Unable to retrieve next block transmission command

VMware specific discussions

Re: Unable to retrieve next block transmission command

Veeam Logoby SGalbincea » Wed Jan 28, 2015 9:20 pm 2 people like this post

Disabling IPv4 Offload on all of our 10Gb NICs in both physical proxy servers (SAN and LAN sides) seems to have resolved this issue for us - 30TB server backup complete!
Senior Network Engineer, VCP5-DCV, VMSP, VMTSP, NIOP
Senior Network Engineer
BEMA Information Technologies
Houston, TX
SGalbincea
Enthusiast
 
Posts: 55
Liked: 6 times
Joined: Fri May 25, 2012 2:09 pm
Location: Houston, TX
Full Name: Steve Galbincea

Re: Unable to retrieve next block transmission command

Veeam Logoby andnym » Tue Feb 03, 2015 8:42 am 1 person likes this post

I have managed to solve the issue for my problem. After requesting a FW opening in order to have the possibility to use other Veeam proxies on a different network for troubleshooting I found out that IPS in our firewall suddenly started to reject the traffic. Checkpoint IPS watches the entire communication, not just the start of the transmission. Then probably somewhere into the job the IPS found a code that was suspect to one if the IPS detections and blocked the traffic.

All my servers affected was identical (cloned from one) and that is why only those was rejected.

In my case it happened around the same time for each vm, around 28-30% into the disk.

BR
Anders
andnym
Influencer
 
Posts: 10
Liked: 2 times
Joined: Wed Jul 13, 2011 8:04 am
Full Name: Anders Nyman

[MERGED] : Backup not Working

Veeam Logoby VenoX » Wed Feb 25, 2015 7:35 am

Hello,

I have a production critical Problem - Case 00812606 - Backup of one of my Servers in the job is not working.

Since customer support seems to be overstrained, i ask the community instead:

I tried ctb reset, readd the server to the job, but nothing helps.
Error Message:
24.02.2015 20:45:11 :: Processing FILESERVER Error: Thread not finished within [1800000] milliseconds.
Failed to upload disk.
Agent failed to process method {DataTransfer.SyncDisk}.
Exception from server: Thread not finished within [1800000] milliseconds.
Unable to retrieve next block transmission command. Number of already processed blocks: [76327].
Failed to download disk.


Any ideas?

BR
VenoX
VenoX
Influencer
 
Posts: 11
Liked: 1 time
Joined: Mon Mar 12, 2012 11:29 am
Full Name: L33t rul0r

Re: Unable to retrieve next block transmission command

Veeam Logoby v.Eremin » Wed Feb 25, 2015 8:11 am

Hi,

Your post has been merged into existing discussion. While waiting for an answer from support team, it might be worth checking posts provided above for possible solutions.

Thanks.
v.Eremin
Veeam Software
 
Posts: 13291
Liked: 973 times
Joined: Fri Oct 26, 2012 3:28 pm
Full Name: Vladimir Eremin

Re: Unable to retrieve next block transmission command

Veeam Logoby Andreas Neufert » Thu Aug 06, 2015 7:23 am 1 person likes this post

Hi,

I had random job failures with the message

Code: Select all
"Error: Application is shutting down. Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}. Exception from server: Application is shutting down. Unable to retrieve next block transmission command. Number of already processed blocks: [34664]. Failed to download disk."


Thanks to support 00985273 it was fixed by updating the correct time at ESXi host.

In this case the ESXi host had a windows NTP server configured but ESXi expect NTP v4 while windows work on NTP v3.
After updating /etc/ntp.conf on the ESXi hosts
server <ip>
to
server <ip> version 3
the ESXi worked with correct time and Job run now without random failures.

Thank you Veeam Support.
Andreas Neufert
Veeam Software
 
Posts: 2201
Liked: 360 times
Joined: Wed May 04, 2011 8:36 am
Location: Germany
Full Name: @AndyandtheVMs Veeam PM

Re: Unable to retrieve next block transmission command

Veeam Logoby loelly » Wed Aug 19, 2015 7:20 am

Andreas,

that's new to me. My ESXi (5.5) hosts are all configured to poll NTP at Windows domain controllers. Time is OK, no issues.

Is this something specific to ESXi 6?

Thanks!

Maik.
loelly
Enthusiast
 
Posts: 49
Liked: 10 times
Joined: Thu Apr 17, 2014 8:25 am
Full Name: Jens Siegmann

Re: Unable to retrieve next block transmission command

Veeam Logoby Andreas Neufert » Thu Aug 20, 2015 1:31 pm

I don´t know if this is "new". I used another NTP Service before. I use a lot of nested ESXi servers and suspend them from time to time. Without NTP the ESXi host will run out of sync and backup is not possible.

In this case it was a 5.5 with latest patch level. All ESXi time diagnostic command showed a successful test with NTP. But the time never updated. After I changed it to "version 3" in the ntp.conf it worked immediatelly flawless since a month.

You can try to change the time manually (change date) (no VMs running on the ESXi host) and test if after a reboot the time will update automatically.
Andreas Neufert
Veeam Software
 
Posts: 2201
Liked: 360 times
Joined: Wed May 04, 2011 8:36 am
Location: Germany
Full Name: @AndyandtheVMs Veeam PM

Re: Unable to retrieve next block transmission command

Veeam Logoby Andreas Neufert » Thu Aug 20, 2015 1:32 pm

At least this NTP setting fixed my random problem with "Unable to retrieve next block transmission command"
Andreas Neufert
Veeam Software
 
Posts: 2201
Liked: 360 times
Joined: Wed May 04, 2011 8:36 am
Location: Germany
Full Name: @AndyandtheVMs Veeam PM

Re: Unable to retrieve next block transmission command

Veeam Logoby manasar » Sun Oct 04, 2015 1:18 pm 1 person likes this post

I have the save problem and follow to edit ntp.conf. (Before edit ntp.conf that my ntp service on esxi is ok)

It'work.Error has gone.

Thank you very much
manasar
Lurker
 
Posts: 1
Liked: 1 time
Joined: Thu Aug 06, 2015 1:35 am
Full Name: Mana Saringkanratana

Re: Unable to retrieve next block transmission command

Veeam Logoby haslund » Sun Feb 14, 2016 1:32 am

loelly wrote:Andreas,

that's new to me. My ESXi (5.5) hosts are all configured to poll NTP at Windows domain controllers. Time is OK, no issues.

Is this something specific to ESXi 6?

Thanks!

Maik.


Nothing new, please see VMware KB 1035833
Rasmus Haslund
Principal Technologist, Global Education Services @ Veeam Software
Veeam Certified Architect #1 | Veeam Certified Trainer #4 [v7,v8,v9] | Veeam Certified Trainer Mentor #1
Twitter: @haslund
Blog: www.perfectcloud.org
haslund
Veeam Software
 
Posts: 270
Liked: 50 times
Joined: Thu Feb 16, 2012 7:35 am
Location: Denmark
Full Name: Rasmus Haslund

Re: Unable to retrieve next block transmission command

Veeam Logoby schmad27 » Fri Dec 30, 2016 1:45 pm

I have the same error and it only happens on the same server out of 10 servers. It's over a vpn WAN connection and the connection is stable, so I don't know why Veeam is reporting that it is not. We have users at that site who connect to our terminal servers and they never complain about network performance.
schmad27
Lurker
 
Posts: 2
Liked: never
Joined: Fri Dec 30, 2016 1:38 pm
Full Name: David P Schmalzer

Re: Unable to retrieve next block transmission command

Veeam Logoby Andreas Neufert » Fri Dec 30, 2016 5:36 pm

Please check if B&R, Proxy and Repositiry Server have same time and timezone setting, just for a test.
Andreas Neufert
Veeam Software
 
Posts: 2201
Liked: 360 times
Joined: Wed May 04, 2011 8:36 am
Location: Germany
Full Name: @AndyandtheVMs Veeam PM

Re: Unable to retrieve next block transmission command

Veeam Logoby schmad27 » Tue Jan 03, 2017 2:46 pm

Yes, they both have the same time zone settings. Still the same 1 server out of 10 servers is failing. Here is the full error:

Processing MyServerName Error: Unstable connection: unable to transmit data. Failed to upload disk. Agent failed to process method {DataTransfer.SyncDisk}. Exception from server: read: End of file Unable to retrieve next block transmission command. Number of already processed blocks: [11377]. Failed to download disk.
schmad27
Lurker
 
Posts: 2
Liked: never
Joined: Fri Dec 30, 2016 1:38 pm
Full Name: David P Schmalzer

Re: Unable to retrieve next block transmission command

Veeam Logoby foggy » Tue Jan 03, 2017 3:05 pm

David, please contact technical support for logs investigation.
foggy
Veeam Software
 
Posts: 14752
Liked: 1083 times
Joined: Mon Jul 11, 2011 10:22 am
Full Name: Alexander Fogelson

Previous

Return to VMware vSphere



Who is online

Users browsing this forum: No registered users and 15 guests