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Re: [Freeipa-users] 389-ds memory usage



On 04/23/2012 05:45 PM, Rich Megginson wrote:
On 04/23/2012 09:22 AM, Sigbjorn Lie wrote:
Try increasing your nsslapd-cachememsize and monitoring it closely.
Using the size of id2entry.db4 is a good place to start, but that will
not be enough.

http://docs.redhat.com/docs/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/Monitori
ng_Server_and_Database_Activity-Monitoring_Database_Activity.html

See also https://fedorahosted.org/389/ticket/51 and
https://bugzilla.redhat.com/show_bug.cgi?id=697701

I'm using the latest available server in RHEL 6, has the fix for those bugs been applied to this
version?
No.  The fix will be in RHEL 6.3

389-ds-base-1.2.9.14-1.el6_2.2.x86_64

How much do you recommend increasing this too? My id2entry.db4 file is 7.2 MB.

Hard to day. Start out with 14.4 MB and monitor the cache usage over time.




Ok, will do. A restart of the directory server seem to be overdue. This was waiting for me today at the same server that I took the screendump of "top" yesterday...

It does take a few weeks to build up, so it might take me some time to respond with any findings.


named invoked oom-killer: gfp_mask=0x201da, order=0, oom_adj=0, oom_score_adj=0
named cpuset=/ mems_allowed=0
Pid: 3997, comm: named Not tainted 2.6.32-220.4.2.el6.x86_64 #1
Call Trace:
 [<ffffffff810c2b51>] ? cpuset_print_task_mems_allowed+0x91/0xb0
 [<ffffffff811138d0>] ? dump_header+0x90/0x1b0
 [<ffffffff8120d69c>] ? security_real_capable_noaudit+0x3c/0x70
 [<ffffffff81113d5a>] ? oom_kill_process+0x8a/0x2c0
 [<ffffffff81113c91>] ? select_bad_process+0xe1/0x120
 [<ffffffff811141b0>] ? out_of_memory+0x220/0x3c0
 [<ffffffff81123ece>] ? __alloc_pages_nodemask+0x89e/0x940
 [<ffffffff81158a1a>] ? alloc_pages_current+0xaa/0x110
 [<ffffffff81110cf7>] ? __page_cache_alloc+0x87/0x90
 [<ffffffff8112691b>] ? __do_page_cache_readahead+0xdb/0x210
 [<ffffffff81126a71>] ? ra_submit+0x21/0x30
 [<ffffffff81111fc3>] ? filemap_fault+0x4c3/0x500
 [<ffffffff8113b164>] ? __do_fault+0x54/0x510
 [<ffffffff8113b717>] ? handle_pte_fault+0xf7/0xb50
 [<ffffffff8141bee1>] ? sock_aio_read+0x181/0x190
 [<ffffffff8113c354>] ? handle_mm_fault+0x1e4/0x2b0
 [<ffffffff811762ba>] ? do_sync_read+0xfa/0x140
 [<ffffffff81042b79>] ? __do_page_fault+0x139/0x480
 [<ffffffff81218cef>] ? selinux_file_permission+0xbf/0x150
 [<ffffffff8103758c>] ? kvm_clock_read+0x1c/0x20
 [<ffffffff814f23fe>] ? do_page_fault+0x3e/0xa0
 [<ffffffff814ef7b5>] ? page_fault+0x25/0x30
Mem-Info:
Node 0 DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
Node 0 DMA32 per-cpu:
CPU    0: hi:  186, btch:  31 usd:  67
active_anon:347835 inactive_anon:119039 isolated_anon:0
 active_file:49 inactive_file:3712 isolated_file:0
 unevictable:0 dirty:1 writeback:0 unstable:0
 free:13252 slab_reclaimable:2830 slab_unreclaimable:13380
 mapped:827 shmem:59 pagetables:4953 bounce:0
Node 0 DMA free:8356kB min:332kB low:412kB high:496kB active_anon:2952kB inactive_anon:3832kB active_file:116kB inactive_file:232kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15348kB mlocked:0kB dirty:0kB writeback:0kB mapped:120kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:4kB kernel_stack:8kB pagetables:44kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:160 all_unreclaimable? no
lowmem_reserve[]: 0 2004 2004 2004
Node 0 DMA32 free:44652kB min:44720kB low:55900kB high:67080kB active_anon:1388388kB inactive_anon:472324kB active_file:80kB inactive_file:14616kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:0kB dirty:8kB writeback:0kB mapped:3188kB shmem:236kB slab_reclaimable:11320kB slab_unreclaimable:53516kB kernel_stack:2320kB pagetables:19768kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:277 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB 2*8kB 3*16kB 3*32kB 4*64kB 2*128kB 2*256kB 2*512kB 0*1024kB 1*2048kB 1*4096kB = 8356kB Node 0 DMA32: 917*4kB 677*8kB 347*16kB 212*32kB 117*64kB 57*128kB 13*256kB 4*512kB 1*1024kB 1*2048kB 0*4096kB = 44652kB
6230 total pagecache pages
2406 pages in swap cache
Swap cache stats: add 288041, delete 285635, find 4565761/4568506
Free swap  = 0kB
Total swap = 1048568kB
524284 pages RAM
10513 pages reserved
6827 pages shared
494838 pages non-shared
[ pid ]   uid  tgid total_vm      rss cpu oom_adj oom_score_adj name
[  493]     0   493     2782       57   0     -17         -1000 udevd
[ 1187]     0  1187     1553        2   0       0             0 portreserve
[ 1194]     0  1194    62187       93   0       0             0 rsyslogd
[ 1236]    32  1236     4756       44   0       0             0 rpcbind
[ 1254]    29  1254     5800       20   0       0             0 rpc.statd
[ 1286]     0  1286     7376       31   0       0             0 rpc.idmapd
[ 1306]     0  1306     9841       44   0       0             0 rpc.gssd
[ 1347]   496  1347   845694   366306   0       0             0 ns-slapd
[ 1419]   498  1419   297187    11273   0       0             0 ns-slapd
[ 1499]     0  1499    30950     7834   0       0             0 krb5kdc
[ 1511]     0  1511    14022       20   0       0             0 ipa_kpasswd
[ 1640]   497  1640   415291    24719   0       0             0 java
[ 1691]    81  1691    24853       66   0       0             0 dbus-daemon
[ 1703]     0  1703    47295        2   0       0             0 cupsd
[ 1728]     0  1728     1033        1   0       0             0 acpid
[ 1737]    68  1737     6776      169   0       0             0 hald
[ 1738]     0  1738     4539        2   0       0             0 hald-runner
[ 1784] 0 1784 5068 2 0 0 0 hald-addon-inpu [ 1801] 68 1801 4464 2 0 0 0 hald-addon-acpi
[ 1858]     0  1858    44108       98   0       0             0 sssd
[ 1864]     0  1864    63923      714   0       0             0 sssd_be
[ 1876]     0  1876    16024       26   0       0             0 sshd
[ 1884]    38  1884     8069       66   0       0             0 ntpd
[ 1891]     0  1891    43086      207   0       0             0 sssd_nss
[ 1892]     0  1892    44935      234   0       0             0 sssd_pam
[ 1978]     0  1978    19679       26   0       0             0 master
[ 1985]    89  1985    20260       60   0       0             0 qmgr
[ 2002]     0  2002    29709       51   0       0             0 abrtd
[ 2010] 0 2010 2304 19 0 0 0 abrt-dump-oops
[ 2024]     0  2024    27120      114   0       0             0 ksmtuned
[ 2033]     0  2033    29312       25   0       0             0 crond
[ 2044]     0  2044     5373        5   0       0             0 atd
[ 2062]     0  2062    14288       27   0       0             0 certmonger
[ 2231]     0  2231     7556       19   0       0             0 cfservd
[ 2378]     0  2378    24457      131   0       0             0 cfexecd
[ 2452]     0  2452     7640      149   0       0             0 cfenvd
[ 2553]     0  2553     1029        2   0       0             0 mingetty
[ 2555]     0  2555     1029        2   0       0             0 mingetty
[ 2557]     0  2557     1029        2   0       0             0 mingetty
[ 2559]     0  2559     1029        2   0       0             0 mingetty
[ 2561]     0  2561     1029        2   0       0             0 mingetty
[ 2563]     0  2563     1029        2   0       0             0 mingetty
[ 2569]     0  2569     3111      108   0     -17         -1000 udevd
[ 2587]     0  2587    23312       41   0     -17         -1000 auditd
[ 2923]     0  2923   187259      776   0       0             0 automount
[ 3999]     0  3999     9846       40   0       0             0 nss_pcache
[ 4001]     0  4001   221259     1345   0       0             0 httpd
[ 3996]    25  3996    56544    12252   0       0             0 named
[30951]     0 30951     6053       59   0       0             0 xinetd
[31131]     0 31131     2781       54   0     -17         -1000 udevd
[30457]     0 30457    25642      407   0       0             0 sshd
[30464]  5000 30464    25642      406   0       0             0 sshd
[30465]  5000 30465    27640      116   0       0             0 bash
[28720]     0 28720    25642      406   0       0             0 sshd
[28723]  5000 28723    25642      405   0       0             0 sshd
[28724]  5000 28724    27615      109   0       0             0 bash
[31792]    48 31792   263393    10920   0       0             0 httpd
[31793]    48 31793   263393    10920   0       0             0 httpd
[31794]    48 31794   227580     2198   0       0             0 httpd
[31795]    48 31795   227580     2198   0       0             0 httpd
[31796]    48 31796   227580     2198   0       0             0 httpd
[31797]    48 31797   227580     2199   0       0             0 httpd
[31798]    48 31798   227580     2200   0       0             0 httpd
[31799]    48 31799   227580     2204   0       0             0 httpd
[31800]    48 31800   227580     2198   0       0             0 httpd
[31801]    48 31801   227580     2198   0       0             0 httpd
[23118]    48 23118   227580     2198   0       0             0 httpd
[14842]    89 14842    20216      204   0       0             0 pickup
[16012]     0 16012     4334       50   0       0             0 anacron
[16688]     0 16688    25240       18   0       0             0 sleep
Out of memory: Kill process 1347 (ns-slapd) score 788 or sacrifice child
Killed process 1347, UID 496, (ns-slapd) total-vm:3382776kB, anon-rss:1463896kB, file-rss:1328kB




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