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rrdtool high cpu usage

Hi,

This was fine until last night. Suddenly my Sophos Home firewall started to make noise due to high cpu usage

When i logged in to the console i could see rrdtool is consuming 100% cpu

top - 18:36:12 up  3:04,  1 user,  load average: 10.92, 10.53, 9.80
Tasks: 206 total,  12 running, 192 sleeping,   0 stopped,   2 zombie
Cpu(s): 96.7%us,  3.3%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   8004172k total,  3830528k used,  4173644k free,    63832k buffers
Swap:  4194300k total,        0k used,  4194300k free,  1642392k cached

  PID USER      PR  NI  VIRT  RES  SHR S   %CPU %MEM    TIME+  COMMAND
30413 root      20   0 13148 4828 3488 R     39  0.1  80:15.51 rrdtool
13131 root      20   0 13148 4824 3488 R     38  0.1  12:58.73 rrdtool
11229 root      20   0 13148 4824 3488 R     37  0.1  20:25.11 rrdtool
 7952 root      20   0 13148 4828 3488 R     37  0.1  38:55.45 rrdtool
18133 root      20   0 13148 4824 3488 R     36  0.1 110:18.69 rrdtool
23917 root      20   0 13148 4828 3488 R     36  0.1  95:15.67 rrdtool
 3027 root      20   0 13148 4824 3488 R     36  0.1  66:04.84 rrdtool
 9569 root      20   0 13148 4828 3488 R     36  0.1  28:52.32 rrdtool
 6094 root      20   0 13148 4828 3488 R     36  0.1  50:58.51 rrdtool
16320 root      20   0 13148 4824 3488 R     35  0.1   0:25.25 rrdtool
14795 root      20   0 13148 4824 3488 R     33  0.1   6:23.59 rrdtool
 5339 root      19  -1 34692 2676 1200 S      0  0.0   0:05.41 ulogd
 7601 httpprox  20   0 1503m 942m  12m S      0 12.1   0:59.32 httpproxy
13095 root      20   0 15764 9.9m 2680 S      0  0.1   0:00.16 create_rrd_grap
    1 root      20   0  3976  580  508 S      0  0.0   0:02.16 init

then i ran ps aux and saw the following:

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1  0.0  0.0   3976   580 ?        Ss   15:32   0:02 init [3]  
root         2  0.0  0.0      0     0 ?        S    15:32   0:00 [kthreadd]
root         3  0.0  0.0      0     0 ?        S    15:32   0:00 [ksoftirqd/0]
root         5  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/0:0H]
root         7  0.0  0.0      0     0 ?        S    15:32   0:00 [migration/0]
root         8  0.0  0.0      0     0 ?        S    15:32   0:00 [rcu_bh]
root         9  0.0  0.0      0     0 ?        S    15:32   0:02 [rcu_sched]
root        10  0.0  0.0      0     0 ?        S    15:32   0:00 [migration/1]
root        11  0.0  0.0      0     0 ?        S    15:32   0:00 [ksoftirqd/1]
root        12  0.0  0.0      0     0 ?        S    15:32   0:00 [kworker/1:0]
root        13  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/1:0H]
root        14  0.0  0.0      0     0 ?        S    15:32   0:00 [migration/2]
root        15  0.0  0.0      0     0 ?        S    15:32   0:00 [ksoftirqd/2]
root        16  0.0  0.0      0     0 ?        S    15:32   0:00 [kworker/2:0]
root        17  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/2:0H]
root        18  0.0  0.0      0     0 ?        S    15:32   0:00 [migration/3]
root        19  0.0  0.0      0     0 ?        S    15:32   0:00 [ksoftirqd/3]
root        20  0.0  0.0      0     0 ?        S    15:32   0:00 [kworker/3:0]
root        21  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/3:0H]
root        22  0.0  0.0      0     0 ?        S<   15:32   0:00 [khelper]
root       133  0.0  0.0      0     0 ?        S<   15:32   0:00 [writeback]
root       136  0.0  0.0      0     0 ?        S<   15:32   0:00 [bioset]
root       137  0.0  0.0      0     0 ?        S<   15:32   0:00 [crypto]
root       139  0.0  0.0      0     0 ?        S<   15:32   0:00 [kblockd]
root       400  0.0  0.0      0     0 ?        S    15:32   0:00 [khubd]
root       408  0.0  0.0      0     0 ?        S<   15:32   0:00 [edac-poller]
root       513  0.0  0.0      0     0 ?        S    15:32   0:03 [kworker/1:1]
root       532  0.0  0.0      0     0 ?        S    15:32   0:00 [kswapd0]
root       596  0.0  0.0      0     0 ?        SN   15:32   0:00 [khugepaged]
root       597  0.0  0.0      0     0 ?        S    15:32   0:00 [fsnotify_mark]
root      1236  0.0  0.0      0     0 ?        S<   15:32   0:00 [deferwq]
root      1312  0.0  0.0      0     0 ?        S<   15:32   0:00 [nvme]
root      1327  0.0  0.0      0     0 ?        S<   15:32   0:00 [ata_sff]
root      1357  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_0]
root      1360  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_1]
root      1363  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_2]
root      1366  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_3]
root      1369  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_4]
root      1372  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_5]
root      1375  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_6]
root      1378  0.0  0.0      0     0 ?        S    15:32   0:00 [scsi_eh_7]
root      1385  0.0  0.0      0     0 ?        S    15:32   0:00 [kworker/u8:6]
root      1386  0.0  0.0      0     0 ?        S    15:32   0:00 [kworker/u8:7]
root      2699  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/1:1H]
root      2711  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/0:1H]
root      2712  0.0  0.0      0     0 ?        S    15:32   0:02 [kworker/2:2]
root      2713  0.0  0.0      0     0 ?        S    15:32   0:01 [kworker/3:2]
root      2795  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/2:1H]
root      2796  0.0  0.0      0     0 ?        S<   15:32   0:00 [kworker/3:1H]
root      2798  0.0  0.0      0     0 ?        S    15:32   0:00 [jbd2/sda6-8]
root      2799  0.0  0.0      0     0 ?        S<   15:32   0:00 [ext4-rsv-conver]
root      2861  0.0  0.0   4712  1104 ?        S<s  15:32   0:00 /sbin/udevd --daemon
root      2965  0.0  0.0   4464   608 ?        S    16:50   0:00 /usr/sbin/cron
root      2981  0.0  0.1  15764 10172 ?        Ss   16:50   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root      3027 61.7  0.0  13148  4824 ?        R    16:50  66:44 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root      3232  0.1  0.0      0     0 ?        SN   15:32   0:13 [kipmi0]
root      3306  0.0  0.0      0     0 ?        S    15:32   0:00 [kworker/0:2]
root      3343  0.0  0.0      0     0 ?        S    15:32   0:00 [jbd2/sda1-8]
root      3344  0.0  0.0      0     0 ?        S<   15:32   0:00 [ext4-rsv-conver]
root      3345  0.0  0.0      0     0 ?        S    15:32   0:00 [jbd2/sda5-8]
root      3346  0.0  0.0      0     0 ?        S<   15:32   0:00 [ext4-rsv-conver]
root      3347  0.0  0.0      0     0 ?        S    15:32   0:00 [jbd2/sda7-8]
root      3348  0.0  0.0      0     0 ?        S<   15:32   0:00 [ext4-rsv-conver]
root      3349  0.0  0.0      0     0 ?        S    15:32   0:00 [jbd2/sda8-8]
root      3350  0.0  0.0      0     0 ?        S<   15:32   0:00 [ext4-rsv-conver]
root      3621  0.0  0.0   3988   812 ?        S    15:32   0:00 /usr/sbin/acpid -c /etc/acpi/events -s /var/run/acpid.socket
200       3634  0.0  0.0   4660   628 ?        Ss   15:32   0:00 /bin/dbus-daemon --system
201       3862  0.0  0.0  17228  4652 ?        Ssl  15:32   0:00 /usr/sbin/hald --daemon=yes
root      3863  0.0  0.0   5900  1284 ?        S    15:32   0:00 hald-runner
root      3885  0.0  0.0   8456  1964 ?        S    15:32   0:00 hald-addon-input: Listening on /dev/input/event0 /dev/input/event2 /dev/input/event3 /dev/input/event4
root      3900  0.0  0.0   8468  1968 ?        S    15:32   0:00 /usr/lib/hal/hald-addon-cpufreq
201       3901  0.0  0.0   8164  2136 ?        S    15:32   0:00 hald-addon-acpi: listening on acpid socket /var/run/acpid.socket
root      3931  0.0  0.0   8316  4380 ?        Ss   15:32   0:01 /sbin/haveged -w 1024 -v 0
root      3955  0.0  0.5  61900 44632 ?        Ss   15:32   0:02 confd [master]
root      3956  0.0  0.0   3956   536 ?        S    15:32   0:00 logger -p daemon.debug -t confd[3955]
root      3970  0.0  0.0   3956   396 ?        Ss   15:32   0:00 /usr/local/bin/confd-queuer
root      3982  0.0  0.0  10124  5932 ?        Ss   15:32   0:00 confd-qrunner.pl
root      3999  0.0  0.0  11024  5496 ?        S    15:32   0:01 /usr/local/bin/sysmond
root      4035  0.0  0.1  19436 14028 ?        S    15:32   0:00 /var/aua/aua.bin
root      4036  0.0  0.0   3956   244 ?        S    15:32   0:00 logger -p daemon.debug -t aua[4035]
root      4067  0.0  0.5  62032 41676 ?        S    15:32   0:00 confd [listener]
root      4280  0.0  0.1  16348 10440 ?        S    15:32   0:00 /usr/local/bin/notifier.plx -d
root      4313  0.0  2.8 267760 227612 ?       Ssl  15:32   0:04 /var/oculusd/oculusd 25000
rrdcache  4333  0.0  0.0 183780  1564 ?        Ssl  15:32   0:01 /usr/bin/rrdcached -l unix:/var/run/rrdcached/socket -m 777 -b /var/log/reporting/rrd -j /var/log/reporting/rrd -p /var/run/rrdcached/rrdcached.pid -B -F
at        4364  0.0  0.0   4404   360 ?        Ss   15:32   0:00 /usr/sbin/atd
postgres  4429  0.0  0.7 1137384 56968 ?       S    15:32   0:00 /usr/pgsql92-64/bin/postgres -D /var/storage/pgsql92/data
postgres  4431  0.0  0.2 1138056 18320 ?       Ss   15:32   0:00 postgres: checkpointer process                           
postgres  4432  0.0  0.0 1137900 7552 ?        Ss   15:32   0:00 postgres: writer process                                 
postgres  4433  0.0  0.2 1137900 17048 ?       Ss   15:32   0:00 postgres: wal writer process                             
postgres  4434  0.0  0.0 1139012 2416 ?        Ss   15:32   0:00 postgres: autovacuum launcher process                    
postgres  4435  0.0  0.0  26928   824 ?        Ss   15:32   0:00 postgres: archiver process   last was 000000010000002E0000008A
postgres  4436  0.0  0.0  27208  1120 ?        Ss   15:32   0:00 postgres: stats collector process                        
root      4492  0.1  2.3 194284 186296 ?       S    15:32   0:19 /var/mdw/mdw.plx
root      4501  0.0  0.0   3956   536 ?        S    15:32   0:00 logger -p daemon.debug -t middleware[4492]
root      4510  0.0  0.0      0     0 ?        S<   15:32   0:00 [redd]
root      4647  0.0  0.0   2292    24 ?        S    15:32   0:00 /usr/sbin/vlmcsd-x64-musl-static
root      4651  0.0  0.0   3980   408 ?        Ss   15:32   0:00 runsvdir -P /etc/service log: ...........................................................................................................................................................................................................................................................................................................................................................................................................
root      4652  0.0  0.0   4484   824 tty1     Ss+  15:32   0:00 /sbin/mingetty --no-hostname tty1
root      4653  0.0  0.0   4484   828 tty2     Ss+  15:32   0:00 /sbin/mingetty --no-hostname tty2
root      4654  0.0  0.0   4484   804 tty3     Ss+  15:32   0:00 /sbin/mingetty --no-hostname tty3
root      4655  0.0  0.0   4484   796 tty4     Ss+  15:32   0:00 /sbin/mingetty --no-hostname tty4
root      4656  0.0  0.0   3836   248 ?        Ss   15:32   0:00 runsv selfmonng
root      4657  0.1  0.1  14148 10356 ?        S    15:32   0:21 /usr/local/bin/selfmonng.plx
root      4689  0.0  0.0  13500  7444 ?        S    15:32   0:00 [timewarp check]
root      4857  0.0  0.0   3964   480 ?        Ss   15:32   0:00 /usr/local/bin/nwd
root      4873  0.0  0.0   4720   980 ?        S<   15:32   0:00 /sbin/udevd --daemon
root      4874  0.0  0.0   4720  1080 ?        S<   15:32   0:00 /sbin/udevd --daemon
root      5109  0.0  0.0   4424   796 ?        Ss   15:32   0:00 /usr/sbin/cron
root      5166  0.0  0.0   7568  1052 ?        Ss   15:32   0:00 /usr/sbin/sshd -f /etc/ssh/sshd_config
root      5189  0.0  0.1  14624 10216 ?        Ss   15:32   0:05 dns-resolver.plx
root      5293  0.0  0.0   7660  2352 ?        Ss   15:32   0:00 /usr/sbin/openvpn --config /etc/openvpn/openvpn.conf --writepid /var/run/openvpn.pid
root      5339  0.0  0.0  34692  2676 ?        S<sl 15:32   0:05 /usr/sbin/ulogd -c /etc/ulogd.conf -d
postgres  5342  0.0  0.3 1144132 26888 ?       Ss   15:32   0:04 postgres: reporting reporting [local] idle               
root      5402  0.0  0.0   5856   408 ?        S    15:32   0:00 supervising syslog-ng                     
root      5403  0.0  0.0  10608  5080 ?        Ss   15:32   0:03 /usr/sbin/syslog-ng -f /etc/syslog-ng.conf
root      5619  0.0  0.1  16464 11244 ?        S    15:32   0:00 ddclient - reading from dynamicdns.park-your-domain.com port 443
root      5621  0.0  0.1  19732 13968 ?        S    15:32   0:02 /usr/bin/perl /usr/local/bin/reporter/pfilter-reporter.pl
root      5622  0.0  0.1  20520 14720 ?        S    15:32   0:00 /usr/bin/perl /usr/local/bin/reporter/admin-reporter.pl
root      5623  0.0  0.0  31204  1736 ?        Sl   15:32   0:00 /usr/local/bin/reporter/vpn-reporter.pl
root      5624  0.0  0.0  30808  1992 ?        Sl   15:32   0:00 /usr/local/bin/reporter/websec-reporter.pl
root      5625  0.0  0.1  18752 12864 ?        S    15:32   0:00 /usr/bin/perl /usr/local/bin/reporter/mailsec-reporter.pl
root      5626  0.0  0.1  18928 13120 ?        S    15:32   0:00 /usr/bin/perl /usr/local/bin/reporter/ips-reporter.pl
root      5628  0.0  0.0  30688  1584 ?        Sl   15:32   0:00 /usr/local/bin/reporter/websec-reporter.pl -e
root      5629  0.0  0.0   4548  1144 ?        S    15:32   0:08 /usr/local/bin/reporter/waf-reporter
postgres  5652  0.0  0.0 1141296 5412 ?        Ss   15:32   0:00 postgres: smtp smtp [local] idle                         
postgres  5653  0.0  0.0 1141296 5372 ?        Ss   15:32   0:00 postgres: smtp smtp [local] idle                         
postgres  5657  0.0  0.1 1145496 13664 ?       Ss   15:32   0:00 postgres: reporting reporting [local] idle               
postgres  5658  0.0  0.0 1141300 4888 ?        Ss   15:32   0:00 postgres: reporting reporting [local] idle               
postgres  5684  0.0  0.0 1141396 5872 ?        Ss   15:32   0:00 postgres: hotspot hotspot [local] idle                   
root      5710  0.0  0.0  11464   788 ?        Ssl  15:32   0:00 /usr/local/bin/service_monitor
root      5762  0.0  0.6  79972 49432 ?        Ssl  15:32   0:03 /usr/sbin/named -4
postgres  5768  0.0  0.0 1141396 5808 ?        Ss   15:32   0:00 postgres: hotspot hotspot [local] idle                   
root      5823  0.0  0.0   6976  2232 ?        Ss   15:32   0:01 /usr/sbin/irqd
root      5848  0.0  0.0   7288  1420 ?        Ss   15:32   0:00 /usr/sbin/dhcrelay -q -i eth4.30 -i eth4.5 172.16.30.1
root      6017  0.0  0.4  78564 36868 ?        Ss   15:32   0:05 smtpd [master]
root      6021  0.0  0.0   4464   608 ?        S    17:05   0:00 /usr/sbin/cron
root      6026  0.0  0.3  42464 27176 ?        S    15:32   0:00 smtpd [queue manager]
root      6027  0.0  0.3  42464 26676 ?        S    15:32   0:00 smtpd [sandbox_watcher]
postgres  6028  0.0  0.0 1141388 6224 ?        Ss   15:32   0:00 postgres: smtp smtp 127.0.0.1(35343) idle                
root      6054  0.0  0.1  15764 10168 ?        Ss   17:05   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
smtp      6080  0.0  0.0  10960  2820 ?        S    15:32   0:01 /bin/exim -DINPUT -bdf
postgres  6082  0.0  0.0 1141288 5388 ?        Ss   15:32   0:00 postgres: smtp smtp 127.0.0.1(35346) idle                
root      6094 55.5  0.0  13148  4828 ?        R    17:05  51:38 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root      6187  0.0  0.0  12384  4728 ?        Ss   15:32   0:00 /bin/httpd -f /etc/httpd/httpd.conf
root      6189  0.0  0.0   3956   536 ?        S    15:32   0:00 /bin/logger -t httpd -p local6.notice
wwwrun    6190  0.0  0.0  12296  1696 ?        S    15:32   0:00 /bin/httpd -f /etc/httpd/httpd.conf
root      6232  0.0  0.0   9628  3568 ?        Ss   15:32   0:00 /usr/sbin/dhcpd -cf /etc/dhcpd.conf eth4 eth4.100
root      6243  0.0  2.8 263132 229796 ?       Ssl  15:32   0:04 /usr/bin/cssd -d
root      6461  0.0  0.0   8408  1152 ?        Ss   15:32   0:00 /usr/libexec/postfix/master -w
root      6744  0.0  0.0   7588  2000 ?        Ss   15:32   0:00 /usr/sbin/dhclient -nw -cf /etc/eth5.conf -lf /var/db/eth5.leases -pf /var/run/dhclient_eth5.pid eth5
root      6808  0.0  0.0  15776  1852 ?        Ss   15:32   0:00 /sbin/ntpd
postgres  6939  0.0  0.0 1141312 5416 ?        Ss   15:33   0:00 postgres: sandbox sandbox [local] idle                   
postgres  6940  0.0  0.0 1141392 6060 ?        Ss   15:33   0:00 postgres: sandbox sandbox [local] idle                   
postgres  7218  0.0  0.0 1141456 6892 ?        Ss   15:35   0:05 postgres: smtp smtp 127.0.0.1(35407) idle                
root      7249  0.0  0.0      0     0 ?        Z    15:35   0:00 [aua.bin] <defunct>
810       7574  0.0  0.2 134696 17076 ?        Ss   15:36   0:01 /var/chroot-http/opt/ws/bin/urid --chroot /var/chroot-http --user 810 --admin /opt/ws/conf/admin.urilist --admin-ip /opt/ws/conf/adminip.kvlist
810       7601  0.5 12.0 1539088 965348 ?      Ssl  15:36   0:59 /var/chroot-http/usr/bin/httpproxy -f -c /var/chroot-http -u httpproxy
wwwrun    7848  0.0  0.0  12664  3916 ?        S    15:37   0:00 /bin/httpd -f /etc/httpd/httpd.conf
wwwrun    7852  0.0  0.0  12664  3916 ?        S    15:37   0:00 /bin/httpd -f /etc/httpd/httpd.conf
root      7864  0.0  0.0   4464   608 ?        S    17:20   0:00 /usr/sbin/cron
root      7899  0.0  0.1  15764 10168 ?        Ss   17:20   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root      7919  0.0  0.2  28212 16632 ?        Ss   15:37   0:00 /usr/apache/bin/httpd -k start
root      7952 50.7  0.0  13148  4828 ?        R    17:20  39:36 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root      8560  0.0  0.0   3956   536 ?        S    15:37   0:00 /bin/logger -p local1.info -t httpd
nobody    8727  0.0  0.2 459124 19952 ?        Sl   15:37   0:06 /usr/apache/bin/httpd -k start
postgres  8836  0.0  0.1 1143796 8120 ?        Ss   15:37   0:00 postgres: reporting reporting [local] idle               
root      9509  0.0  0.0   4464   608 ?        S    17:35   0:00 /usr/sbin/cron
root      9536  0.0  0.1  15764 10168 ?        Ss   17:35   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root      9569 46.8  0.0  13148  4828 ?        R    17:35  29:32 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root     11140  0.0  0.0   4464   608 ?        S    17:50   0:00 /usr/sbin/cron
root     11181  0.0  0.1  15764 10172 ?        Ss   17:50   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     11229 43.8  0.0  13148  4824 ?        R    17:50  21:05 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
afcd     12825  0.0  0.3  72824 31972 ?        S<sl 18:02   0:00 /usr/sbin/afcd
postfix  12838  0.0  0.0   8528  2188 ?        S    18:02   0:00 qmgr -l -t unix -u -c
postfix  12839  0.0  0.0   8472  2248 ?        S    18:02   0:00 pickup -l -t unix -u -c
root     13062  0.0  0.0   4464   608 ?        S    18:05   0:00 /usr/sbin/cron
root     13095  0.0  0.1  15764 10164 ?        Ss   18:05   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     13131 41.3  0.0  13148  4824 ?        R    18:05  13:39 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root     14715  0.0  0.0   4464   608 ?        S    18:20   0:00 /usr/sbin/cron
root     14756  0.0  0.1  15764 10172 ?        Ss   18:20   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     14795 39.1  0.0  13148  4824 ?        R    18:20   7:03 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root     16219  0.0  0.0   4464   608 ?        S    18:35   0:00 /usr/sbin/cron
root     16254  0.0  0.1  15764 10172 ?        Ss   18:35   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     16320 35.7  0.0  13148  4824 ?        R    18:35   1:05 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root     16455  0.0  0.0   8084  3272 ?        Ss   18:35   0:00 sshd: loginuser [priv]                   
100      16483  0.0  0.0   8220  1500 ?        S    18:35   0:00 sshd: loginuser@pts/0                    
100      16501  0.0  0.0   7104  2072 pts/0    Ss   18:35   0:00 -bash
postfix  16509  0.0  0.0   8480  2184 ?        S    18:35   0:00 tlsmgr -l -t unix -u -c
root     16510  0.0  0.0  10260  2756 pts/0    S    18:35   0:00 sudo su
root     16515  0.0  0.0   6404  1188 pts/0    S    18:35   0:00 su
root     16528  0.0  0.0   7088  2172 pts/0    S    18:35   0:00 bash
root     16736  3.6  0.0      0     0 ?        Z    18:38   0:00 [confd.plx] <defunct>
root     16744  0.0  0.0   4916  1016 pts/0    R+   18:38   0:00 ps aux
root     18056  0.0  0.0   4464   608 ?        S    16:05   0:00 /usr/sbin/cron
root     18086  0.0  0.1  15764 10168 ?        Ss   16:05   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     18133 72.5  0.0  13148  4824 ?        R    16:05 110:59 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root     18341  0.0  0.0      0     0 ?        S    16:05   0:02 [kworker/0:1]
root     23842  0.0  0.0   4464   608 ?        S    16:20   0:00 /usr/sbin/cron
root     23875  0.0  0.1  15764 10168 ?        Ss   16:20   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     23917 69.4  0.0  13148  4828 ?        R    16:20  95:55 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000
root     30358  0.0  0.0   4464   608 ?        S    16:35   0:00 /usr/sbin/cron
root     30383  0.0  0.1  15764 10168 ?        Ss   16:35   0:00 /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily
root     30413 65.7  0.0  13148  4828 ?        R    16:35  80:55 /usr/bin/rrdtool graph /var/log/reporting/images/cpuusage_daily.png_tmp --imgformat=PNG --alt-y-grid --rigid --lower-limit=0 --height=120 --width=500 --start -1d --title Cpu Usage (Daily) --x-grid MINUTE:30:HOUR:2:HOUR:2:0:%R --vertical-label=Percent DEF:a=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:AVERAGE DEF:x=/var/log/reporting/rrd/cpuusage.rrd:usage_pct:MAX CDEF:cdefa=a CDEF:cdefx=x VDEF:lsta=a,LAST VDEF:avga=a,AVERAGE VDEF:maxx=x,MAXIMUM AREA:cdefa#008680:Cpu usage (%) GPRINT:lsta:Current\:%8.2lf %s GPRINT:avga:Average\:%8.2lf %s GPRINT:maxx:Maximum\:%8.2lf %s\n LINE0.5:100#000000

Killing the rrdtool process didn't do anything as a second after another rrdtool process spawned. i had to kill all /usr/local/bin/create_rrd_graphs.plx --mode monthly,daily and then was able to pkill rrdtool. Few minutes later it was back draining my cpu so i had no choice but rename /usr/local/bin/create_rrd_graphs.plx to /usr/local/bin/create_rrd_graphs.plx.old. Today i let it run for three hours but it didnt finish whatever it was doing. I then cleand up the /var/log/reporting/rrd folder (as per https://community.sophos.com/utm-firewall/astaroorg/f/utm-9-2-beta/65432/9-190-bug-high-cpu-load-after-up2date) but it didnt make any difference.

I didn't do any updates on the firewall so i have no idea what could cause this. my CPU is "Intel(R) Xeon(R) CPU E3-1230 v5 @ 3.40GHz" so i don't think it is struggling with RRD graphs.



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