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Out of memory

Discussion in 'General Discussion' started by Everton, Oct 15, 2015.

  1. Everton

    Everton Registered

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    hello, I'm getting this notification by email.
    How to solve?

    ----------------------------------------------------------------------------------------------------
    Out of memory: A process was terminated because the system is low on memory.

    In order to avoid a system crash due to low memory, the kernel terminated process ID “623315”.
     
    #1 Everton, Oct 15, 2015
  2. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Twitter:
    Hello :)

    Could you post the full output of the email in CODE tags, but with actual domain names, IP addresses, and any identifying information removed?

    Thank you.
     
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    #2 cPanelMichael, Oct 15, 2015
  3. Everton

    Everton Registered

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    ok, is as follows:


    Code:
    -------------------------------------------------------------------------------------------------------------------------
Out of memory: A process was terminated because the system is low on memory.

In order to avoid a system crash due to low memory, the kernel terminated process ID “713103”.

[B]Server[/B] cloud.example.com
[B]Primary IP Address[/B] 104.200.20.149
[B]Event Time[/B] Friday, October 16, 2015 8:10:01 AM UTC
[B]Process ID[/B] 713103
[B]Process Total Virtual Memory[/B] 166676kB
[B]Process Anonymous Resident Set Size[/B] 52332kB
[B]Process File Resident Set Size[/B] 6604kB
[B]Status[/B] Out of Memory 
[B]Memory Information[/B]
Used 1.69 GB
Available 2.01 GB
Installed 3.7 GB
[B]Load Information[/B] 0.07 0.14 0.13
[B]Uptime[/B] 6 days, 5 hours, 17 minutes, and 3 seconds
[B]IOStat Information[/B] avg-cpu:  %user  %nice %system %iowait  %steal  %idle           3.89    0.60    0.58    0.07    0.00  94.86 Device:            tps    kB_read/s    kB_wrtn/s    kB_read    kB_wrtn sdb              1.54        9.16        12.08    4923424    6491220 sda              24.34      1058.29      336.38  568747229  180776912
[B]Top Processes
PID[/B] [B]Owner[/B] [B]CPU %[/B] [B]Memory %[/B] [B]Command[/B]
817 mysql 0.46 19.04 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --log-error=/var/lib/mysql/cloud.compactaweb.com.err --open-files-limit=10000 --pid-file=/var/lib/mysql/cloud.compactaweb.com.pid
559472 root 0.03 8.00 /usr/local/cpanel/3rdparty/bin/clamd
360879 compact 9.00 3.31 php -q /home/compact/public_html/central/crons/cron.php
559167 root 0.02 1.45 /usr/local/cpanel/3rdparty/perl/514/bin/spamd --daemonize --max-spare=1 --max-children=3 --allowed-ips=127.0.0.1 --pidfile=/var/run/spamd.pid -i127.0.0.1
658710 root 0.02 1.45 spamd child
For addtional details, please see the attached dmesg log dump.



[B] Preview of “oom_dmesg.txt” [/B]
[537233.224560] [710168] 99 710168 23293 1546 46 83 0 httpd
[537233.226256] [710231] 99 710231 23293 1534 46 88 0 httpd
[537233.227836] [710257] 99 710257 23289 1527 46 83 0 httpd
[537233.229391] [713099] 1017 713099 41670 14733 84 0 0 php
[537233.231255] [713100] 1017 713100 41666 14726 81 1 0 php
[537233.233086] [713101] 1017 713101 41669 14733 83 0 0 php
[537233.234958] [713102] 1017 713102 41666 14677 82 0 0 php
[537233.236801] [713103] 1017 713103 41669 14734 83 0 0 php
[537233.238654] Memory cgroup out of memory: Kill process 713103 (php) score 75 or sacrifice child
[537233.240647] Killed process 713103 (php) total-vm:166676kB, anon-rss:52332kB, file-rss:6604kB
Configure Monitor Settings:
[URL]https://cloud.example.com:2087/scripts/srvmng#service-chkservd[/URL]

Configure chkservd:
[URL]https://cloud.example.com:2087/scripts2/tweaksettings?find=chkservd[/URL]

Disable HTML notifications:
[URL]https://cloud.example.com:2087/scripts2/tweaksettings?find=chkservd_plaintext_notify[/URL]

This notice was generated “Friday, October 16, 2015 8:13:11 AM UTC”.

“Out of Memory” notifications are currently configured to have an importance of “High”. You can change the importance or disable this type of notification in WHM’s Contact Manager at: [URL]https://cloud.example.com:2087/scripts2/editcontact?event=chkservd::OOM[/URL]



Copyright© 2015 cPanel, Inc.




oom_dmesg.txt

[537233.151869] php invoked oom-killer: gfp_mask=0xd0, order=0, oom_score_adj=0
[537233.153676] php cpuset=1017 mems_allowed=0
[537233.154884] CPU: 2 PID: 713100 Comm: php ve: 0 Tainted: PF O-------------- 3.10.0-233.1.2.lve1.3.33.4.el7.x86_64 #1 ovz.4.1
[537233.157696] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
[537233.160190] 0000000000000000 00000000547ab0d0 ffff880082d1d800 ffffffff815d3536
[537233.162122] ffff880082d1d890 ffffffff815cf3f4 0000000000000000 00000000000200da
[537233.164238] 0000000000000001 ffff880082d1d860 ffffffff81154a96 ffff880036396230
[537233.166343] Call Trace:
[537233.167203] [<ffffffff815d3536>] dump_stack+0x19/0x1b
[537233.168463] [<ffffffff815cf3f4>] dump_header+0x8e/0x214
[537233.169701] [<ffffffff81154a96>] ? find_lock_task_mm+0x56/0xc0
[537233.171017] [<ffffffff81154f2e>] oom_kill_process+0x24e/0x3b0
[537233.172365] [<ffffffff81154a96>] ? find_lock_task_mm+0x56/0xc0
[537233.173666] [<ffffffff8106b670>] ? has_capability_noaudit+0x20/0x30
[537233.175190] [<ffffffff811ba5ce>] __mem_cgroup_try_charge+0xb9e/0xbe0
[537233.176671] [<ffffffff811bae80>] ? mem_cgroup_charge_common+0xc0/0xc0
[537233.178078] [<ffffffff811bae19>] mem_cgroup_charge_common+0x59/0xc0
[537233.179465] [<ffffffff811bbfba>] mem_cgroup_cache_charge+0x8a/0xb0
[537233.180879] [<ffffffff811518e2>] __add_to_page_cache_locked+0x52/0x270
[537233.182329] [<ffffffff81151b57>] add_to_page_cache_lru+0x37/0xb0
[537233.183674] [<ffffffff81203085>] mpage_readpages+0xb5/0x160
[537233.184995] [<ffffffffa00eb0f0>] ? _ext4_get_block+0x1b0/0x1b0 [ext4]
[537233.186368] [<ffffffffa00eb0f0>] ? _ext4_get_block+0x1b0/0x1b0 [ext4]
[537233.187795] [<ffffffffa01d2691>] ? iolimit_virtinfo+0x381/0x410 [iolimits]
[537233.189374] [<ffffffffa00e93fa>] ext4_readpages+0x3a/0x50 [ext4]
[537233.190740] [<ffffffff8115da2d>] __do_page_cache_readahead+0x1dd/0x260
[537233.192182] [<ffffffff8115e181>] ra_submit+0x21/0x30
[537233.193389] [<ffffffff811539fe>] filemap_fault+0x2fe/0x490
[537233.194725] [<ffffffff8117a8c8>] __do_fault+0x88/0x570
[537233.195991] [<ffffffff8117fb85>] handle_mm_fault+0x3c5/0x7b0
[537233.196917] [<ffffffff815d8132>] ? down_write+0x12/0x30
[537233.197785] [<ffffffff81176fab>] ? anon_vma_interval_tree_insert+0x8b/0x90
[537233.198861] [<ffffffff815dedbe>] __do_page_fault+0x15e/0x530
[537233.199756] [<ffffffff81184352>] ? vma_merge+0x232/0x340
[537233.200633] [<ffffffff811833d9>] ? __vm_enough_memory+0x29/0x170
[537233.201931] [<ffffffff8118545b>] ? do_brk+0x14b/0x390
[537233.203108] [<ffffffff815df1aa>] do_page_fault+0x1a/0x70
[537233.204326] [<ffffffff815de869>] do_async_page_fault+0x29/0xe0
[537233.205614] [<ffffffff815db438>] async_page_fault+0x28/0x30
[537233.206799] Task in /1017 killed as a result of limit of /1017
[537233.208521] memory: usage 262144kB, limit 262144kB, failcnt 258495
[537233.209908] memory+swap: usage 262160kB, limit 9007199254740991kB, failcnt 0
[537233.211369] kmem: usage 0kB, limit 9007199254740991kB, failcnt 0
[537233.212708] Memory cgroup stats for /1017: cache:56KB rss:262088KB rss_huge:0KB mapped_file:0KB swap:16KB inactive_anon:88672KB active_anon:173288KB inactive_file:52KB active_file:0KB unevictable:0KB
[537233.220134] [ pid ] uid tgid total_vm rss nr_ptes swapents oom_score_adj name
[537233.221630] [710166] 99 710166 23289 1542 46 83 0 httpd
[537233.223084] [710167] 99 710167 23293 1532 46 83 0 httpd
[537233.224560] [710168] 99 710168 23293 1546 46 83 0 httpd
[537233.226256] [710231] 99 710231 23293 1534 46 88 0 httpd
[537233.227836] [710257] 99 710257 23289 1527 46 83 0 httpd
[537233.229391] [713099] 1017 713099 41670 14733 84 0 0 php
[537233.231255] [713100] 1017 713100 41666 14726 81 1 0 php
[537233.233086] [713101] 1017 713101 41669 14733 83 0 0 php
[537233.234958] [713102] 1017 713102 41666 14677 82 0 0 php
[537233.236801] [713103] 1017 713103 41669 14734 83 0 0 php
[537233.238654] Memory cgroup out of memory: Kill process 713103 (php) score 75 or sacrifice child
[537233.240647] Killed process 713103 (php) total-vm:166676kB, anon-rss:52332kB, file-rss:6604kB
     
    #3 Everton, Oct 16, 2015
    Last edited by a moderator: Oct 16, 2015
  4. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Twitter:
    That output indicates a PHP process was the culprit of the memory usage. The notification indicates the process was automatically killed to prevent that process from crashing the system due to a lack of memory. Was this a one-time notification or does it continue to occur?

    Thank you.
     
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    #4 cPanelMichael, Oct 19, 2015
  5. Jeffrey Anthony Ansen

    Jeffrey Anthony Ansen Member

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    Hi Michael, sorry to jump in but I have the same situation like Everton. It continue to occur :(

    So what might happened? Am I getting a brute force attack or my actually memory was too low (it's only 1GB)?

    Can I copy paste full output here?
     
    #5 Jeffrey Anthony Ansen, Jan 16, 2016
  6. cPanelMichael

    cPanelMichael Technical Support Community Manager
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    Twitter:
    Could you elaborate on which type of processes are killed? How frequent do you receive this notification?

    Thank you.
     
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    #6 cPanelMichael, Jan 18, 2016
  7. mageshm

    mageshm Well-Known Member

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    @ Jeffrey Anthony Ansen,
    Are you facing out of memory error very often or rarely ? It seem's PHP process are eating entire server RAM from below account as per your email output.

    360879 compact 9.00 3.31 php -q /home/compact/public_html/central/crons/cron.php

    I advise you to check or closely watch the particular account activity. I can see cron.php file is culprit, so check whether they configured cron every 5 mins or anything is abnormal on cron jobs.

    Hope this will help you to identify your issue.
     
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    #7 mageshm, Feb 18, 2016
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