ACR,
Yes, with a large file and buffering of the log output, BackupPC_dump might
not see any output for a while.
I just pushed a change so that --timeout=$Conf{ClientTimeout} is passed to
rsync_bpc, instead of alarms based on rsync_bpc output.
Although not related to this issue, I also added --delete-excluded and
--one-file-system to $Conf{RsyncArgs}.
Craig
On Thu, Apr 27, 2017 at 3:54 AM, ACR ACR <[email protected]> wrote:
> hi Craig
>
> here some explanations:
>
> i set $Conf{ClientTimeout} to 600, 10min
>
> i try to transfer dir with one long file ~7Gb on slow link ~1MB/s
> so after 10min of transfer rsync_bpc receive ALARM and terminates
> i think there no output during file transfer, this behavior noted in doc
> but not clear, only smbclient mention
> and i think this behavior not handy and not funny, i need "true" timeout
> on io hangs
>
> why i set $Conf{ClientTimeout} to 600 ?
>
> there another problem
>
> i test network failure during file transfer, i just terminate interface
> on server (ifconfig down) and after ~5min up
> so, on client side there send error detected and tcp connection terminated
> by OS
> on server side tcp connection just hang, rsync_bpc hang and backup
> process just hang,
> it bad idea (i think) wait 72000 to start new backup session
>
> what about parameters to rsync_bpc? --timeout -z ?
>
>
>
>
> 2017-04-27 10:25 GMT+07:00 Craig Barratt <[email protected]>:
>
>> I did look at the code, and it does restart $Conf{ClientTimeout} every
>> time it sees output from rsync_bpc. Let me see if I can replicate what you
>> observed.
>>
>> I agree for rsync it would make more sense to pass that setting onto
>> rsync_bpc (if it's non-zero), and not set the timeout in BackupPC_dump.
>>
>> Craig
>>
>> On Wed, Apr 26, 2017 at 10:19 AM, ACR ACR <[email protected]> wrote:
>>
>>> From doc:
>>> Timeout in seconds when listening for the transport program's
>>> (smbclient, tar etc) stdout. If no output is received during this time,
>>> then it is assumed that something has wedged during a backup, and the
>>> backup is terminated.
>>>
>>> This is not true for rsyncd method, in my test this setting work like
>>> hard abort regardless of data activity.
>>>
>>> And here some questions:
>>>
>>> is rsync-bpc-3.0.9.6 and cygwin-rsync support "normal" rsync parameters:
>>>
>>> --timeout=TIMEOUT - timeout that work as expected on IO stale
>>> -z - compression
>>>
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>>>
>>
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>
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