OPENHABIAN on RPI 2 response time / stop communication

Dear all,

it is realy strange… My Openhabian Installation was working for approx 4-8 weeks very good via app and also via apple home. Since two week I can not reach it via App (both). Via browser i can reach it, but very very slow… Same issue vie WinScp and or Putty.

Putty for example, if I call “TOP” it Shows the expeted Output but freezes directly.


Tasks: 100 total,   1 running,  62 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.1 us,  0.2 sy,  0.0 ni, 99.6 id,  0.1 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem :  1000192 total,    98048 free,   422588 used,   479556 buff/cache
KiB Swap:   102396 total,   102396 free,        0 used.   474196 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
32166 openhab+  20   0    9728   3240   2784 R   1.6  0.3   0:00.36 top
  387 openhab   20   0  491708 353276  14588 S   0.7 35.3 792:29.81 java
27034 root      20   0       0      0      0 I   0.3  0.0   0:02.64 kworker/2:0
    1 root      20   0    9796   6164   4824 S   0.0  0.6   0:07.57 systemd
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.14 kthreadd
    4 root       0 -20       0      0      0 I   0.0  0.0   0:00.00 kworker/0:+
    6 root       0 -20       0      0      0 I   0.0  0.0   0:00.00 mm_percpu_+
    7 root      20   0       0      0      0 S   0.0  0.0   0:03.79 ksoftirqd/0
    8 root      20   0       0      0      0 I   0.0  0.0   0:35.28 rcu_sched
    9 root      20   0       0      0      0 I   0.0  0.0   0:00.00 rcu_bh
   10 root      rt   0       0      0      0 S   0.0  0.0   0:00.04 migration/0
   11 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/0
   12 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/1
   13 root      rt   0       0      0      0 S   0.0  0.0   0:00.03 migration/1
   14 root      20   0       0      0      0 S   0.0  0.0   0:06.30 ksoftirqd/1
   16 root       0 -20       0      0      0 I   0.0  0.0   0:00.00 kworker/1:+
   17 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/2

With ESC I can get out but it might take 2-4 Minutes.

Dose anyone have an hint for me?

Sometimes Java jump up to 122%

top - 23:18:14 up 2 days,  6:55,  1 user,  load average: 0.17, 0.25, 0.26
Tasks:  98 total,   1 running,  57 sleeping,   0 stopped,   0 zombie
%Cpu(s): 29.4 us,  1.8 sy,  0.0 ni, 68.7 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem :  1000192 total,   124200 free,   396512 used,   479480 buff/cache
KiB Swap:   102396 total,   102396 free,        0 used.   500272 avail Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
  387 openhab   20   0  491708 353308  14588 S 122.8 35.3 795:38.39 java
32480 openhab+  20   0    9728   3232   2776 R   1.0  0.3   0:01.29 top
  536 root      20   0   28540   5536   4136 S   0.3  0.6   0:56.86 nmbd
27034 root      20   0       0      0      0 I   0.3  0.0   0:02.86 kworker/2:0
    1 root      20   0    9796   6164   4824 S   0.0  0.6   0:07.60 systemd
    2 root      20   0       0      0      0 S   0.0  0.0   0:00.14 kthreadd
    4 root       0 -20       0      0      0 I   0.0  0.0   0:00.00 kworker/0:+
    6 root       0 -20       0      0      0 I   0.0  0.0   0:00.00 mm_percpu_+
    7 root      20   0       0      0      0 S   0.0  0.0   0:03.80 ksoftirqd/0
    8 root      20   0       0      0      0 I   0.0  0.0   0:35.47 rcu_sched
    9 root      20   0       0      0      0 I   0.0  0.0   0:00.00 rcu_bh
   10 root      rt   0       0      0      0 S   0.0  0.0   0:00.04 migration/0
   11 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/0
   12 root      20   0       0      0      0 S   0.0  0.0   0:00.00 cpuhp/1
   13 root      rt   0       0      0      0 S   0.0  0.0   0:00.03 migration/1
   14 root      20   0       0      0      0 S   0.0  0.0   0:06.32 ksoftirqd/1
   16 root       0 -20       0      0      0 I   0.0  0.0   0:00.00 kworker/1:+

Even a reboot or shutdown of openhabian dosent help against the delays (Putty/Winscp)

 Release = Raspbian GNU/Linux 9 (stretch)
##         Kernel = Linux 4.14.32-v7+
##       Platform = Raspberry Pi 2 Model B Rev 1.1
##         Uptime = 2 day(s). 7:0:54
##      CPU Usage = 9.27 % avg over 4 cpu(s)  (4 core(s) x 1 socket(s))
##       CPU Load = 1m: 0.10, 5m: 0.18, 15m: 0.23
##         Memory = Free: 0.11GB (12%), Used: 0.83GB (88%), Total: 0.95GB
##           Swap = Free: 0.09GB (100%), Used: 0.00GB (0%), Total: 0.09GB
##           Root = Free: 4.74GB (68%), Used: 2.14GB (32%), Total: 7.21GB
##        Updates = 15 apt updates available.
##       Sessions = 2 sessions
##      Processes = 106 running processes of 32768 maximum processes

THX