nextcloud-docs/solr/content.md

What is Solr?

Solr is highly reliable, scalable and fault tolerant, providing distributed indexing, replication and load-balanced querying, automated failover and recovery, centralized configuration and more. Solr powers the search and navigation features of many of the world's largest internet sites.

Learn more on Apache Solr homepage and in the Apache Solr Reference Guide.

wikipedia.org/wiki/Apache_Solr

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How to use this Docker image

To run a single Solr server:

$ docker run --name my_solr -d -p 8983:8983 -t solr

Then with a web browser go to http://localhost:8983/ to see the Admin Console (adjust the hostname for your docker host).

To use Solr, you need to create a "core", an index for your data. For example:

$ docker exec -it --user=solr my_solr bin/solr create_core -c gettingstarted

In the web UI if you click on "Core Admin" you should now see the "gettingstarted" core.

If you want to load some example data:

$ docker exec -it --user=solr my_solr bin/post -c gettingstarted example/exampledocs/manufacturers.xml

In the UI, find the "Core selector" popup menu and select the "gettingstarted" core, then select the "Query" menu item. This gives you a default search for ":" which returns all docs. Hit the "Execute Query" button, and you should see a few docs with data. Congratulations!

To learn more about Solr, see the Apache Solr Reference Guide.

Distributed Solr

You can also run a distributed Solr configuration, with Solr nodes in separate containers, sharing a single ZooKeeper server:

Run ZooKeeper, and define a name so we can link to it:

$ docker run --name zookeeper -d -p 2181:2181 -p 2888:2888 -p 3888:3888 jplock/zookeeper

Run two Solr nodes, linked to the zookeeper container:

$ docker run --name solr1 --link zookeeper:ZK -d -p 8983:8983 \
      solr \
      bash -c '/opt/solr/bin/solr start -f -z $ZK_PORT_2181_TCP_ADDR:$ZK_PORT_2181_TCP_PORT'

$ docker run --name solr2 --link zookeeper:ZK -d -p 8984:8983 \
      solr \
      bash -c '/opt/solr/bin/solr start -f -z $ZK_PORT_2181_TCP_ADDR:$ZK_PORT_2181_TCP_PORT'

Create a collection:

$ docker exec -i -t solr1 /opt/solr/bin/solr create_collection \
        -c collection1 -shards 2 -p 8983

Then go to http://localhost:8983/solr/#/~cloud (adjust the hostname for your docker host) to see the two shards and Solr nodes.

About this repository

This repository is available on github.com/docker-solr/docker-solr, and the official build is on the Docker Hub.

This repository is based on (and replaces) makuk66/docker-solr, and has been sponsored by Lucidworks.