lfd: Excessive processes running under user mystery

  • Resolved scullydion

    (@scullydion)


    9 years, 3 months ago

    Hello

    I’ve been strugginling with this problem for weeks now, been reading various forums and really can’t figure out how to fix this problem of excessive processes which then results in my server’s death.

    SERVER INFORMATION
    Processor Information
    Total processors: 2
    Processor #1
    Vendor GenuineIntel
    Name Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
    Speed 2800.066 MHz
    Cache 25600 KB
    Processor #2
    Vendor GenuineIntel
    Name Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
    Speed 2800.066 MHz
    Cache 25600 KB

    Memory Information

    Memory: 4057920k/4194304k available (5648k kernel code, 448k absent, 135936k reserved, 5638k data, 1464k init)

    System Information

    Linux server 3.4.46-8.el6.centos.alt.x86_64 #1 SMP Wed May 22 01:29:08 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

    Physical Disks

    Current Memory Usage

    total used free shared buffers cached
    Mem: 4107260 961040 3146220 272 65492 354436
    -/+ buffers/cache: 541112 3566148
    Swap: 4194296 379800 3814496
    Total: 8301556 1340840 6960716

    Current Disk Usage

    Filesystem Size Used Avail Use% Mounted on
    /dev/mapper/vg_94762034-lv_root 82G 29G 50G 37% /
    tmpfs 2.0G 0 2.0G 0% /dev/shm
    /dev/xvda1 485M 74M 386M 17% /boot
    /usr/tmpDSK 2.8G 73M 2.6G 3% /tmp

    SITE DETAILS
    7 wordpress sites

    TRAFFIC
    The busiest site gets:
    Total Hits 925487
    Total Files 830514
    Total Pages 118651
    Total Visits 36767

    The other sites at most get:
    Total Hits 279520
    Total Files 119550
    Total Pages 39751
    Total Visits 13732

    The busiest sites use Templatic Directory theme and I have installed plugins Better WordPress Minify, Disable All WordPress Updates, Heartbeat Control, WP Super Cache – all in effort to stop excessive processes on index.php and sometimes on admin-ajax.php – but this hasn’t helped.

    I have also read about changing PHP.ini settings memory_limit to 96M and max_execution_time to 60 (these were previously much higher) and this hasn’t helped.

    Cron has also be disabled.

    I’m new to VPS and I’m at my wits end – do I have too many sites / traffic running? Or is it wordpress settings itself? Any and all suggestions welcome.

    Thank you all in advance!

    Clare

Viewing 3 replies - 1 through 3 (of 3 total)

  • When my server has been performing worse than expected, it has almost always been related to hacking requests i.e. repeated requests from the same IP or repeated requests to the same file e.g. xmlrpc.php or wp-login.php. Have you reviewed your access logs for this kind of activity? You can use .htaccess to block access (many tutorials out there) and even use a single file to apply to all sites if they reside in the same directory.

    Thread Starter scullydion

    (@scullydion)

    Thanks Marios. Sometimes you just need someone else to point out something obvious when you’ve been looking so hard! I’ve taken your advice and have blocked xmlrpc.php and password protected wp-login.php, so will monitor and fingers crossed things will be running smoothly.

    One interesting factor I noticed in the logs was repeated access attempts to xmlrpc.php from a CloudFlare IP address.

    Thread Starter scullydion

    (@scullydion)

    It’s been a week and globally disabling xmlrpc.php and and restricting access to wp-login.php have done the trick – thank you!

Viewing 3 replies - 1 through 3 (of 3 total)
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