我正在学习postgreSQL（9.0.1），尤其是pg_rman（1.1.2）......
我所做的是.....
每一件工作都很好但是...... 当我启动postgresql服务器进程时....某些消息就像：
cp: cannot stat `/postDATA/ARCHIVE_LOG/00000007000000000000000E': No such file or directory
无论如何，如果一切正常，我在完成备份之前创建的t1，t2表必须在那里，我是对的吗？如果是这样，我的脚本就在下面......
localhost.localdomain:[/postDATA/RBACKUP]psql -d user1db -U user1
psql (9.0.1)
Type "help" for help.
user1db=> create table t1(col1 char(1));
CREATE TABLE
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> insert into t1 values('1');
INSERT 0 1
user1db=> create table t2(col1 char(1));
CREATE TABLE
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> insert into t2 values('1');
INSERT 0 1
user1db=> \q
localhost.localdomain:[/home/postgres]ll
total 17592
-rwxrwxr-x 1 postgres postgres 67103 Aug 10 16:24 pg_rman-1.1.2.tar.gz
drwxrwxr-x 6 postgres postgres 4096 Aug 13 17:04 postgresql-9.0.1
-rwxrwxrwx 1 postgres postgres 17898437 Aug 6 10:10 postgresql-9.0.1.tar.gz
localhost.localdomain:[/home/postgres]tar -xvzf pg_rman-1.1.2.tar.gz
pg_rman/
pg_rman/delete.c
pg_rman/pg_rman.c
pg_rman/pgut/
pg_rman/pgut/pgut.h
pg_rman/pgut/pgut-port.h
pg_rman/pgut/pgut-port.c
pg_rman/pgut/pgut.c
pg_rman/pgsql_src/
pg_rman/pgsql_src/COPYRIGHT.pgsql_src
pg_rman/pgsql_src/pg_crc.c
pg_rman/pgsql_src/pg_ctl.c
pg_rman/data/
pg_rman/data/sample_backup/
pg_rman/data/sample_backup/20090601/
pg_rman/data/sample_backup/20090601/170553/
pg_rman/data/sample_backup/20090601/170553/file_arclog.txt
pg_rman/data/sample_backup/20090601/170553/backup.ini
pg_rman/data/sample_backup/20090601/170553/srvlog/
pg_rman/data/sample_backup/20090601/170553/arclog/
pg_rman/data/sample_backup/20090601/170553/database/
pg_rman/data/sample_backup/20090601/170553/database/PG_VERSION
pg_rman/data/sample_backup/20090601/170553/file_database.txt
pg_rman/data/sample_backup/backup/
pg_rman/data/sample_backup/pg_rman.ini
pg_rman/data/sample_backup/20090531/
pg_rman/data/sample_backup/20090531/170553/
pg_rman/data/sample_backup/20090531/170553/file_arclog.txt
pg_rman/data/sample_backup/20090531/170553/backup.ini
pg_rman/data/sample_backup/20090531/170553/srvlog/
pg_rman/data/sample_backup/20090531/170553/arclog/
pg_rman/data/sample_backup/20090531/170553/database/
pg_rman/data/sample_backup/20090531/170553/database/PG_VERSION
pg_rman/data/sample_backup/20090531/170553/file_database.txt
pg_rman/data/sample_backup/timeline_history/
pg_rman/data/sample_backup/20090602/
pg_rman/data/sample_backup/20090602/170553/
pg_rman/data/sample_backup/20090602/170553/backup.ini
pg_rman/data/sample_backup/20090602/170553/srvlog/
pg_rman/data/sample_backup/20090602/170553/arclog/
pg_rman/data/sample_backup/20090602/170553/database/
pg_rman/data/sample_backup/20090603/
pg_rman/data/sample_backup/20090603/170553/
pg_rman/data/sample_backup/20090603/170553/file_arclog.txt
pg_rman/data/sample_backup/20090603/170553/backup.ini
pg_rman/data/sample_backup/20090603/170553/srvlog/
pg_rman/data/sample_backup/20090603/170553/arclog/
pg_rman/data/sample_backup/20090603/170553/database/
pg_rman/data/sample_backup/20090603/170553/file_srvlog.txt
pg_rman/data/sample_backup/20090603/170553/file_database.txt
pg_rman/show.c
pg_rman/data.c
pg_rman/init.c
pg_rman/backup.c
pg_rman/dir.c
pg_rman/xlog.c
pg_rman/parray.h
pg_rman/COPYRIGHT
pg_rman/pg_rman.h
pg_rman/sql/
pg_rman/sql/option.sql
pg_rman/sql/option.sh
pg_rman/sql/backup.sql
pg_rman/sql/init.sql
pg_rman/sql/backup_restore.sh
pg_rman/sql/show_validate.sql
pg_rman/sql/backup_restore.sql
pg_rman/Makefile
pg_rman/parray.c
pg_rman/restore.c
pg_rman/catalog.c
pg_rman/util.c
pg_rman/validate.c
pg_rman/expected/
pg_rman/expected/option.out
pg_rman/expected/backup_restore.out
pg_rman/expected/show_validate.out
pg_rman/expected/init.out
localhost.localdomain:[/home/postgres]cd pg_rman
localhost.localdomain:[/home/postgres/pg_rman]make USE_PGXS=1
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o backup.o backup.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o catalog.o catalog.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o data.o data.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o delete.o delete.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o dir.o dir.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o init.o init.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o parray.o parray.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o pg_rman.o pg_rman.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o restore.o restore.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o show.o show.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o util.o util.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o validate.o validate.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o xlog.o xlog.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o pgsql_src/pg_ctl.o pgsql_src/pg_ctl.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o pgsql_src/pg_crc.o pgsql_src/pg_crc.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o pgut/pgut.o pgut/pgut.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv -I/usr/local/pgsql/include -I. -I. -I/usr/local/pgsql/include/server -I/usr/local/pgsql/include/internal -D_GNU_SOURCE -I/usr/include/libxml2 -c -o pgut/pgut-port.o pgut/pgut-port.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv backup.o catalog.o data.o delete.o dir.o init.o parray.o pg_rman.o restore.o show.o util.o validate.o xlog.o pgsql_src/pg_ctl.o pgsql_src/pg_crc.o pgut/pgut.o pgut/pgut-port.o -L/usr/local/pgsql/lib -lpgport -L/usr/local/pgsql/lib -lpq -L/usr/local/pgsql/lib -L/usr/lib -Wl,-rpath,'/usr/local/pgsql/lib',--enable-new-dtags -lpgport -lxml2 -lpam -lz -lreadline -ltermcap -lcrypt -ldl -lm -o pg_rman
localhost.localdomain:[/home/postgres/pg_rman]make USE_PGXS=1 install
/bin/mkdir -p '/usr/local/pgsql/bin'
/bin/sh /usr/local/pgsql/lib/pgxs/src/makefiles/../../config/install-sh -c pg_rman '/usr/local/pgsql/bin
localhost.localdomain:[/home/postgres/pg_rman]egrep -i "wal_level|archive_mode|archive_command" $PGDATA/postgresql.conf
wal_level = archive # minimal, archive, or hot_standby
archive_mode = on # allows archiving to be done
archive_command = 'cp -i %p /postDATA/ARCHIVE_LOG/%f' # command to use to archive a logfile segment
localhost.localdomain:[/home/postgres/pg_rman]pg_rman init -B /postDATA/RBACKUP
INFO: ARCLOG_PATH is set to '/postDATA/ARCHIVE_LOG'
INFO: SRVLOG_PATH is set to '/postDATA/DATA/pg_log'
localhost.localdomain:[/home/postgres/pg_rman]cd /postDATA/RBACKUP
localhost.localdomain:[/postDATA/RBACKUP]ll
total 24
drwx------ 4 postgres postgres 4096 Aug 14 09:43 backup
-rw-rw-r-- 1 postgres postgres 73 Aug 14 09:43 pg_rman.ini
drwx------ 2 postgres postgres 4096 Aug 14 09:43 timeline_history
localhost.localdomain:[/postDATA/RBACKUP]vi pg_rman.ini
ARCLOG_PATH='/postDATA/ARCHIVE_LOG'
SRVLOG_PATH='/postDATA/DATA/pg_log'
~
~
~
~
"pg_rman.ini" 3L, 73C
localhost.localdomain:[/postDATA/RBACKUP]pg_rman -B /postDATA/RBACKUP show
============================================================================
Start Time Total Data WAL Log Backup Status
============================================================================
localhost.localdomain:[/postDATA/RBACKUP]pg_rman backup -B /postDATA/RBACKUP -b f
INFO: database backup start
NOTICE: pg_stop_backup complete, all required WAL segments have been archived
localhost.localdomain:[/postDATA/RBACKUP]pg_rman -B /postDATA/RBACKUP show
============================================================================
Start Time Total Data WAL Log Backup Status
============================================================================
2012-08-14 09:46:37 4m 26MB ---- 318MB ---- 344MB DONE
localhost.localdomain:[/postDATA/RBACKUP]pg_rman -B /postDATA/RBACKUP validate
INFO: validate: 2012-08-14 09:46:37
localhost.localdomain:[/postDATA/RBACKUP]pg_rman -B /postDATA/RBACKUP show
============================================================================
Start Time Total Data WAL Log Backup Status
============================================================================
2012-08-14 09:46:37 4m 26MB ---- 318MB ---- 344MB OK
localhost.localdomain:[/postDATA/RBACKUP]psql -d user1db -U user1
psql (9.0.1)
Type "help" for help.
user1db=> \d
List of relations
Schema | Name | Type | Owner
--------+------+-------+-------
public | t1 | table | user1
public | t2 | table | user1
user1db=> drop table t1;
DROP TABLE
user1db=> drop table t2;
DROP TABLE
user1db=> \d
No relations found.
user1db=> \q
localhost.localdomain:[/postDATA/RBACKUP]pg_ctl stop -m fast
LOG: received fast shutdown request
LOG: aborting any active transactions
waiting for server to shut down....LOG: autovacuum launcher shutting down
LOG: shutting down
LOG: database system is shut down
done
server stopped
localhost.localdomain:[/postDATA/RBACKUP]pg_rman restore -B /postDATA/RBACKUP
INFO: validate: 2012-08-14 09:46:37
INFO: restore complete. Recovery starts automatically when the PostgreSQL server is started.
localhost.localdomain:[/postDATA/RBACKUP]pg_ctl start
server starting
localhost.localdomain:[/postDATA/RBACKUP]LOG: database system was interrupted; last known up at 2012-08-14 09:46:57 KST
LOG: restored log file "00000007.history" from archive
LOG: restored log file "00000007.history" from archive
LOG: starting archive recovery
LOG: restored log file "00000007000000000000000C" from archive
LOG: redo starts at 0/C000070
LOG: consistent recovery state reached at 0/D000000
LOG: restored log file "00000007000000000000000D" from archive
cp: cannot stat `/postDATA/ARCHIVE_LOG/00000007000000000000000E': No such file or directory
LOG: record with zero length at 0/E000070
LOG: redo done at 0/E000020
LOG: last completed transaction was at log time 2012-08-14 09:59:05.321848+09
cp: cannot stat `/postDATA/ARCHIVE_LOG/00000008.history': No such file or directory
LOG: selected new timeline ID: 8
LOG: restored log file "00000007.history" from archive
LOG: archive recovery complete
LOG: autovacuum launcher started
LOG: database system is ready to accept connections
localhost.localdomain:[/postDATA/RBACKUP]psql -d user1db -U user1
psql (9.0.1)
Type "help" for help.
user1db=> \d
No relations found.
如何通过备份???
恢复我的表（t1，t2）答案 0 :(得分：1)
此处的问题是您完全恢复备份。这意味着您实际上还原到删除表之后的点。
你可以从以下几行看到：
INFO: validate: 2012-08-14 09:46:37
和
LOG: last completed transaction was at log time 2012-08-14 09:59:05.321848+09
这可能是因为您仍然在目录中保留了存档日志。
您需要做的是在执行数据库的恢复/启动之前删除/postDATA/ARCHIVE_LOG/中的所有内容（这里我假设pg_rman将恢复所需的所有存档日志存档到备份目录中），或者您需要修改recovery.conf文件并添加一个时间戳，直到您想要恢复的时间点（应该是删除之前的时间），并添加参数recovery_target_time。
pg_rman应该支持在指定时自动添加，但我不确定它是否按预期工作。