BackupPC-users

[BackupPC-users] Moved BackupPC to new system, now rsync over ssh hangs

2010-10-15 08:10:52
Subject: [BackupPC-users] Moved BackupPC to new system, now rsync over ssh hangs
From: Gerald Brandt <gbr AT majentis DOT com>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Fri, 15 Oct 2010 07:08:36 -0500 (CDT)
Hi,

I recently moved a BackupPC install to a new system.  I used scp to copy over the cpool and config files, and BackupPC_TarCopy to copy over the 'pc' directory.

I've made sure all permissions are correct for the backuppc user.

I copied over the original systems ssh rsa keys, and tested.  As the backupPC user, I can ssh to any of my client systems and not be asked for a password.

If I start a backup on an SMB system, the backup works.  If I backup on an rsync over ssh system, the backup process hangs.

BackupPC's 'NewFileList' file remain empty.  The 'new' directory is not created.  On the client being backed, rsync is running:

#ps ax | grep rsync
18568 ?        S<s    0:00 /usr/bin/rsync --server --sender --numeric-ids --perms --owner --group -D --links --hard-links --times --block-size=2048 --recursive --checksum-seed=32761 . /etc/

# strace -p 18568
Process 18568 attached - interrupt to quit
select(1, [0], [], NULL, {3, 76000})    = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0})       = 0 (Timeout)
select(1, [0], [], NULL, {60, 0} <unfinished ...>
Process 18568 detached

I'm not sure why rsync is just waiting.  If I can ssh to the system and not be asked a password (as the backuppc user), then it's not that (which usually generates a 'can't read 4 bytes' error anyway).

Client: Ubuntu 8.10 32 bit
Server Ubuntu 10.04 LTS 64 bit.  BackupPC 3.1.0

I'm stumped.

Gerald

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