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Here's my updated configuration used on my AC87U which disables the IPv6 and shows the IPv4 which was missing previously.
Came across the necessary information here: https://github.com/firehol/netdata/wiki/netdata-for-IoT

Code: 
### NetData Configuration                                                                                                                               
[global]                                                                                                                                                                                                                               
        run as user = nobody                                                                                                                                                                                                           
        web files owner = root                                                                                                                                                                                                         
        web files group = root                                                                                                                                                                                                         
        update every = 2                                                                                                                                                                                                               
        history = 1800                                                                                                                                                                                                                 
        access log = none                                                                                                                                                                                                             
        debug log = syslog                                                                                                                                                                                                             
        error log = syslog                                                                                                                                                                                                             
        memory mode = ram                                                                                                                                                                                                             
                                                                                                                                                                                                                                      
[plugins]                                                                                                                                                                                                                             
        charts.d = no                                                                                                                                                                                                                 
        apps = no                                                                                                                                                                                                                     
        node.d = no                                                                                                                                                                                                                   
        tc = no                                                                                                                                                                                                                       
        cgroups = no                                                                                                                                                                                                                   
        python.d = no                                                                                                                                                                                                                 
                                                                                                                                                                                                                                      
[health]                                                                                                                                                                                                                               
        enabled = no                                                                                                                                                                                                                   
                                                                                                                                                                                                                                      
[plugin:proc]                                                                                                                                                                                                                         
        /proc/net/softnet_stat = no                                                                                                                                                                                                   
        /proc/net/snmp = yes                                                                                                                                                                                                           
        /proc/net/snmp6 = no                                                                                                                                                                                                           
        /sys/kernel/mm/ksm = no                                                                                                                                                                                                       
        /proc/net/netstat = no                                                                                                                                                                                                         
        /proc/net/ip_vs_stats = no                                                                                                                                                                                                     
        /proc/net/stat/synproxy = no                                                                                                                                                                                                   
        /proc/net/rpc/nfsd = no                                                                                                                                                                                                       
        /proc/net/rpc/nfs = no
 
Updated netdata to 1.6.0 a couple days back but hadn't looked at the system log since until today and noticed I'm getting a lot of error messages reported by it. Haven't been able to track down a solution yet, wondering if anyone else is seeing the same thing.

Code: 
May 11 20:19:43 netdata[15284]: Listening on '[::]:19999'
May 11 20:19:43 netdata[15284]: PLUGINS.D thread created with task id 15290
May 11 20:19:43 netdata[15284]: netdata initialization completed. Enjoy real-time performance monitoring!
May 11 20:19:43 netdata[15284]: Cannot popen("exec /opt/lib/netdata/plugins.d/fping.plugin 2 ", "r").
May 11 20:19:43 netdata[15284]: PLUGINSD: '/opt/lib/netdata/plugins.d/fping.plugin' thread exiting
May 11 20:19:45 netdata[15284]: Cannot read ECC memory errors directory '/sys/devices/system/edac/mc'
May 11 20:19:45 netdata[15284]: Cannot read NUMA node directory '/sys/devices/system/node'
May 11 20:19:45 netdata[15284]: PROCFILE: Cannot open file '/proc/net/ip_vs_stats'
May 11 20:19:45 netdata[15284]: Cannot read sector size for device sda1 from /sys/dev/block/8:1/subsystem/sda1/../queue/hw_sector_size. Assuming 512.
May 11 20:19:45 netdata[15284]: Cannot read sector size for device sda5 from /sys/dev/block/8:5/subsystem/sda5/../queue/hw_sector_size. Assuming 512.
May 11 20:20:42 netdata[15284]: 4: failed to create new thread for web client.
May 11 20:20:42 netdata[15284]: 5: failed to create new thread for web client.
May 11 20:20:42 netdata[15284]: 6: failed to create new thread for web client.
May 11 20:20:54 netdata[15284]: 7: failed to create new thread for web client.
May 11 20:20:54 netdata[15284]: 8: failed to create new thread for web client.
May 11 20:20:54 netdata[15284]: 9: failed to create new thread for web client.
May 11 20:20:59 netdata[15284]: 2: Failed to initialize zlib. Proceeding without compression.
 
Ok partially resolved. Looks like I probably missed a message when it did the update about the installer not overwriting the existing netdata.conf file. There are some new options that get set to no in the updated configuration. I ended up adding the missing options to my original configuration and that cleared up entries of the Cannot open / Cannot read errors / and Failed to initialize zlib variety.

I was and still getting numerous failed to create new thread for web client messages though.

I copied over the netdata.conf-opkg file over the netdata.conf file and restarted netdata but still getting the web client messages.
 
Probably need to review what's logged with netdata - on resource limited devices, this could start to be a problem burning out NAND/flash....

Code: 
sfx@blaster:/var/log/netdata$ ll
total 1064
drwxr-xr-x  2 netdata root      4096 May 11 07:36 ./
drwxrwxr-x 19 root    syslog    4096 May 11 07:36 ../
-rw-r--r--  1 netdata netdata      0 May 11 07:36 access.log
-rw-r--r--  1 netdata netdata 277479 May 10 21:30 access.log.1
-rw-r--r--  1 netdata netdata  11258 Apr 30 19:14 access.log.10.gz
-rw-r--r--  1 netdata netdata  32897 Apr 29 18:00 access.log.11.gz
-rw-r--r--  1 netdata netdata  51072 Apr 28 21:58 access.log.12.gz
-rw-r--r--  1 netdata netdata  13684 Apr 28 07:19 access.log.13.gz
-rw-r--r--  1 netdata netdata   2736 Apr 26 08:46 access.log.14.gz
-rw-r--r--  1 netdata netdata   2756 May  9 08:05 access.log.2.gz
-rw-r--r--  1 netdata netdata   6426 May  8 17:29 access.log.3.gz
-rw-r--r--  1 netdata netdata  17907 May  6 23:20 access.log.4.gz
-rw-r--r--  1 netdata netdata   8622 May  6 07:34 access.log.5.gz
-rw-r--r--  1 netdata netdata  50343 May  5 05:37 access.log.6.gz
-rw-r--r--  1 netdata netdata 369617 May  4 07:35 access.log.7.gz
-rw-r--r--  1 netdata netdata    347 May  2 14:31 access.log.8.gz
-rw-r--r--  1 netdata netdata   8297 May  2 07:13 access.log.9.gz
-rw-r--r--  1 netdata netdata      0 Apr  9 08:24 debug.log
-rw-r--r--  1 netdata netdata  11773 May 11 21:57 error.log
-rw-r--r--  1 netdata netdata  86792 May 11 07:36 error.log.1
-rw-r--r--  1 netdata netdata  13292 May  3 07:35 error.log.10.gz
-rw-r--r--  1 netdata netdata   1517 May  1 07:35 error.log.11.gz
-rw-r--r--  1 netdata netdata  11294 May  1 07:35 error.log.12.gz
-rw-r--r--  1 netdata netdata   2329 Apr 29 09:24 error.log.13.gz
-rw-r--r--  1 netdata netdata   5847 Apr 29 07:35 error.log.14.gz
-rw-r--r--  1 netdata netdata   1467 May 10 10:45 error.log.2.gz
-rw-r--r--  1 netdata netdata   1497 May  9 08:17 error.log.3.gz
-rw-r--r--  1 netdata netdata   5569 May  9 07:35 error.log.4.gz
-rw-r--r--  1 netdata netdata   1472 May  7 07:35 error.log.5.gz
-rw-r--r--  1 netdata netdata   5843 May  7 07:35 error.log.6.gz
-rw-r--r--  1 netdata netdata   1459 May  5 07:36 error.log.7.gz
-rw-r--r--  1 netdata netdata   1395 May  4 07:35 error.log.8.gz
-rw-r--r--  1 netdata netdata   1893 May  3 10:54 error.log.9.gz
-rw-r--r--  1 netdata netdata      0 May 11 07:01 .keep
 
Fails to start:

Oct 25 13:13:17 netdata[8359]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_shared'
Oct 25 13:13:17 netdata[8359]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_sharing'
Oct 25 13:13:17 netdata[8359]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_unshared'
Oct 25 13:13:17 netdata[8359]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_volatile'
Oct 25 13:13:17 netdata[8359]: Cannot read ECC memory errors directory '/sys/devices/system/edac/mc'
Oct 25 13:13:17 netdata[8359]: Cannot read NUMA node directory '/sys/devices/system/node'
Oct 25 13:13:18 netdata[8359]: PROCFILE: Cannot open file '/proc/net/ip_vs_stats'
Oct 25 13:13:18 netdata[8359]: Cannot allocate 16384 bytes of memory.
Oct 25 13:13:18 netdata[8359]: EXIT: netdata prepares to exit with code 1...
Oct 25 13:13:18 netdata[8359]: EXIT: cleaning up the database...
 
I tried to run in the conf like this:
[global]
run as user = nobody

But it has to be root. Otherwise it wouldn't run for me. Threw lots of errors. Hope that helps. Just installed today.
 
wheelq said:
Fails to start:
Click to expand...

I have these errors as well.

Code: 
Jan 21 03:41:43 netdata[1220]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_shared'
Jan 21 03:41:43 netdata[1220]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_sharing'
Jan 21 03:41:43 netdata[1220]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_unshared'
Jan 21 03:41:43 netdata[1220]: PROCFILE: Cannot open file '/sys/kernel/mm/ksm/pages_volatile'
Jan 21 03:41:43 netdata[1220]: Cannot read ECC memory errors directory '/sys/devices/system/edac/mc'
Jan 21 03:41:43 netdata[1220]: Cannot read NUMA node directory '/sys/devices/system/node'

And other lines in System Log:

Code: 
Jan 21 03:41:40 netdata[1220]: CGROUP: cannot find cpuacct mountinfo. Assuming default: /sys/fs/cgroup/cpuacct
Jan 21 03:41:40 netdata[1220]: CGROUP: cannot find blkio mountinfo. Assuming default: /sys/fs/cgroup/blkio
Jan 21 03:41:40 netdata[1220]: CGROUP: cannot find memory mountinfo. Assuming default: /sys/fs/cgroup/memory
Jan 21 03:41:40 netdata[1220]: CGROUP: cannot find devices mountinfo. Assuming default: /sys/fs/cgroup/devices

Code: 
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram0', 1:0): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram0', 1:0): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram1', 1:1): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram1', 1:1): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram2', 1:2): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram2', 1:2): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram3', 1:3): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram3', 1:3): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram4', 1:4): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram4', 1:4): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram5', 1:5): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram5', 1:5): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram6', 1:6): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram6', 1:6): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram7', 1:7): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram7', 1:7): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram8', 1:8): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram8', 1:8): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram9', 1:9): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram9', 1:9): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram10', 1:10): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram10', 1:10): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram11', 1:11): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram11', 1:11): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram12', 1:12): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram12', 1:12): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram13', 1:13): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram13', 1:13): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram14', 1:14): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram14', 1:14): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram15', 1:15): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('ram15', 1:15): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop0', 7:0): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop0', 7:0): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop1', 7:1): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop1', 7:1): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop2', 7:2): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop2', 7:2): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop3', 7:3): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop3', 7:3): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop4', 7:4): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop4', 7:4): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop5', 7:5): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop5', 7:5): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop6', 7:6): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop6', 7:6): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop7', 7:7): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('loop7', 7:7): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock0', 31:0): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock0', 31:0): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock1', 31:1): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock1', 31:1): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock2', 31:2): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock2', 31:2): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock3', 31:3): Cannot open directory '/dev/mapper'. Disabling device-mapper support.
Jan 21 03:41:44 netdata[1220]: DEVICE-MAPPER ('mtdblock3', 31:3): Cannot open directory '/dev/disk/by-label'. Disabling device-mapper support.

Code: 
Jan 21 03:42:03 netdata[1220]: CGROUP: cannot read directory '/sys/fs/cgroup/cpuacct'
Jan 21 03:42:03 netdata[1220]: CGROUP: disabled cpu statistics.
Jan 21 03:42:03 netdata[1220]: CGROUP: cannot read directory '/sys/fs/cgroup/blkio'
Jan 21 03:42:03 netdata[1220]: CGROUP: disabled blkio statistics.
Jan 21 03:42:03 netdata[1220]: CGROUP: cannot read directory '/sys/fs/cgroup/memory'
Jan 21 03:42:03 netdata[1220]: CGROUP: disabled memory statistics.
Jan 21 03:42:03 netdata[1220]: CGROUP: cannot read directory '/sys/fs/cgroup/devices'
Jan 21 03:42:03 netdata[1220]: CGROUP: disabled devices statistics.
Jan 21 03:42:11 netdata[1220]: heartbeat missed 1993251 microseconds

Btw, the Update Check of Netdata doesn't seem to work for me. Maybe because of the firewall or something?
 
Last edited:
Just installed on a rt86u no problem with just netdata install (entware) - runs fine, but with a LOT of data. So I have stopped it for now, concerned it will kill the router if left running doing that much. Anyone got this going on a 86u? What's your setup?
 
Hi,

Just found Netdata and installed. Now I am looking for to set it up with the notification.
Please, do you use notification? How should be configured?

Thank you,
amplatfus
 
Awesome!
Anyone managed to set the
Code: 
memory mode = dbengine
so it actually works?
Below is my syslog after restarting the netdata service with dbengine set:
Code: 
Apr  5 18:42:25 netdata[5110]: NETDATA_SYSTEM_VIRT_DETECTION=none
Apr  5 18:42:25 netdata[5110]: NETDATA_SYSTEM_CONTAINER=unknown
Apr  5 18:42:25 netdata[5110]: NETDATA_SYSTEM_CONTAINER_DETECTION=none
Apr  5 18:42:25 netdata[5110]: CONFIG: cannot load user config '/opt/etc/netdata/stream.conf'. Will try stock config.
Apr  5 18:42:25 netdata[5110]: RRD_MEMORY_MODE_DBENGINE is not supported in this platform.
Apr  5 18:42:25 netdata[5110]: EXIT: netdata prepares to exit with code 1...
Apr  5 18:42:25 netdata[5110]: EXIT: cleaning up the database...
Apr  5 18:42:25 netdata[5110]: Cleaning up database [0 hosts(s)]...
Apr  5 18:42:25 netdata[5110]: RW_LOCK: failed to obtain read lock (code 35)
Apr  5 18:42:25 netdata[5110]: EXIT: all done - netdata is now exiting - bye bye...
 
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