BackupPC-users

Re: [BackupPC-users] How do you monitor a backup process?

2016-08-04 14:59:03
Subject: Re: [BackupPC-users] How do you monitor a backup process?
From: martin f krafft <madduck AT madduck DOT net>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Thu, 4 Aug 2016 20:52:15 +0200
also sprach Adam Goryachev <mailinglists AT websitemanagers.com DOT au> 
[2016-08-04 16:04 +0200]:
> I've used ls -l /proc/pid/fds or strace or lsof etc... all work,
> some are better on the client rather than the backuppc server.

In fact, I found none of those useful on the server.

> I've also used tail -f XferLOG | Backuppc_zcat which does work,
> but doesn't update in real time (ie, you have to wait for a number
> of lines of log output before you see the update.....

I've tried this, but I get:

  /usr/share/backuppc/bin/BackupPC_zcat: can't uncompress stdin

This is using BackupPC 3.3.0 (Debian stable)

> Not sure of a "better" way.... Backuppc 4.0 includes a counter for
> number of files xfered though that doesn't help for BPC 3.x

The counter isn't really that useful, I think, especially not if it
doesn't have a "X of Y files" total that doesn't change (cf. rsync,
which is kinda useless, as the total keeps increasing).

The more I think about it, the more I want XferLOG
uncompressed/unbuffered, but also structured in a way so that it
starts a new line when it inspects a file, and then finishes the
line with details and the verdict (same, create, link, …)


also sprach Tony Schreiner <anthony.schreiner AT bc DOT edu> [2016-08-04 15:52 
+0200]:
> Also on the backup host, you can get the  process id of the current dump
> processes (there will be two per host during file transfer), and do
> 
> (sudo) ls -l /proc/{pid1,pid2}/fd
> 
> if a file is being written to backup it will show up in this list. But be
> aware that there are times (sometimes long) when files are not being written

What happens during those times?

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