Hot!FortiOS 6.2: memory issues, best approach

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ted barker
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2019/04/01 12:29:48 (permalink)
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FortiOS 6.2: memory issues, best approach

Hi, 
 
I've been running 6.2 Beta and have switched to 6.2 public release, but the memory goes quickly up and system enters conserve mode and the system becomes unusable.
 
The 61E was running always around 75 to 80% for a couple of months, now with 6.2 the memory increased after an hour to that level and became useless.
 
What are your experiences and any best approaches with 6.2 troubleshooting (most probably the same as before) and feedback to Fortinet?
#1

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    seadave
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    Re: FortiOS 6.2: memory issues, best approach 2019/04/01 16:32:10 (permalink)
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    .0 releases of FortiOS are notorious for having bugs.  If this is a testing/lab firewall then go for it, but if you are using this in a production environment you are better off using a later 5.6.X or 6.0.X release for stability. 
     
    For example at work we are still on a later variant of 5.6.X for a 500D supporting hundreds of users, while at home I have a FWF60E and I'm running 6.0.3.  I had some issues with DNS and 6.0.4 so I haven't gone past .3 yet.
     
    We just grabbed a pair of 501s, and we will test 6.0.4 on those before we put into production with the assumption that the newer hardware on the 501Es will handle 6.0.X better.
     
    I know it is tempting to get access to the latest gizmos, but on a FG of your size you are going to be constrained as to what you can do.  It may help to review the features enabled and turn off anything you are not using such as WLAN or Switch Control, Adv Routing, etc.
     
    If you do open a ticket, you can SSH into the gate and capture some of the following:
     
    diag debug crashlog read
    (If that is insanely long, use "diag debug crashlog clear", wait 24 hours and send the new output)
    If the UI is crashing and you can login, you may need to keep an open terminal session up via serial to capture the output, or enable Syslog.
     
    Here is an article with more info:
     
    https://help.fortinet.com/fos50hlp/54/Content/FortiOS/fortigate-toubleshooting-54/troubleshooting_tools.htm
     
    for 5.4 but still useful.
     
     
    #2
    seadave
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    Re: FortiOS 6.2: memory issues, best approach 2019/04/01 16:34:44 (permalink)
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    You should follow/read this thread also: https://forum.fortinet.com/tm.aspx?m=172872
     
    #3
    sullimd
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    Re: FortiOS 6.2: memory issues, best approach 2019/07/09 23:06:00 (permalink)
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    Experienced the same thing with 2 customers - today.  It's the wad service using all the memory, device goes into conserve mode, then I get a call that the internet is down.
     
    #diag sys top - find the wad service
    #diag sys kill 11 wad-service-id
    #4
    BrianB
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    Re: FortiOS 6.2: memory issues, best approach 2019/07/10 08:59:25 (permalink)
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    Two 1500D's in HA A/P
    WAD service creates memory creep.
    Created an automation stitch to restart the WAD process daily at 3am.  Supposedly fixed in 6.2.1
    Once restarted memory drops by 20%.
     
    diagnose test application wad 99
    #5
    mok
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    Re: FortiOS 6.2: memory issues, best approach 2019/07/15 01:23:35 (permalink)
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    Anyone know when the 6.2.1 will be release ?!
    3 month with this bug, it is very annoying.
    #6
    NapaCab
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    Re: FortiOS 6.2: memory issues, best approach 2019/07/30 11:14:52 (permalink)
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    There's been an IPS memory leak bug that's still not resolved since FOS 5.4 :(
    #7
    hutchnate
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    Re: FortiOS 6.2: memory issues, best approach 2019/08/20 14:41:51 (permalink)
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    Having issues with internet going out after upgrading from 6.0.5 to 6.2 as well. Logged in to find it was in conserve mode due to memory usage. 
    #8
    zaphod
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    Re: FortiOS 6.2: memory issues, best approach 2019/08/21 00:08:56 (permalink)
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    Update to 6.2.1 will fix the memory issues....
     
    greets
     
    zaphod
     
    #9
    billsey
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    Re: FortiOS 6.2: memory issues, best approach 2019/08/22 09:04:49 (permalink)
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    Still seeing them in 6.2.1 on my 30E. Had to reboot this morning when no one could access the internet. Memory usage seems stable at 65% now, but was at 98% before the reboot. 6.2.1 has been installed for a couple of weeks or more.
    #10
    hutchnate
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    Re: FortiOS 6.2: memory issues, best approach 2019/08/22 10:24:22 (permalink)
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    wow what a difference after upgrade to 6.2.1. 82% memory use with 6.2.0 to 35% post upgrade. thanks. 
    #11
    zaphod
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    Re: FortiOS 6.2: memory issues, best approach 2019/08/22 23:28:32 (permalink)
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    @billsey
    after upgrade to 6.2.1 the memory problems i got are gone (is a 80E) maybe a reset helps in your environment..
     
    greets
     
    zaphod
     
    #12
    billsey
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    Re: FortiOS 6.2: memory issues, best approach 2019/09/03 14:07:35 (permalink)
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    A reset gets me back to normal memory usage, for a while. Right n ow I'm back up to 87% and in Conserve mode. :(
    A quick "diagnose test application wad 99" took me to 66%, I wonder if my 6.2.1 is an early release (v6.2.1 build0932 (GA)) that didn't have it fixed... Though it says I'm at the latest version.
     
    post edited by billsey - 2019/09/03 14:11:51
    #13
    zaphod
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    Re: FortiOS 6.2: memory issues, best approach 2019/09/03 23:21:41 (permalink)
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    another way that maybe fix this:
     
    backup your config (but encrypted so passwords and vpn passwords are in it), factory default the forti and import backup after this...
     
    it is the last version, got it running on many fortis now and no problems anymore with conserve mode or memory consumption...
     
    greets
     
    zaphod
     
    #14
    krtfransas
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    Re: FortiOS 6.2: memory issues, best approach 2019/09/17 00:37:37 (permalink)
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    Any update on this? has it been fixed on 6.2.1 Firmware? i also got the same issue High CPU usage
    #15
    zaphod
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    Re: FortiOS 6.2: memory issues, best approach 2019/09/17 05:01:19 (permalink)
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    it is fixed with 6.2.1
    so give it a try.. 
    #16
    krtfransas
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    Re: FortiOS 6.2: memory issues, best approach 2019/09/17 17:36:17 (permalink)
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    got it. i'll monitor this firmware for the mean time
    #17
    UrbyTuesday
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    Re: FortiOS 6.2: memory issues, best approach 2019/09/18 14:45:28 (permalink)
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    this seems to keep it under control for me.  even on 6.2.1  they'll creep to 70% depending on what is enabled.  This resets IPS every 6 hours and keeps mem around 55-60%, which I can live with.
     
    config system auto-script
    edit "IPSReset"
    set interval 21600
    set repeat 0
    set start auto
    set script "diagnose test application ipsmonitor 99"
    next
    end
    #18
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