[ZBX-20717] Child Process has died , no obvious error. Created: 2022 Mar 07  Updated: 2022 Mar 11  Resolved: 2022 Mar 11

Status: Closed
Project: ZABBIX BUGS AND ISSUES
Component/s: Server (S)
Affects Version/s: 6.0.1
Fix Version/s: 6.2.0alpha1

Type: Incident report Priority: Trivial
Reporter: Eliott Kennedy Assignee: Zabbix Support Team
Resolution: Duplicate Votes: 0
Labels: crash
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Zabbix 6.0.1 using docker-compose.

Attachments: Text File Zabbix Server Dump.txt    
Issue Links:
Duplicate
duplicates ZBX-20697 Zabbix server crashes Closed

 Description   

hi,

I'm trying to my Zabbix containerized I've used a compose file and tweaked it accordingly to my environment;

Docker compose;

version: '3.5'
services:
 zabbix-server:
  image: zabbix/zabbix-server-mysql:ubuntu-6.0-latest
  ports:
   - "10051:10051"
  volumes:
   - /etc/localtime:/etc/localtime:ro
   - ./zbx_env/var/lib/zabbix/export:/var/lib/zabbix/export:rw
   - ./zbx_env/var/lib/zabbix/modules:/var/lib/zabbix/modules:ro
   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   - ./zbx_env/var/lib/zabbix/ssh_keys:/var/lib/zabbix/ssh_keys:ro
   - /mnt/data/zabbix-server-mysql/alertscripts:/usr/lib/zabbix/alertscripts:ro
   - /mnt/data/zabbix-server-mysql/externalscripts:/usr/lib/zabbix/externalscripts:ro
   - /mnt/data/zabbix-server-mysql/snmptraps:/var/lib/zabbix/snmptraps:ro
   - /mnt/data/zabbix-server-mysql/mibs:/var/lib/zabbix/mibs:ro
  ulimits:
   nproc: 65535
   nofile:
    soft: 20000
    hard: 40000
  deploy:
   resources:
    limits:
      cpus: '0.70'
      memory: 6G
    reservations:
      cpus: '0.5'
      memory: 5G
  env_file:
   - ./env_vars/.env_db_mysql
   - ./env_vars/.env_srv
  secrets:
   - MYSQL_USER
   - MYSQL_PASSWORD
   - MYSQL_ROOT_USER
   - MYSQL_ROOT_PASSWORD
#   - client-key.pem
#   - client-cert.pem
#   - root-ca.pem
  depends_on:
   - mysql-server
  networks:
   zbx_net_backend:
     aliases:
      - zabbix-server
      - zabbix-server-mysql
      - zabbix-server-ubuntu-mysql
      - zabbix-server-mysql-ubuntu
   zbx_net_frontend:
#  devices:
#   - "/dev/ttyUSB0:/dev/ttyUSB0"
  stop_grace_period: 30s
  sysctls:
   - net.ipv4.ip_local_port_range=1024 65000
   - net.ipv4.conf.all.accept_redirects=0
   - net.ipv4.conf.all.secure_redirects=0
   - net.ipv4.conf.all.send_redirects=0
  labels:
   com.zabbix.description: "Zabbix server with MySQL database support"
   com.zabbix.company: "Zabbix LLC"
   com.zabbix.component: "zabbix-server"
   com.zabbix.dbtype: "mysql"
   com.zabbix.os: "ubuntu" zabbix-web-apache-mysql:
  image: zabbix/zabbix-web-apache-mysql:ubuntu-6.0-latest
  ports:
   - "8081:8080"
   - "8443:8443"
  volumes:
   - /etc/localtime:/etc/localtime:ro
   - ./zbx_env/etc/ssl/apache2:/etc/ssl/apache2:ro
   - ./zbx_env/usr/share/zabbix/modules/:/usr/share/zabbix/modules/:ro
  deploy:
   resources:
    limits:
      cpus: '0.70'
      memory: 2G
    reservations:
      cpus: '0.5'
      memory: 1G
  env_file:
   - ./env_vars/.env_db_mysql
   - ./env_vars/.env_web
  secrets:
   - MYSQL_USER
   - MYSQL_PASSWORD
#   - client-key.pem
#   - client-cert.pem
#   - root-ca.pem
  depends_on:
   - mysql-server
   - zabbix-server
  healthcheck:
   test: ["CMD", "curl", "-f", "http://localhost:8080/"]
   interval: 10s
   timeout: 5s
   retries: 3
   start_period: 30s
  networks:
   zbx_net_backend:
    aliases:
     - zabbix-web-apache-mysql
     - zabbix-web-apache-ubuntu-mysql
     - zabbix-web-apache-mysql-ubuntu
   zbx_net_frontend:
  stop_grace_period: 10s
  sysctls:
   - net.core.somaxconn=65535
  labels:
   com.zabbix.description: "Zabbix frontend on Apache web-server with MySQL database support"
   com.zabbix.company: "Zabbix LLC"
   com.zabbix.component: "zabbix-frontend"
   com.zabbix.webserver: "apache2"
   com.zabbix.dbtype: "mysql"
   com.zabbix.os: "ubuntu" zabbix-agent:
  image: zabbix/zabbix-agent:ubuntu-6.0-latest
  ports:
   - "10050:10050"
  volumes:
   - /etc/localtime:/etc/localtime:ro
   - ./zbx_env/etc/zabbix/zabbix_agentd.d:/etc/zabbix/zabbix_agentd.d:ro
   - ./zbx_env/var/lib/zabbix/modules:/var/lib/zabbix/modules:ro
   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
   - ./zbx_env/var/lib/zabbix/ssh_keys:/var/lib/zabbix/ssh_keys:ro
  deploy:
   resources:
    limits:
      cpus: '0.2'
      memory: 265M
    reservations:
      cpus: '0.1'
      memory: 128M
   mode: global
  env_file:
   - ./env_vars/.env_agent
  privileged: true
  pid: "host"
  networks:
   zbx_net_backend:
    aliases:
     - zabbix-agent
     - zabbix-agent-passive
     - zabbix-agent-ubuntu
  stop_grace_period: 5s
  labels:
   com.zabbix.description: "Zabbix agent"
   com.zabbix.company: "Zabbix LLC"
   com.zabbix.component: "zabbix-agentd"
   com.zabbix.os: "ubuntu"  zabbix-snmptraps:
  image: zabbix/zabbix-snmptraps:ubuntu-6.0-latest
  ports:
   - "162:1162/udp"
  volumes:
   - /mnt/data/zabbix-server-mysql/snmptraps:/var/lib/zabbix/snmptraps:rw
   #- snmptraps:/var/lib/zabbix/snmptraps:rw
  deploy:
   resources:
    limits:
      cpus: '0.5'
      memory: 256M
    reservations:
      cpus: '0.25'
      memory: 128M
  networks:
   zbx_net_frontend:
    aliases:
     - zabbix-snmptraps
   zbx_net_backend:
  stop_grace_period: 5s
  labels:
   com.zabbix.description: "Zabbix snmptraps"
   com.zabbix.company: "Zabbix LLC"
   com.zabbix.component: "snmptraps"
   com.zabbix.os: "ubuntu" zabbix-web-service:
  image: zabbix/zabbix-web-service:ubuntu-6.0-latest
  ports:
   - "10053:10053"
  volumes:
   - ./zbx_env/var/lib/zabbix/enc:/var/lib/zabbix/enc:ro
  cap_add:
   - SYS_ADMIN
  deploy:
   resources:
    limits:
      cpus: '0.5'
      memory: 6G
    reservations:
      cpus: '0.25'
      memory: 3G
  env_file:
   - ./env_vars/.env_web_service
  networks:
   zbx_net_backend:
    aliases:
     - zabbix-web-service
     - zabbix-web-service-ubuntu
  stop_grace_period: 5s
  labels:
   com.zabbix.description: "Zabbix web service"
   com.zabbix.company: "Zabbix LLC"
   com.zabbix.component: "web-service"
   com.zabbix.os: "ubuntu" mysql-server:
  image: mysql:8.0
  command:
   - mysqld
   - --character-set-server=utf8mb4
   - --collation-server=utf8mb4_bin
   - --default-authentication-plugin=mysql_native_password
#   - --require-secure-transport
#   - --ssl-ca=/run/secrets/root-ca.pem
#   - --ssl-cert=/run/secrets/server-cert.pem
#   - --ssl-key=/run/secrets/server-key.pem
  volumes:
   - /mnt/data/zabbix-mysql-server:/var/lib/mysql:rw
  env_file:
   - ./env_vars/.env_db_mysql
  secrets:
   - MYSQL_USER
   - MYSQL_PASSWORD
   - MYSQL_ROOT_PASSWORD
#   - server-key.pem
#   - server-cert.pem
#   - root-ca.pem
  stop_grace_period: 1m
  networks:
   zbx_net_backend:
    aliases:
     - mysql-server
     - zabbix-database
     - mysql-database db_data_mysql:
  image: busybox
  volumes:
   - /mnt/data/zabbix-mysql-server:/var/lib/mysql:rw
   #- ./zbx_env/var/lib/mysql:/var/lib/mysql:rw# elasticsearch:
#  image: elasticsearch
#  environment:
#   - transport.host=0.0.0.0
#   - discovery.zen.minimum_master_nodes=1
#  networks:
#   zbx_net_backend:
#    aliases:
#     - elasticsearchnetworks:
  zbx_net_frontend:
    driver: bridge
    driver_opts:
      com.docker.network.enable_ipv6: "false"
    ipam:
      driver: default
      config:
      - subnet: 172.16.238.0/24
  zbx_net_backend:
    driver: bridge
    driver_opts:
      com.docker.network.enable_ipv6: "false"
    internal: true
    ipam:
      driver: default
      config:
      - subnet: 172.16.239.0/24volumes:
  snmptraps:secrets:
  MYSQL_USER:
    file: ./env_vars/.MYSQL_USER
  MYSQL_PASSWORD:
    file: ./env_vars/.MYSQL_PASSWORD
  MYSQL_ROOT_USER:
    file: ./env_vars/.MYSQL_ROOT_USER
  MYSQL_ROOT_PASSWORD:
    file: ./env_vars/.MYSQL_ROOT_PASSWORD
#  client-key.pem:
#    file: ./env_vars/.ZBX_DB_KEY_FILE
#  client-cert.pem:
#    file: ./env_vars/.ZBX_DB_CERT_FILE
#  root-ca.pem:
#    file: ./env_vars/.ZBX_DB_CA_FILE
#  server-cert.pem:
#    file: ./env_vars/.DB_CERT_FILE
#  server-key.pem:
#    file: ./env_vars/.DB_KEY_FILE

When I run the command to bring it up, everything starts apart from the Zabbix server (backend), so I can access the web ui, see the DB is good, on the face of it anyway.

The error within the container doesn't really give me much to go on, I wondered if someone here may shed some light at least in the direction of where to look.

Full error:

Attached

 

Zabbix server variables;
**

ZBX_STARTPOLLERS=10
ZBX_STARTPINGERS=50
ZBX_CACHESIZE=2G
ZBX_HISTORYCACHESIZE=1G
ZBX_VALUECACHESIZE=2G
ZBX_TIMEOUT=30

 

Steps to reproduce:

  1. start docker compose
  2. watch it burn

Result:
See Full error
Expected:
Compose will completely start and server will start gathering data

Any help appreciated.

 Comments   
Comment by Alexey Pustovalov [ 2022 Mar 07 ]

Looks like that crash is similar to ZBX-20697. Could you attach log with debug mode?

Comment by Eliott Kennedy [ 2022 Mar 08 ]

I think you're right, using;

image: zabbix/zabbix-server-mysql:ubuntu-6.0.0

makes the thing boot.

I have no idea how to tell docker-compose to debug. I thought what I sent was a complete memory dump. 

I will have a look and let you know.

Comment by Dmitrijs Lamberts (Inactive) [ 2022 Mar 11 ]

Closing as duplicate of ZBX-20697

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