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Comment: Update for development moving to newer Ubuntu versions.

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You will also need docker installed on your system. I recommend docker-ce on Ubuntu 1622.04. See the Jenkins bootstrap script or the Docker documentation for steps to install docker-ce.

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Code Block
languagebash
./buildall.sh -release -skiptests -ninja -noclean -notests


ninja docker_images


Info
You may want to set USE_CDP_HIVE in bin/impala-config-local.sh to build containers with Hive 3 support


Info

Note - in future it would be nice if we could have a flag to buildall.sh to also build this target.

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Code Block
$ docker image ls
REPOSITORY                                                                            TAG                 IMAGE ID            CREATED             SIZE
impala_base                                                                           latest              ffb1347a05b7        2 weeks ago         2.91GB
impalad_coord_exec                                                                    latest              dbea9fb26675        4 weeks ago         2.39GB
impalad_coordinator                                                                   latest              bd213630acce        4 weeks ago         2.39GB
statestored                                                                           latest              59372e24a8f7        4 weeks ago         2.39GB
catalogd                                                                              latest              d56a5adf86d0        4 weeks ago         2.39GB
impalad_executor                                                                      latest              a735455d0c83        4 weeks ago         2.39GB


Pushing Images to a Repository

./docker/push-images.sh is a script that can push the built images to a docker repository. See that script's help for more information.

Running Dockerized Minicluster

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Once those services are up, you should be able to run dockerised Impala. If you previously had an Impala minicluster running, you will must kill any non-dockerised Impala processes so they are not listening on the same ports used by the dockerized daemons. If the cluster starts up successfully, you should be able to run some queries via impala-shell.

Code Block
start-impala-cluster.py --kill
start-impala-cluster.py --docker_network=impala-cluster-network
impala-shell.sh

Note that querying any existing tables is likely to fail because "localhost" is baked into a lot of metadata. You will need to load, or re-load data before running end-to-end tests.

You can see the running docker containers with "docker ps"

Code Block
$ docker ps
CONTAINER ID        IMAGE                COMMAND                  CREATED             STATUS              PORTS                                                                          NAMES
af295db2f818        impalad_coord_exec   "/opt/impala/bin/dae…"   2 minutes ago       Up 2 minutes        0.0.0.0:21002->21000/tcp, 0.0.0.0:21052->21050/tcp, 0.0.0.0:25002->25000/tcp   impala-test-cluster-impala-cluster-network-impalad_coord_exec-2
57011eda4ded        impalad_coord_exec   "/opt/impala/bin/dae…"   2 minutes ago       Up 2 minutes        0.0.0.0:21001->21000/tcp, 0.0.0.0:21051->21050/tcp, 0.0.0.0:25001->25000/tcp   impala-test-cluster-impala-cluster-network-impalad_coord_exec-1
7a3caac8ccc0        impalad_coord_exec   "/opt/impala/bin/dae…"   2 minutes ago       Up 2 minutes        0.0.0.0:21000->21000/tcp, 0.0.0.0:21050->21050/tcp, 0.0.0.0:25000->25000/tcp   impala-test-cluster-impala-cluster-network-impalad_coord_exec-0
e54887a3bc2c        catalogd             "/opt/impala/bin/dae…"   2 minutes ago       Up 2 minutes        0.0.0.0:25020->25020/tcp                                                       impala-test-cluster-impala-cluster-network-catalogd
57cd35033b15        statestored          "/opt/impala/bin/dae…"   2 minutes ago       Up 2 minutes        0.0.0.0:25010->25010/tcp                                                       impala-test-cluster-impala-cluster-network-statestored

Running Tests

Automated end-to-end tests are run with this job: https://jenkins.impala.io/job/ubuntu-1620.04-dockerised-tests/. https://github.com/apache/impala/blob/master/bin/jenkins/dockerized-impala-bootstrap-and-test.sh bootstraps ubuntu16.04 ubuntu from scratch and runs the tests.

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  • The Impala debug pages are mostly exposed on the same ports as the regular minicluster, i.e. localhost:25000, localhost:25001, localhost:25002, localhost:25010, localhost:25020. This is achieved by mapping from the default webserver ports inside the container to the desired ports outside the container. I.e. all of the Impala daemons are exposing their webserver on port 25000 inside the container.
  • If you want to look at logs or other state in a running container, you can use "docker exec" to run a bash process inside a container (using the name or ID from "docker ps"). Inside the container is a very stripped down Ubuntu environment, so it may be missing many commands you're accustomed to!
Code Block
docker exec -it impala-test-cluster-impala-cluster-network-catalogd /bin/bash
cat /tmp/catalogd.INFO

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