1.9. Nouveau Server Installation¶
New in version 4.0.
CouchDB can build and query full-text search indexes using an external Java service that embeds Apache Lucene. Typically, this service is installed on the same host as CouchDB and communicates with it over the loopback network.
Nouveau server is runtime-compatible with Java 11 or higher.
1.9.1. Enable Nouveau¶
You need to enable nouveau in CouchDB configuration;
[nouveau] enable = true
1.9.2. Installation of Binary Packages¶
The nouveau server code is contained in a single
jar file that ships with a compatible
CouchDB release, named
To start the nouveau server:
java -jar /path/to/server-$version-dist.jar server /path/to/nouveau.yaml
We ship a basic
nouveau.yaml configuration with useful defaults;
that file for details.
maxIndexesOpen: 100 commitIntervalSeconds: 30 idleSeconds: 60 rootDir: target/indexes
As a DropWizard project you can also use the many configuration options that it supports. See configuration reference.
By default Nouveau will attempt a clean shutdown if sent a
signal, committing any outstanding index updates, completing any
in-progress segment merges, and finally closes all indexes. This is
not essential and you may safely kill the JVM without letting it do
this, though any uncommitted changes are necessarily lost. Once the
JVM is started again this indexing work will be attempted again.