Can't Get Elasticsearch Plugin to Work with Grails 3 - spring

Question

I've tried to hook up Elasticsearch plugin ('org.grails.plugins:elasticsearch:1.4.1') with a Grails 3.1.9 project without any luck.
I've also uploaded a simple application in github to demonstrate the issue (https://github.com/jackiebai/testEs)
The above sample testing app only has 1 domain class called Person:
class Person {
String name
static searchable = true
static constraints = {
}
}
The corresponding service class PersonService is used to save and index the Person data:
import grails.transaction.Transactional
#Transactional
class PersonService {
def addPerson(Person person){
person.save()
person.index()
}
def addPerson(String name) {
Person p = new Person(name:name)
addPerson(p)
}
}
I've also added a couple of lines of code in the BootStrap.groovy so that some data will get inserted into the default hibernate db when the application starts:
class BootStrap {
def personService
def init = { servletContext ->
personService.addPerson("Person One")
personService.addPerson("John Smith")
}
def destroy = {
}
}
The application.yml variable settings for the development environment look like below:
environments:
development:
dataSource:
dbCreate: create-drop
url: jdbc:h2:mem:devDb;MVCC=TRUE;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
elasticSearch:
client:
mode: node
transport.sniff: true
bulkIndexOnStartup: true
datastoreImpl: hibernateDatastore
Additional dependencies and bootRun code block were included in the build.gradle by following the plugin user guide (http://noamt.github.io/elasticsearch-grails-plugin/docs/index.html)
dependencies {
...
compile 'org.grails.plugins:elasticsearch:1.4.1'
compile 'org.elasticsearch:elasticsearch:5.4.1'
...
}
bootRun{
jvmArgs = ['-Des.path.home=/Users/myname/elasticsearch-5.4.1']
}
Unfortunately the application failed to run under my osx 10.11.6,java 1.8.0_91 environment with below errors:
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'elasticSearchClient': FactoryBean threw exception on object creation; nested exception is java.lang.NoClassDefFoundError: org/elasticsearch/mapper/attachments/MapperAttachmentsPlugin
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1590)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:317)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
... 34 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/elasticsearch/mapper/attachments/MapperAttachmentsPlugin
at grails.plugins.elasticsearch.ClientNodeFactoryBean.getObject(ClientNodeFactoryBean.groovy:207)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168)
... 39 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.elasticsearch.mapper.attachments.MapperAttachmentsPlugin
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 41 common frames omitted

Answer 1

According to documentation you should use v1.2.0
https://github.com/noamt/elasticsearch-grails-plugin

Answer 2

I believe version 1.4.1 is broken. You can try 2.4.0.RC1 with Grails 3.3+ but you need to add dependency to mapper-attachments and specify elasticsearch.version for Spring Boot:
ext['elasticsearch.version'] = '5.4.1'
dependencies {
compile 'org.grails.plugins:elasticsearch:2.4.0.RC1'
runtime 'org.elasticsearch.plugin:mapper-attachments:2.4.6'
}
See issue#198