backup-push error

[da...@academia.edu]

I get a hard-to-interpret error trying out backup-push:

n1 ~ $ sudo su postgres -c 'envdir /etc/wal-e.d/env wal-e backup-push /mnt/datastore/pgsql/data'

wal_e.operator.backup INFO     MSG: start upload postgres version metadata

        DETAIL: Uploading to s3://my-bucket/my-dir/basebackups_005/base_000000010000002B0000002B_00000032/extended_version.txt.

        STRUCTURED: time=2014-09-19T23:40:56.485503-00 pid=16585

wal_e.operator.backup INFO     MSG: postgres version metadata upload complete

        STRUCTURED: time=2014-09-19T23:40:56.547282-00 pid=16585

wal_e.operator.backup WARNING  MSG: blocking on sending WAL segments

        DETAIL: The backup was not completed successfully, but we have to wait anyway.  See README: TODO about pg_cancel_backup

        STRUCTURED: time=2014-09-19T23:40:56.549380-00 pid=16585

NOTICE:  pg_stop_backup complete, all required WAL segments have been archived

wal_e.main   CRITICAL MSG: An unprocessed exception has avoided all error handling

        DETAIL: Traceback (most recent call last):

          File "/usr/local/lib/python2.7/dist-packages/wal_e/cmd.py", line 543, in main

            pool_size=args.pool_size)

          File "/usr/local/lib/python2.7/dist-packages/wal_e/operator/backup.py", line 194, in database_backup

            **kwargs)

          File "/usr/local/lib/python2.7/dist-packages/wal_e/operator/backup.py", line 410, in _upload_pg_cluster_dir

            for tpart in parts:

          File "/usr/local/lib/python2.7/dist-packages/wal_e/tar_partition.py", line 391, in _segmentation_guts

            if et_info.tarinfo.size > max_partition_size:

        AttributeError: 'NoneType' object has no attribute 'size'

        

        STRUCTURED: time=2014-09-19T23:40:59.666867-00 pid=16585

environment:

n1 ~ $ wal-e version

0.7.2

n1 ~ $ python --version

Python 2.7.3

n1 ~ $ lsb_release -a

No LSB modules are available.

Distributor ID: Ubuntu

Description: Ubuntu 12.04 LTS

Release: 12.04

Codename: precise

Anyone have an idea what might be happening?