Hello list,


we are trying to backup out mailserver with lots and lots of small files using 
backuppc.

The backup server already has 8 GB of RAM, but this seems not to be enough - 
anything we can do besides comitting more RAM to the machine?


[3167556.328609] Out of memory: Kill process 21994 (BackupPC_dump) score 604 or 
sacrifice child
[3167556.328657] Killed process 22027 (BackupPC_dump) total-vm:4150052kB, 
anon-rss:3496444kB, file-rss:464kB

It seems there are two dump processes running that eat all the available RAM:

[3167556.327965] [ pid ]   uid  tgid total_vm      rss cpu oom_adj 
oom_score_adj name
[3167556.327998] [  244]     0   244     5306      171   0     -17         
-1000 udevd
[3167556.328014] [ 1589]     0  1589     4742      134   0       0             
0 rpcbind
[3167556.328027] [ 1620]   102  1620     5835      175   0       0             
0 rpc.statd
[3167556.328042] [ 1640]     0  1640     6322       25   1       0             
0 rpc.idmapd
[3167556.328058] [ 1916]     0  1916    29578      223   0       0             
0 rsyslogd
[3167556.328066] [ 1990]     0  1990     1604        0   2       0             
0 afsd
[3167556.328075] [ 2011]   104  2011    73819      223   1       0             
0 nslcd
[3167556.328101] [ 2063]     0  2063     4167       14   0       0             
0 atd
[3167556.328115] [ 2087]     0  2087    12462       91   0     -17         
-1000 sshd
[3167556.328128] [ 2105]     0  2105     4719      164   0       0             
0 cron
[3167556.328141] [ 2404]     0  2404     3643      167   3       0             
0 getty
[3167556.328156] [ 2405]     0  2405     3643      167   3       0             
0 getty
[3167556.328169] [ 2406]     0  2406     3643      167   1       0             
0 getty
[3167556.328190] [ 2407]     0  2407     3643      167   0       0             
0 getty
[3167556.328203] [ 2408]     0  2408     3643      167   1       0             
0 getty
[3167556.328223] [ 2409]     0  2409     3643      167   2       0             
0 getty
[3167556.328243] [ 4940]     0  4940     1248      108   0       0             
0 iscsid
[3167556.328261] [ 4941]     0  4941     3808     1255   0       0           
-17 iscsid
[3167556.328277] [ 5387]     0  5387    25061     1026   2     -17         
-1000 multipathd
[3167556.328292] [ 6119]     0  6119     5305      108   0     -17         
-1000 udevd
[3167556.328305] [ 6120]     0  6120     5305       76   0     -17         
-1000 udevd
[3167556.328325] [ 7557]     0  7557     9447      238   0       0             
0 master
[3167556.328341] [ 7564]   105  7564    10526      238   0       0             
0 qmgr
[3167556.328353] [11147]     0 11147    17962      190   3       0             
0 apache2
[3167556.328368] [11618]   106 11618    16587      948   3       0             
0 BackupPC
[3167556.328381] [11636]   106 11636    13421     1450   0       0             
0 BackupPC_trashC
[3167556.328396] [17220]     0 17220     3643      165   0       0             
0 getty
[3167556.328410] [19039]    33 19039    18488      120   0       0             
0 apache2
[3167556.328432] [19076]    33 19076    90729       86   0       0             
0 apache2
[3167556.328445] [19077]    33 19077    90729       85   0       0             
0 apache2
[3167556.328457] [21752]     0 21752     4050      981   0       0             
0 atop
[3167556.328471] [21994]   106 21994  1364283  1169570   0       0             
0 BackupPC_dump
[3167556.328493] [22003]   106 22003    11470      813   2       0             
0 ssh
[3167556.328506] [22025]   105 22025    10488      314   0       0             
0 pickup
[3167556.328517] [22027]   106 22027  1037513   874227   2       0             
0 BackupPC_dump
[3167556.328542] [22029]     0 22029     8400      232   1       0             
0 cron
[3167556.328554] [22030]     0 22030     1044      122   3       0             
0 sh
[3167556.328568] [22031]     0 22031     1020      153   0       0             
0 run-parts
[3167556.328584] [22151]     0 22151     2305      208   0       0             
0 mlocate
[3167556.328598] [22155]     0 22155     1036      220   3       0             
0 updatedb.mlocat


/Florian


-- 
Florian Streibelt
Chair "Intelligent Networks" (INET)
TEL 16
Technische Universität Berlin
Ernst-Reuter-Platz 7
10587 Berlin

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