# Opal with Docker: Rock container start-up takes long and prone to crashes

**URL:** <https://datashield.discourse.group/t/opal-with-docker-rock-container-start-up-takes-long-and-prone-to-crashes/757>\
**Category:** Developer support\
**Created:** [12 April 2023 14:20 UTC](https://datashield.discourse.group/t/opal-with-docker-rock-container-start-up-takes-long-and-prone-to-crashes/757 "2023-04-12T14:20:33Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![aakkoc](https://yyz2.discourse-cdn.com/free1/user_avatar/datashield.discourse.group/aakkoc/32/200_2.png) [@aakkoc](https://datashield.discourse.group/u/aakkoc)\
**Post date:** [12 April 2023 14:20 UTC](https://datashield.discourse.group/t/opal-with-docker-rock-container-start-up-takes-long-and-prone-to-crashes/757/1 "2023-04-12T14:20:33Z")

</div>

Hi,

For the last few months we have been deploying new Opal nodes through [docker images](https://opaldoc.obiba.org/en/latest/admin/installation.html#docker-image-installation). I have noticed that the start-up of new machines can take quite long.

The main bottleneck seems to be Rock. In fact, just today, the rock container crashed after a whole hour. How can we troubleshoot this? See below for Docker Compose Config.

Rock container log:

```auto
[Info] ROCK_HOME=/srv
First run setup...
[Info] Applying config...
[Info] Node properties
[Warn] No server public address: self-registration not activated
[Warn] Setting default node id: rserver
[Info] Setting default node cluster: default
[Info] Setting empty node tags
[Info] Consul properties
[Info] No Consul server: self-registration not activated
[Warn] No Consul token: self-registration not safe
[Info] Opal properties
[Info] No Opal server: self-registration not activated
[Warn] No Opal token: self-registration not valid
[Info] R properties
[Info] No R repositories, setting default
[Info] Users properties
[Info] No administrator configured!
[Info] No manager configured!
[Info] No user configured!
JAVA_OPTS=-Xmx2G
ROCK_HOME=/srv
ROCK_DIST=/usr/share/rock

     ( (
     )\ ) ) )\ )
    (()/( ( /( (()/(
     /(_)) ( ( )\()) /(_))
    (_)) )\ )\ ((_)\ (_))
2023-04-12T13:15:04.410948095Z | \ ((_) ((_) | |(_) | _ \
    | / / _ \ / _| | / / | /
    |_|_\ \ ___/ \__ | |_\_\ |_|_\

       .:: OBiBa Rock R server ::.

#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (safepoint.cpp:388), pid=127, tid=0x00000040415ab700
# guarantee(PageArmed == 0) failed: invariant
#
# JRE version: OpenJDK Runtime Environment (8.0_342-b07) (build 1.8.0_342-b07)
# Java VM: OpenJDK 64-Bit Server VM (25.342-b07 mixed mode linux-amd64 compressed oops)
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /srv/hs_err_pid127.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
qemu: uncaught target signal 6 (Aborted) - core dumped
/usr/share/rock/bin/rock: line 54: 127 Aborted java $JAVA_OPTS -cp "$CLASSPATH" -DROCK_HOME="${ROCK_HOME}" -DROCK_DIST=${ROCK_DIST} -DROCK_LOG=${ROCK_LOG} org.springframework.boot.loader.JarLauncher $@

```

Full Docker Compose Configuration:

```auto
version: '3'
services:
  opal:
    platform: linux/x86_64
    image: obiba/opal:4.5 #January 2023
    ports:
      - "8843:8443" #Ports opal is exposed on
      - "8880:8080" #Ports opal is exposed on
    links:
      - rock
      - mongo
      - mysqldata
    environment:
      - JAVA_OPTS=-Xms1G -Xmx8G -XX:+UseG1GC
      - OPAL_ADMINISTRATOR_PASSWORD=[PASSWORD]
      - MONGO_HOST=mongo
      - MONGO_PORT=27017
      - MYSQLDATA_HOST=mysqldata
      - MYSQLDATA_USER=opal
      - MYSQLDATA_PASSWORD=[MYSQLDATA PWD]
      - ROCK_HOSTS=rock:8085
    volumes:
      - ./vol:/srv
  mongo:
    platform: linux/x86_64
    image: mongo:4.2
  mysqldata:
    platform: linux/x86_64
    image: mysql:5
    environment:
      - MYSQL_DATABASE=opal
      - MYSQL_ROOT_PASSWORD=[MYSQL ROOT PWD]
      - MYSQL_USER=opal
      - MYSQL_PASSWORD=[MYSQL PWD]
  rock:
    platform: linux/x86_64
    image: datashield/rock-base:6.2-R4.2 #Oct 2022, as recommended by yannick marcon https://datashield.discourse.group/t/ssl-connection-to-localhost-opal-fails/693/2

```