns forced synchronization on or off
#synchronous_commit = on		# immediate fsync at commit
#wal_sync_method = fsync		# the default is the first option 				# supported by the operating system:				#   open_datasync				#   fdatasync				#   fsync				#   fsync_writethrough				#   open_sync
#full_page_writes = on			# recover from partial page writes
#wal_buffers = 64kB			# min 32kB				# (change requires restart)
#wal_writer_delay = 200ms		# 1-10000 milliseconds

#commit_delay = 0			# range 0-100000, in microseconds
#commit_siblings = 5			# range 1-1000

# - Checkpoints -

#checkpoint_segments = 3		# in logfile segments, min 1, 16MB each
#checkpoint_timeout = 5min		# range 30s-1h
#checkpoint_completion_target = 0.5	# checkpoint target duration, 0.0 - 1.0
#checkpoint_warning = 30s		# 0 disables

# - Archiving -

archive_mode = on		# allows archiving to be done			# (change requires restart) #d:\\postgresql\\9.0\\archive\\
archive_command = 'copy "%p" "d:\\postgresql\\9.0\\%f"'		# command to use to archive a logfile segment
#archive_timeout = 0		# force a logfile segment switch after this			# number of seconds; 0 disables

# - Streaming Replication -

max_wal_senders = 10		# max number of walsender processes
#wal_sender_delay = 200ms	# walsender cycle time, 1-10000 milliseconds
wal_keep_segments = 32		# in logfile segments, 16MB each; 0 disables
#vacuum_defer_cleanup_age = 0	# number of xacts by which cleanup is delayed

# - Standby Servers -

hot_standby = on			# "on" allows queries during recovery
max_standby_archive_delay = 30s		# max delay before canceling queries				# when reading WAL from archive;				# -1 allows indefinite delay
max_standby_streaming_delay = 30s	# max delay before canceling queries				# when reading streaming WAL;				# -1 allows indefinite delay


What more can I do?

Regards,
Michal

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