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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