Dear list,
I use bacula since one year and found to be an excellent backup
solution, thank you for it. We currently backup about 120 client using
it and plan to migrate to other backups as well.
The storage backends are two storages (so no tape are used) both from
Transtec, in 4 and 8 TB size, sharing a common lvm, formatted using xfs
(not an ideal solution, I know, but had legacy tasks). The devices are
working properly at a very low usage (iostat shows up to 15%). In the
past, MySQL db (MyISAM backend, inno is completely disabled) was located
on a filesystem formatted on the built-in CCISS hardware array, but the
IO was slow in some cases so I moved it to the storages. The used
SCSI-controller:
0000:06:01.0 SCSI storage controller: LSI Logic / Symbios Logic 53c1030
PCI-X Fusion-MPT Dual Ultra320 SCSI (rev 07)
NENO(~)$ cat /etc/SuSE-release
SUSE LINUX Enterprise Server 9 (x86_64)
VERSION = 9
PATCHLEVEL = 3
NENO(~)$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.20GHz
stepping : 1
cpu MHz : 3200.243
cache size : 1024 KB
[...]
only one CPU. The machine is a HP DL380 G4 anyway.
I had some minor problems using the software, these originated from
my ignorance I mean, but for now this problem seems to be something
different. Bacula-web says:
Total clients: 119 Total bytes stored: 4.53 TB
Total files: 5591153 Database size: 3.61 GB
The only problem is that the machine that runs bacula-dir keeps having
OOM events (out of memory); currently I see these lines is top:
4498 root 16 0 1963m 1.5g 1572 S 0.0 49.5 97:10.62 bacula-dir
20515 mysql 16 0 292m 277m 3688 S 0.0 9.2 93:45.44 mysqld
28746 root 16 0 128m 16m 1356 S 1.0 0.5 112:26.29 bacula-sd
while the normal memory usage of -dir is around 300MB, -sd used to eat
100. MySQL is constantly using 300. The machine:
Linux neno 2.6.16 #2 SMP Wed Mar 29 08:13:36 CEST 2006 x86_64 x86_64
x86_64 GNU/Linux
NENO(~)$ free
total used free shared buffers
cached
Mem: 3092292 3070944 21348 0 5940
990736
-/+ buffers/cache: 2074268 1018024
Swap: 6197568 16 6197552
NENO(~)$ rpm -qa | grep bacula
bacula-mysql-2.0.3-1
bacula-mtx-2.0.3-1
bacula-updatedb-2.0.3-1
(I used bacula 1.38.10 until the last week but upgraded to give the new
version a try)
Here a dmesg snippet:
Call Trace: <ffffffff801496de>{out_of_memory+60}
<ffffffff8014b766>{__alloc_pages+524}
<ffffffff80147ca3>{generic_file_buffered_write+440}
<ffffffff803111e0>{tcp_rcv_established+1821}
<ffffffff8012d9ce>{current_fs_time+77}
<ffffffff80183175>{__mark_inode_dirty+230}
<ffffffff802404f1>{__up_write+20}
<ffffffff80227bf0>{xfs_write+1695}
<ffffffff802e2708>{do_sock_read+154}
<ffffffff802e3bad>{sock_aio_read+79}
<ffffffff801471bc>{filemap_nopage+379}
<ffffffff802242fd>{linvfs_aio_write+103}
<ffffffff80163c0a>{do_sync_write+201}
<ffffffff8013bafd>{autoremove_wake_function+0}
<ffffffff801645bf>{vfs_write+175}
<ffffffff8016471b>{sys_write+69}
<ffffffff8010a762>{system_call+126}
Mem-info:
DMA per-cpu:
cpu 0 hot: high 0, batch 1 used:0
cpu 0 cold: high 0, batch 1 used:0
DMA32 per-cpu:
cpu 0 hot: high 186, batch 31 used:34
cpu 0 cold: high 62, batch 15 used:61
Normal per-cpu: empty
HighMem per-cpu: empty
Free pages: 19304kB (0kB HighMem)
Active:377849 inactive:378436 dirty:0 writeback:0 unstable:0 free:4826
slab:4011 mapped:755464 pagetables:
3137
DMA free:12080kB min:24kB low:28kB high:36kB active:136kB inactive:124kB
present:12008kB pages_scanned:334
all_unreclaimable? yes
lowmem_reserve[]: 0 3014 3014 3014
DMA32 free:7224kB min:7012kB low:8764kB high:10516kB active:1511260kB
inactive:1513620kB present:3086512kB
pages_scanned:2750569 all_unreclaimable? no
lowmem_reserve[]: 0 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaim
able? no
lowmem_reserve[]: 0 0 0 0
HighMem free:0kB min:128kB low:128kB high:128kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_un
reclaimable? no
lowmem_reserve[]: 0 0 0 0
DMA: 0*4kB 0*8kB 1*16kB 1*32kB 2*64kB 1*128kB 2*256kB 0*512kB 1*1024kB
1*2048kB 2*4096kB = 12080kB
DMA32: 58*4kB 52*8kB 5*16kB 1*32kB 9*64kB 2*128kB 0*256kB 1*512kB
1*1024kB 0*2048kB 1*4096kB = 7224kB
Normal: empty
HighMem: empty
Swap cache: add 856241, delete 855934, find 1489150/1525433, race 0+0
Free swap = 0kB
Total swap = 2003272kB
Free swap: 0kB
786419 pages of RAM
13346 reserved pages
6966 pages shared
307 pages swap cached
Out of Memory: Kill process 20474 (bacula-dir) score 74606 and children.
Out of memory: Killed process 20474 (bacula-dir).
oom-killer: gfp_mask=0x201d2, order=0
I can live with the situation, only linux keeps killing applications at
arbitrary times. Any suggestions?
TIA
--tef
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys-and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Bacula-users mailing list
Bacula-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/bacula-users
