I'm using Nexus OSS 3.0.2-02 in a docker container and the /nexus-data directory is and NFS mount (Amazon EFS). This version of Nexus uses Elasticsearch 2.2 which has a bug with handling large filesystems. Check references below:
https://discuss.elastic.co/t/elasticsearch-with-amazon-elastic-file-system/55867/5
https://github.com/elastic/elasticsearch/pull/20527
https://bugs.openjdk.java.net/browse/JDK-8162520
https://www.elastic.co/guide/en/elasticsearch/reference/2.4/release-notes-2.4.1.html
Any chance you can update nexus bundles org.apache.servicemix.bundles.elasticsearch and org.sonatype.nexus.elasticsearch to use elasticsearch 2.4.1 ?