I'm setting up a Bacula installation for a set of servers, using debian
buster package (9.4.2-2+deb10u1) for director and storage daemons.
All works as expected until we use file daemon versions 7+, but some very
old servers that have bacula 5.0 or 5.2 does not work.
Communication works as expected, backup start but stalls after some Kbytes,
for example:
*status client=merlot-fd
Connecting to Client merlot-fd at merlot.ps.lnf.it:9102
merlot-fd Version: 5.2.6 (21 February 2012) x86_64-pc-linux-gnu debian 7.0
Daemon started 22-giu-22 15:53. Jobs: run=0 running=0.
Heap: heap=724,992 smbytes=176,337 max_bytes=176,484 bufs=116 max_bufs=117
Sizeof: boffset_t=8 size_t=8 debug=0 trace=0
Running Jobs:
JobId 56 Job Merlot.2022-06-22_15.56.40_19 is running.
Full Backup Job started: 22-giu-22 15:56
Files=3 Bytes=132,602 Bytes/sec=185 Errors=0
Files Examined=3
Processing file: /var/backups/aptitude.pkgstates.0
SDReadSeqNo=5 fd=5
Director connected at: 22-giu-22 16:08
====
I've checked communication between dir, sd and fd with wireshark, and i've
not found troubles (eg, no filtered packet, retransmission, ...) that feels
me of ''network troubles'' (my first think).
I've also tried to enable spooling (not needed: media are disks), and if i
enable spooling i can see fd send all the spool chunk to sd, then when the
sd start to write to media, backup stall and after some timeout stop.
It's feel to me as some 'metadata' trouble, for that i'm asking of
compatibility between these bacula versions.
But hint on how troubleshoot this carefully are welcomed!
Thanks.
--
...linux è molto educativo e oltre che un sistema operativo potrebbe essere
considerato uno stile di vita. Infatti ti insegna a ponderare bene i passi
prima di compierli, perché, come nella vita, non c'è un tasto di ``undo'' .
(Stefania Pasquon)
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