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试图为 postgres 设置wal-e。

遵循各种教程，我终于要对干净的 9.6 postgres 安装进行第一次备份了。

按照一些教程，最后阅读做一个初始wal-e backup-push，如下：

sudo -u postgres -i envdir /etc/wal-e.d/env wal-e backup-push /var/lib/postgresql/9.6/main

我希望该命令能够很快终止，因为它是一个空数据库。

然而，它似乎无限期地等待。显示waiting for required WAL segments to be archived

 postgres@postgres:~$ envdir /etc/wal-e.d/env wal-e backup-push /var/lib/postgresql/9.6/main
wal_e.main   INFO     MSG: starting WAL-E
        DETAIL: The subcommand is "backup-push".
        STRUCTURED: time=2017-05-26T11:45:52.138889-00 pid=10426
wal_e.operator.backup INFO     MSG: start upload postgres version metadata
        DETAIL: Uploading to s3://xxxxxx/basebackups_005/base_000000010000000000000060_00000040/extended_version.txt.
        STRUCTURED: time=2017-05-26T11:45:52.719220-00 pid=10426
wal_e.operator.backup INFO     MSG: postgres version metadata upload complete
        STRUCTURED: time=2017-05-26T11:45:52.929696-00 pid=10426
wal_e.worker.upload INFO     MSG: beginning volume compression
        DETAIL: Building volume 0.
        STRUCTURED: time=2017-05-26T11:45:53.075771-00 pid=10426
wal_e.worker.upload INFO     MSG: begin uploading a base backup volume
        DETAIL: Uploading to "s3://xxxxxx/basebackups_005/base_000000010000000000000060_00000040/tar_partitions/part_00000000.tar.lzo".
        STRUCTURED: time=2017-05-26T11:45:53.752390-00 pid=10426
wal_e.worker.upload INFO     MSG: finish uploading a base backup volume
        DETAIL: Uploading to "s3://xxxxxx/basebackups_005/base_000000010000000000000060_00000040/tar_partitions/part_00000000.tar.lzo" complete at 9106.47KiB/s. 
        STRUCTURED: time=2017-05-26T11:45:54.327037-00 pid=10426
NOTICE:  pg_stop_backup cleanup done, waiting for required WAL segments to be archived
WARNING:  pg_stop_backup still waiting for all required WAL segments to be archived (60 seconds elapsed)
HINT:  Check that your archive_command is executing properly.  pg_stop_backup can be canceled safely, but the database backup will not be usable without all the WAL segments.
WARNING:  pg_stop_backup still waiting for all required WAL segments to be archived (120 seconds elapsed)
HINT:  Check that your archive_command is executing properly.  pg_stop_backup can be canceled safely, but the database backup will not be usable without all the WAL segments.

老实说，我在这里有点超出我的深度。Afaik，上面应该做一个初始备份，但不要等待显然不断更新的 WAL 文件。（我已经archive_mode=on在我的 postgres 配置中设置archive_command = 'envdir /etc/wal-e.d/env wal-e wal-push %p'了应该执行增量推送的设置。再次 afaik。）。

我怎样才能完成这个初始备份命令？

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