ssh into the elasticsearch container identify the id of the index that seem to be broken run /usr/share/elasticsearch/jdk/bin/java -cp lucene-core*.jar -ea:org.apache.lucene… org.apache.lucene.index.CheckIndex /usr/share/elasticsearch/data/nodes/0/indices/your-id/0/index/ -verbose -exorcise This can be dangerous but is the only option if you assume that the data is lost anyway. either running 3. repairs broken segments or it shows as in my case No problems were detected with this index. If it shows "no problems detected" just go to the index folder and remove any file starting with corrupted_* restart elasticsearch the whole cluster turns green