Re: starting ntop errors and warnings

Spiros Papageorgiou <[email protected]>
Newsgroups gmane.linux.ntop.general
Message-ID <[email protected]> 
Hi Alfredo,

Here is the output:
[root@server ~]# cat /proc/mounts | grep huge
cgroup /sys/fs/cgroup/hugetlb cgroup 
rw,nosuid,nodev,noexec,relatime,hugetlb 0 0
hugetlbfs /dev/hugepages hugetlbfs rw,relatime 0 0

[root@server ~]# cat /sys/devices/system/node/node*/meminfo | grep Huge
Node 0 AnonHugePages:   2488320 kB
Node 0 HugePages_Total:  2048
Node 0 HugePages_Free:   2048
Node 0 HugePages_Surp:      0
[root@server ~]#

Regards,
Sp

On 31/8/2017 8:06 μμ, Alfredo Cardigliano wrote:
> Hi Spiros
> please provide the output of:
>
> cat /proc/mounts / grep huge
> cat /sys/devices/system/node/node*/meminfo | grep Huge
>
> Alfredo
>
>> On 31 Aug 2017, at 18:53, Spiros Papageorgiou <[email protected]> wrote:
>>
>> Hi all,
>>
>>
>> I have an updated ntopng/pfring-zc installation and when I start ntopng the following messages are produced:
>>
>> Aug 30 18:05:06 server logger: ntopng start
>> Aug 30 18:05:08 server ntopng: [ViewInterface.cpp:50] ERROR: Internal Error: NULL interface [view:zc:ens160@0,zc:ens160@1,zc:ens160@2,zc:ens160@3][2]
>> Aug 30 18:05:08 server ntopng: [ViewInterface.cpp:50] ERROR: Internal Error: NULL interface [view:zc:ens160@0,zc:ens160@1,zc:ens160@2,zc:ens160@3][2]
>> Aug 30 18:05:08 server ntopng: [ViewInterface.cpp:50] ERROR: Internal Error: NULL interface [view:zc:ens160@0,zc:ens160@1,zc:ens160@2,zc:ens160@3][2]
>> Aug 30 18:05:08 server ntopng: [ViewInterface.cpp:50] ERROR: Internal Error: NULL interface [view:zc:ens160@0,zc:ens160@1,zc:ens160@2,zc:ens160@3][2]
>> Aug 30 18:05:08 server kernel: device ens160 entered promiscuous mode
>> Aug 30 18:05:09 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:05:11 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:05:11 server ntopng: Starting ntopng: Unable to start ntopng[FAILED]
>> Aug 30 18:05:11 server systemd: Started Start/stop ntopng program.
>> Aug 30 18:05:12 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:05:14 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:05:14 server kernel: traps: ntopng[2575] general protection ip:42df01 sp:7ff418f69b60 error:0 in ntopng[400000+264000]
>> Aug 30 18:05:15 server kernel: device ens160 left promiscuous mode
>> Aug 30 18:05:15 server systemd: ntopng.service: main process exited, code=killed, status=11/SEGV
>>
>> Why the view of all queues does not work? How should i write this line?
>>
>> When I delete from ntopng.conf, the "view:zc:ens160@0,zc:ens160@1,zc:ens160@2,zc:ens160@3" line, the I get another bunch of warnings:
>>
>> Aug 30 18:06:50 server systemd: Starting Start/stop ntopng program...
>> Aug 30 18:06:50 server logger: ntopng start
>> Aug 30 18:06:51 server kernel: device ens160 entered promiscuous mode
>> Aug 30 18:06:52 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:06:53 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:06:55 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:06:55 server ntopng: Starting ntopng: Unable to start ntopng[FAILED]
>> Aug 30 18:06:55 server systemd: Started Start/stop ntopng program.
>> Aug 30 18:06:56 server ntopng: [PF_RINGInterface.cpp:72] WARNING: Unable to set packet capture direction
>> Aug 30 18:06:57 server ZC[2647]: error opening /dev/hugepages/ens160@1-txrx: Permission denied
>> Aug 30 18:06:57 server ZC[2647]: error mmap'ing 49 hugepages of 2048 KB
>> Aug 30 18:06:58 server ZC[2647]: error opening /dev/hugepages/ens160@0-txrx: Permission denied
>> Aug 30 18:06:58 server ZC[2647]: error mmap'ing 49 hugepages of 2048 KB
>> Aug 30 18:06:58 server ZC[2647]: error opening /dev/hugepages/ens160@2-txrx: Permission denied
>> Aug 30 18:06:58 server ZC[2647]: error mmap'ing 49 hugepages of 2048 KB
>> Aug 30 18:06:58 server ZC[2647]: error opening /dev/hugepages/ens160@3-txrx: Permission denied
>> Aug 30 18:06:58 server ZC[2647]: error mmap'ing 49 hugepages of 2048 KB
>> Aug 30 18:07:01 server systemd: Started Session 6 of user root.
>> Aug 30 18:07:01 server systemd: Starting Session 6 of user root.
>>
>> The ntopng then, seems to be working but I would like to get rid of the errors. What should I do to avoid the hugepages errors? I'm running ntop as root (though I can see it drops privs).
>>
>> My conf:
>>
>> -G=/var/run/ntopng.pid
>> --data-dir=/mnt/data/ntopng
>> #--interface=zc:ens160
>> --interface=zc:ens160@0
>> --interface=zc:ens160@1
>> --interface=zc:ens160@2
>> --interface=zc:ens160@3
>> #--interface=view:zc:ens160@0,zc:ens160@1,zc:ens160@2,zc:ens160@3
>> --local-networks="xx.xx.0.0/16,xx.xx.cc.0/24,xx.xx.ff.0/22,xx.xx.vv.0/24"
>> --dns-mode=3
>> --disable-autologout
>> --max-num-flows=512000
>> --max-num-hosts=256000
>> --sticky-hosts=none
>> -g -1
>>
>> # cat /etc/ntopng/ntopng.start
>> #
>>
>> # cat /etc/pf_ring/hugepages.conf
>> node=0 hugepages=1024
>> # cat /etc/pf_ring/pf_ring.conf
>> transparent_mode=2
>>
>> # cat /etc/pf_ring/pf_ring.start
>> # cat /etc/pf_ring/zc/ixgbe/ixgbe.conf
>> RSS=0,0,0,0
>> # cat /etc/pf_ring/zc/ixgbe/ixgbe.start
>> #
>>
>>
>>
>> Regards,
>>
>> Spiros
>>
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>
>
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