Listen queue overflow/error in rsync protocol data stream (code 12) at io.c(320) [sender=3

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melloa

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Folks,

For sometime I notice an error on my FN(s) that could be related with rsync.

My main FN (Only used as data storage):

Build FreeNAS-9.10-STABLE-201606270534 (dd17351)
Platform Intel(R) Core(TM) i5-4430 CPU @ 3.00GHz
Memory 32429MB
System Time Thu Jun 30 08:28:04 EDT 2016
Uptime 8:28AM up 1 day, 23:36, 0 users
Load Average 0.31, 0.24, 0.25

rsync with my back-up one (only used as back-up for the data storage):


Build FreeNAS-9.10-STABLE-201606270534 (dd17351)
Platform Intel(R) Pentium(R) CPU G3258 @ 3.20GHz
Memory 32428MB
System Time Thu Jun 30 08:48:59 EDT 2016
Uptime 8:48AM up 2 days, 6 mins, 0 users
Load Average 0.11, 0.18, 0.24

Noticed the errors below on the main FN:

Jun 30 08:00:00 mellonas rsync: rsync: safe_write failed to write 14 bytes to fd 3 [sender]: Broken pipe (32)
Jun 30 08:00:00 mellonas rsync: rsync error: error in rsync protocol data stream (code 12) at io.c(320) [sender=3.1.2]
Jun 30 08:00:00 mellonas rsync: rsync: safe_write failed to write 14 bytes to fd 3 [sender]: Broken pipe (32)
Jun 30 08:00:00 mellonas rsync: rsync error: error in rsync protocol data stream (code 12) at io.c(320) [sender=3.

[B]About the same time the back-up FN displayed:[/B]

Jun 30 08:00:00 backupnas kernel: sonewconn: pcb 0xfffff8008a860ab8: Listen queue overflow: 8 already in queue awaiting acceptance (2 occurrences)

My searches didn't provided any clues, so sorry if this is a known issue...

So my questions are:

Is this related?
Is my rsync been affected?
Is the data been affected?

Sorry for so many questions at once!

Regards,
Al
 

Spearfoot

He of the long foot
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Are you running rsync from a script? Or are you using Rsync Tasks? Either way, please show us the details of how you're using it.
 

melloa

Wizard
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May 22, 2016
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rsync tasks on main:

upload_2016-6-30_9-59-15.png


to rsync modules on back-up:

upload_2016-6-30_10-0-20.png
 

Spearfoot

He of the long foot
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It's probably a silly suggestion... but would it make sense to set up your rsync tasks so that they don't all kick off at the same time? I wonder if what you're seeing is simply network congestion.
 

melloa

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It's probably a silly suggestion... but would it make sense to set up your rsync tasks so that they don't all kick off at the same time? I wonder if what you're seeing is simply network congestion.

Not a silly suggestion and it may be the root cause. Let me make the changes and check.
 

melloa

Wizard
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Changes made and no errors in two hours. Thanks @Spearfoot for the suggestion. Will report back if anything change.
 
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