OMG. I'm an idiot. Thank you , Dragan! How did I miss that???
It IS a network issue.
On 9/18/25 9:54 AM, Dragan Milivojević wrote:
If your network speed is 95 M BITS and bacula transfer rate is 11 M BYTES ...
On Thu, 18 Sept 2025 at 15:24, Dave Tibbetts <dave...@gmail.com> wrote:
Another slow backup issue and I'm hoping someone can help.
I'm running Bacula 13.04 on Ubuntu 25.04.
It's been running fine for several years over many Bacula and OS upgrades.
Suddenly on 3 August 2025, my backup speed was cut by about half. I have a
desktop that typically would run about 25 to 26 MB/s and is now running at
11.5. This is running via ethernet.
I'm seeing the same with another machine that's also on ethernet and a wireless
laptop.
I'm using virtual tapes in the filestor, and the bacula director and storage
are on the same machine. Again, small setup and been very reliable.
SpoolAttributes is set on for all jobs.
I ran iperf from my desktop to my server and got solid numbers:
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 12.4 MBytes 104 Mbits/sec 0 255 KBytes
[ 5] 1.00-2.00 sec 11.4 MBytes 95.5 Mbits/sec 0 255 KBytes
[ 5] 2.00-3.00 sec 11.0 MBytes 92.3 Mbits/sec 0 255 KBytes
[ 5] 3.00-4.00 sec 11.5 MBytes 96.4 Mbits/sec 0 255 KBytes
[ 5] 4.00-5.00 sec 10.9 MBytes 91.2 Mbits/sec 0 255 KBytes
[ 5] 5.00-6.00 sec 11.5 MBytes 96.5 Mbits/sec 0 255 KBytes
[ 5] 6.00-7.00 sec 10.9 MBytes 91.2 Mbits/sec 0 255 KBytes
[ 5] 7.00-8.00 sec 11.5 MBytes 96.5 Mbits/sec 0 255 KBytes
[ 5] 8.00-9.00 sec 11.4 MBytes 95.4 Mbits/sec 0 255 KBytes
[ 5] 9.00-10.00 sec 11.0 MBytes 92.2 Mbits/sec 0 255 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 113 MBytes 95.1 Mbits/sec 0 sender
[ 5] 0.00-10.02 sec 112 MBytes 94.1 Mbits/sec receiver
I tried using ethtool to tweak the NIC's -
ethtool -K eno1 tso off gso off gro off
But that didn't help.
I went back through the Bacula archives and tried many, many different things -
none of which helped. I finally decided to just delete the rebuild the
Postgresql database and delete all the virtual tapes.
So I brought everything back up and started a backup on a brand new catalog.
Same throughput 11.5 MB/s
Bugs-Bunny-dir JobId 1: End auto prune.
Bugs-Bunny-dir JobId 1: No Files found to prune.
Bugs-Bunny-dir JobId 1: Begin pruning Files.
Bugs-Bunny-dir JobId 1: No Jobs found to prune.
Bugs-Bunny-dir JobId 1: Begin pruning Jobs older than 1 month 16 days .
Bugs-Bunny-dir JobId 1: Bacula Enterprise Bugs-Bunny-dir 13.0.4 (12Feb24):
Build OS: x86_64-pc-linux-gnu-bacula-enterprise ubuntu 22.04
JobId: 1
Job: Backup_Bullwinkle.2025-09-17_15.58.07_17
Backup Level: Full (upgraded from Incremental)
Client: "Bullwinkle-fd" 15.0.3 (25Mar25)
x86_64-redhat-linux-gnu,redhat,;
FileSet: "Bullwinkle Set" 2025-09-17 15:58:07
Pool: "File" (From Command input)
Catalog: "MyCatalog" (From Client resource)
Storage: "Filestor" (From Command input)
Scheduled time: 17-Sep-2025 15:58:07
Start time: 17-Sep-2025 15:58:09
End time: 18-Sep-2025 06:48:23
Elapsed time: 14 hours 50 mins 14 secs
Priority: 10
FD Files Written: 145,410
SD Files Written: 145,410
FD Bytes Written: 618,967,362,190 (618.9 GB)
SD Bytes Written: 618,992,689,163 (618.9 GB)
Rate: 11588.1 KB/s
Software Compression: 2.5% 1.0:1
Comm Line Compression: 5.2% 1.1:1
Snapshot/VSS: no
Encryption: no
Accurate: no
Volume name(s):
Oviedo0001|Oviedo0002|Oviedo0003|Oviedo0004|Oviedo0005|Oviedo0006|Oviedo0007|Oviedo0008|Oviedo0009|Oviedo0010|Oviedo0011|Oviedo0012|Oviedo0013|Oviedo0014|Oviedo0015|Oviedo0016|Oviedo0017|Oviedo0018|Oviedo0019|Oviedo0020|Oviedo0021|Oviedo0022|Oviedo0023|Oviedo0024|Oviedo0025|Oviedo0026|Oviedo0027|Oviedo0028|Oviedo0029|Oviedo0030|Oviedo0031|Oviedo0032|Oviedo0033|Oviedo0034|Oviedo0035|Oviedo0036|Oviedo0037|Oviedo0038|Oviedo0039|
Volume Session Id: 1
Volume Session Time: 1758138994
Last Volume Bytes: 7,428,533,207 (7.428 GB)
Non-fatal FD errors: 0
SD Errors: 0
FD termination status: OK
SD termination status: OK
Termination: Backup OK
Bugs-Bunny-sd JobId 1: Sending spooled attrs to the Director. Despooling
40,737,115 bytes ...
Bugs-Bunny-sd JobId 1: Elapsed time=14:49:57, Transfer rate=11.59 M Bytes/second
Is it something crazy like my FD on the desktop is 15.0.3 and the server is
running 13.04?
I'm just totally out of ideas. What am I missing?
Thanks,
Dave
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