当我尝试在我的 devel 数据库节点（该节点的 RAM、CPU ......比我的生产服务器少）上恢复一个大型数据库（自定义格式几乎 32Go）时，我遇到了一个小问题。
我的数据库转储是使用类似于以下的命令生成的：
pg_dump -F custom -b myDB -Z 9 > /backup/myDB-`date +%y%m%d`.pg91
当我恢复它时，我使用了以下命令：
pg_restore -F custom -j 5 -d myDB /backup/myDB-20130331.pg91
但是在这里，每次还原命令失败时都会出现如下错误：
pg_restore: [archiver (db)] error returned by PQputCopyData: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
pg_restore: [archiver] worker process failed: exit code 1
pg_restore: [archiver (db)] error returned by PQputCopyData: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
pg_restore: [archiver (db)] error returned by PQputCopyData: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
pg_restore: [archiver (db)] error returned by PQputCopyData: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
当我检查我的 postgresql 日志时，我可以读到：
HINT: In a moment you should be able to reconnect to the database and repeat your command.
LOG: all server processes terminated; reinitializing
LOG: database system was interrupted; last known up at 2013-04-02 11:41:48 UTC
LOG: database system was not properly shut down; automatic recovery in progress
LOG: redo starts at 86/26F302B0
LOG: unexpected pageaddr 85/E3F52000 in log file 134, segment 38, offset 16064512
LOG: redo done at 86/26F51FC0
LOG: last completed transaction was at log time 2013-04-02 11:50:47.663599+00
LOG: database system is ready to accept connections
LOG: autovacuum launcher started
很奇怪，我的 postgresql 服务器仅仅因为我的恢复而“重新启动”。我尝试尽量减少工作数量（-j 5选项），但仍然遇到同样的问题。但是，在具有更好规格的节点上，我可以毫无问题地恢复此数据库。我不确定，但也许我的索引的更新（其中一个真的太大）可能是理解这个问题的线索？
所以我有一些问题：有没有更好的方法来恢复非常大的数据库？我错过了 pg_restore 命令中的某些内容吗？可能是我的开发服务器设置太低了？
任何线索将不胜感激。预先感谢。
env：PostgreSQL 9.1（通过 Debian 软件包安装）