[Xymon] [External] semaphore errors

[Rothlisberger, John R.]

Is there a fix for this?

We just upgraded one of our servers from Ubuntu 14.04LTS to 16.04LTS and these started showing up - and with it all clients go purple.  This seems to be happening every 30-60 minutes and the only fix is to restart the Xymon server.

Using 4.3.21.

Thanks,
John

-----Original Message-----
From: Xymon <xymon-bounces at xymon.com> On Behalf Of Stef Coene
Sent: Wednesday, October 24, 2018 7:13 AM
To: xymon at xymon.com
Subject: [External] [Xymon] semaphore errors

Hi,

We are getting these errors on 2 xymon servers running 4.3.21 and 4.3.28.

Any steps I can do to debug and/or prevent this error?
The only solution is a restart of the xymon daemons.


2018-10-24 12:06:21.110407 semop failed, Invalid argument
2018-10-24 12:06:21.110456 Dropping message due to semaphore error

ipcs

------ Message Queues --------
key        msqid      owner      perms      used-bytes   messages

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status

0x00000000 0          root       644        80         2

0x00000000 32769      root       644        16384      2

0x00000000 65538      root       644        280        2

0x01013343 2818051    xymon      600        10485760   2

0x02013343 2850820    xymon      600        10485760   2

0x03013343 2883589    xymon      600        10485760   2

0x04013343 2916358    xymon      600        10485760   2

0x05013343 2949127    xymon      600        262144     1

0x06013343 2981896    xymon      600        32768      1

0x07013343 3014665    xymon      600        10485760   2

0x08013343 3047434    xymon      600        10485760   2

0x09013343 3080203    xymon      600        131072     3

0xfa0101b9 1277964    root       666        30435368   2

0xfa0101bd 1310733    root       666        30435368   1


------ Semaphore Arrays --------
key        semid      owner      perms      nsems
0x000000a7 98304      root       600        1
0x00000000 7995393    www-data   600        1
0x00000000 8028162    www-data   600        1
0x00000000 1769475    www-data   600        1


Stef
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