[bitnami/bitnami-docker-solr] Unable to start in SolrCloud mode

[gkulkarni32]

Description

Steps to reproduce the issue:

1. Created a new solr helm chart having statefulset with the solr docker image
2. statefulset created successfully and service also exposed externally.
3. got the external IP for the solr service

Describe the results you received:

When I check the UI from the external IP that I received above, I do not see the collections dropdown. Core is created using the environement parameter i had provided. But I'm unable to create a new collection.

Describe the results you expected:

I expect to see the solr collections dropdown as shown below. This is not showing:

Additional information you deem important (e.g. issue happens only occasionally):

Version

• Output of docker version:

Client: Docker Engine - Community
 Cloud integration: 1.0.4
 Version:           20.10.0
 API version:       1.41
 Go version:        go1.13.15
 Git commit:        7287ab3
 Built:             Tue Dec  8 18:55:43 2020
 OS/Arch:           darwin/amd64
 Context:           default
 Experimental:      true

Server: Docker Engine - Community
 Engine:
  Version:          20.10.0
  API version:      1.41 (minimum version 1.12)
  Go version:       go1.13.15
  Git commit:       eeddea2
  Built:            Tue Dec  8 18:58:04 2020
  OS/Arch:          linux/amd64
  Experimental:     false
 containerd:
  Version:          v1.4.3
  GitCommit:        269548fa27e0089a8b8278fc4fc781d7f65a939b
 runc:
  Version:          1.0.0-rc92
  GitCommit:        ff819c7e9184c13b7c2607fe6c30ae19403a7aff
 docker-init:
  Version:          0.19.0
  GitCommit:        de40ad0

• Output of docker info:

Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.4.2-docker)
  scan: Docker Scan (Docker Inc., v0.5.0)

Server:
 Containers: 10
  Running: 0
  Paused: 0
  Stopped: 10
 Images: 55
 Server Version: 20.10.0
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 269548fa27e0089a8b8278fc4fc781d7f65a939b
 runc version: ff819c7e9184c13b7c2607fe6c30ae19403a7aff
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
 Kernel Version: 4.19.121-linuxkit
 Operating System: Docker Desktop
 OSType: linux
 Architecture: x86_64
 CPUs: 8
 Total Memory: 1.941GiB
 Name: docker-desktop
 ID: AUWP:DEDG:TRTU:M3TW:JNIU:ODLK:3GTV:SDKS:X6DT:LZDF:XDU7:U7Q3
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 HTTP Proxy: gateway.docker.internal:3128
 HTTPS Proxy: gateway.docker.internal:3129
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false
 Product License: Community Engine

• Output of docker-compose version (if applicable):

(paste your output here)

Additional environment details (AWS, VirtualBox, Docker for MAC, physical, etc.):

[rafariossaa]

Hi, This image is running solr not solr cloud. Collections are a concept that only exists in solr cloud. You can see in the screenshots you provided that there is not "cloud" icon in the UI.

However, you can connect to the pod and run:

$ solr create gettingstarted
$ post -c gettingstarted /opt/bitnami/solr/example/exampledocs/*.xml

It will create example documents in the gettingstarted core, later you cat retrieve them by browsing: http://localhost:8983/solr/gettingstarted/select?q=*%3A*

[gkulkarni32]

Thanks @rafariossaa , Understood. Couple more questions:

1. It worked fine when I created the cores from the pod, but when i tried to do the same from UI, I get the following error:

2. Is there a way to use a zookeeper with this? Can we pass a parameter to this container if we have set up one with zookeeper helm chart?

[rafariossaa]

Hi,

1- It worked fine when I created the cores from the pod, but when i tried to do the same from UI, I get the following error:

As you can see in the form, you need to have the instanceDir and dataDir created before you can add the core. The instance directory need to have a structure and some files (solrconfig and schema.xml) created there. Could you take a look to this ? Also the create_core command indicates:

$ solr create_core -help

Usage: solr create_core [-c core] [-d confdir] [-p port] [-V]

When a configSet is used, this can be run from remote (non-Solr) hosts.  If pointing at a non-configSet directory, this
must be run from the host that you wish to create the core on

  -c <core>     Name of core to create

  -d <confdir>  Configuration directory to copy when creating the new core, built-in options are:

      _default: Minimal configuration, which supports enabling/disabling field-guessing support
      sample_techproducts_configs: Example configuration with many optional features enabled to
         demonstrate the full power of Solr

      If not specified, default is: _default

      Alternatively, you can pass the path to your own configuration directory instead of using
      one of the built-in configurations, such as: bin/solr create_core -c mycore -d /tmp/myconfig

  -p <port>     Port of a local Solr instance where you want to create the new core
                  If not specified, the script will search the local system for a running
                  Solr instance and will use the port of the first server it finds.

  -V            Enable more verbose output.

As you can see -d is used as source to copy from, but form the UI you don't have that option and it is needed to provide the files.

2- Is there a way to use a zookeeper with this? Can we pass a parameter to this container if we have set up one with zookeeper helm chart?

You can indicate the zookeeper nodes by using the environment variable ZK_HOST. You can get more information here. But take into account that you will also need to start solr with -e cloud parameter.

[gkulkarni32]

Hi @rafariossaa If having an external zookeeper works in SolrCloud mode, I would prefer to use Cloud mode.

Tried the below 2 things:

1. Started the solr nodes in normal mode. And then got into the container to start solr in 'SolrCloud' mode with external zookeeper. This works and starts another solr instance within the pod at a different port. solr start -e cloud -z test-solr-zookeeper-headless:2181

2. Added the same command in the pod so the pod starts solr in 'Cloud' mode. This did not work as the script is interactive and needs some additional parameters to be set (like no of shards, no of nodes etc). Additionally this needs a different port to start SolrCloud (works like a different instance of solr within the pod)

So it looks like we will need to modify the run.sh script to start Solr in Cloud mode, basically a modification to the image.

Thanks Geeta

[rafariossaa]

Could you give it a try to this ?

• Use the following compose.
• Start it with: docker-compose up
• Enter the container with: docker exec -it bitnami-docker-solr_solr_1 bash
• Create initial data in zookeeper: /opt/bitnami/solr/bin/solr zk mkroot /solr -z zk1:2181,zk2:2181,zk3:2181
• Start solr cloud: "/opt/bitnami/solr/bin/solr" start -cloud -p 8983 -z zk1:2181,zk2:2181,zk3:2181/solr -d /opt/bitnami/solr/server/ -f
• Browse to http://localhost:8983

$ cat docker-compose.yml 


version: '2'
services:
  solr:
    entrypoint: tail -f /dev/null
    image: 'docker.io/bitnami/solr:8-debian-10'
    environment:
      - SOLR_CORE=my_core
      - ZK_HOST="zk1:2181,zk2:2181,zk3:2181/solr"
    ports:
      - '8983:8983'
    volumes:
      - 'solr_data:/bitnami'
  zk1:
    image: 'docker.io/bitnami/zookeeper:3-debian-10'
    ports:
      - '2181'
    volumes:
      - zookeeper_data:/bitnami
    environment:
      - ZOO_SERVER_ID=1
      - ALLOW_ANONYMOUS_LOGIN=yes
      - ZOO_SERVERS=zk1:2888:3888,zk2:2888:3888,zk3:2888:3888
  zk2:
    image: 'docker.io/bitnami/zookeeper:3-debian-10'
    ports:
      - '2181'
    volumes:
      - zookeeper2_data:/bitnami
    environment:
      - ZOO_SERVER_ID=2
      - ALLOW_ANONYMOUS_LOGIN=yes
      - ZOO_SERVERS=zk1:2888:3888,zk2:2888:3888,zk3:2888:3888
  zk3:
    image: 'docker.io/bitnami/zookeeper:3-debian-10'
    ports:
      - '2181'
    volumes:
      - zookeeper3_data:/bitnami
    environment:
      - ZOO_SERVER_ID=3
      - ALLOW_ANONYMOUS_LOGIN=yes
      - ZOO_SERVERS=zk1:2888:3888,zk2:2888:3888,zk3:2888:3888
volumes:
  zookeeper_data:
    driver: local
  zookeeper2_data:
    driver: local
  zookeeper3_data:
    driver: local
  solr_data:
    driver: local

This would be just a workaround, as you can see I am overriding the entrypoint of the solr image. This initialization for solr cloud should be handled by the image or maybe creating a specific image for solr cloud.

[gkulkarni32]

Thanks @rafariossaa As discussed, will wait for the bitnami image with Cloud mode.

Thanks Geeta

[rafariossaa]

You are welcome. We have opened an internal task for this. We will come back as soon as we have news.

[gkulkarni32]

Sure, will wait for that update.

[fmulero]

Not sure if it was addressed in bitnami/charts#4951 but we are going to transfer this issue to bitnami/containers. @rafariossaa Could check it?

In order to unify the approaches followed in Bitnami containers and Bitnami charts, we are moving some issues in bitnami/bitnami-docker-<container> repositories to bitnami/containers.

Please follow bitnami/containers to keep you updated about the latest bitnami images.

More information here: https://blog.bitnami.com/2022/07/new-source-of-truth-bitnami-containers.html