Re: Bacula Backup Performance

No problem, been there, done that ;)


On Thu, 18 Sept 2025 at 16:17, Dave Tibbetts <[email protected]> wrote:

> 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 <[email protected]> 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
> >>
> >>
> >>
> >> _______________________________________________
> >> Bacula-users mailing list
> >> [email protected]
> >> https://lists.sourceforge.net/lists/listinfo/bacula-users
>
>

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