Pending AIO operation, recycle later.... Lot of Errors

Discussion in 'General' started by sahith, Feb 13, 2014.

  1. sahith

    sahith New Member

    I am getting lot of errors like
    My error log is almost full of these errors. I need help over clearing these errors please.

    System Config :
    Dual Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz
    64GB of RAM (only 8% being utilized at present)
    2x300GB SAS Drivers in RAID1
    1GBPS WAN.
  2. mistwang

    mistwang LiteSpeed Staff

    those are not errors, just the way AIO works.
    what is the I/O wait of your server in the top output? show us the top output
    You need to find out the root cause of the high I/O wait and minimized it. since you have 64GB memory, you can move PHP session, and other temp files to /dev/shm instead of /tmp.
  3. sahith

    sahith New Member

    May i know how to move tmp files to/dev/shm. And which top command output you want
  4. sahith

    sahith New Member

    top - 23:54:09 up 89 days, 16:41, 2 users, load average: 3.33, 3.87, 21.62
    Tasks: 536 total, 4 running, 530 sleeping, 2 stopped, 0 zombie
    Cpu(s): 9.1%us, 2.9%sy, 0.0%ni, 86.0%id, 1.0%wa, 0.0%hi, 1.0%si, 0.0%st
    Mem: 65944680k total, 41812312k used, 24132368k free, 257488k buffers
    Swap: 2097144k total, 44k used, 2097100k free, 36174768k cached
  5. mistwang

    mistwang LiteSpeed Staff

    edit php.ini, change session save path to /dev/shm
  6. mistwang

    mistwang LiteSpeed Staff

    If use LiteSpeed page cache, change page cache storage path to /dev/shm/lscache
  7. sahith

    sahith New Member

    How much space allocated to /dev/shm. Is it RAMDISK?
  8. mistwang

    mistwang LiteSpeed Staff

    Yes, it is ramdis,by default linux give half of total memory to /dev/shm, you server should have 32GB. You can change it from /etc/fstab.
  9. sahith

    sahith New Member

    THank you for your attention. You are so much helpful wherever i was needed, i will implement those recommendations at first.
  10. sahith

    sahith New Member

    Implementing this go so many problems later, now litespeed is not even working. Even after force reinstall. I need help please.
  11. NiteWave

    NiteWave Administrator

    check of /dev/shm is full
    create a cronjob to clean up old files on /dev/shm to ensure it's not full
    also run
    df -hi
    to see if inode is full
  12. sahith

    sahith New Member

    No i reverted back to /tmp, to make sure it works fine. Anyway i even disabled litespeed cache. Whatever litespeed is not working. Even if switched to litespeed.

    From then i am getting 404 error pages for all sites displaying "
    Index of /"
  13. sahith

    sahith New Member

    I even getting the follwing error sometimes when switching back to Apache,
  14. NiteWave

    NiteWave Administrator

    if it's WHM/cPanel, please go
    WHM->Litespeed Plugin
    to switch between apache and litespeed

    is the 404 error fixed ?
  15. sahith

    sahith New Member

    I hired a server admin, who fixed it. It was caused due some permissions issue.

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