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Hi ,

We are using elasticsearch7 to store the data from liferay and it is not an embedded elastic search.

and we are using below versions of clients to connect to the elastic search.

elasticsearch-rest-high-level-client:6.2.0 and 

below is the issue

2021-10-25 06:30:01.123 ERROR [fileinstall-C:/liferay-dxp-digital-enterprise-tomcat-7.0-sp7/liferay-dxp-digital-enterprise-7.0-sp7/osgi/modules][ExampleElastic:97] [ExampleElastic.portlet.ExampleElasticPortlet(2621)] Error during instantiation of the implementation object
java.util.ServiceConfigurationError: org.apache.logging.log4j.spi.Provider: Provider org.apache.logging.log4j.core.impl.Log4jProvider not a subtype
        at java.util.ServiceLoader.fail(ServiceLoader.java:239)
        at java.util.ServiceLoader.access$300(ServiceLoader.java:185)
        at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:376)
        at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
        at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
        at org.apache.logging.log4j.util.ProviderUtil.loadProviders(ProviderUtil.java:101)
        at org.apache.logging.log4j.util.ProviderUtil.<init>(ProviderUtil.java:67)
        at org.apache.logging.log4j.util.ProviderUtil.lazyInit(ProviderUtil.java:142)
        at org.apache.logging.log4j.util.ProviderUtil.hasProviders(ProviderUtil.java:126)
        at org.apache.logging.log4j.LogManager.<clinit>(LogManager.java:89)
        at org.elasticsearch.common.logging.ESLoggerFactory.getLogger(ESLoggerFactory.java:45)
        at org.elasticsearch.common.logging.ESLoggerFactory.getLogger(ESLoggerFactory.java:53)
        at org.elasticsearch.common.logging.Loggers.getLogger(Loggers.java:38)
        at org.elasticsearch.action.search.SearchRequest.<clinit>(SearchRequest.java:61)
        at ExampleElastic.portlet.ExampleElasticPortlet.<clinit>(ExampleElasticPortlet.java:49)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.lang.Class.newInstance(Class.java:442)

and using liferay-dxp-enterprise-7.0-sp7.

any solutions would be appreciated.

Thanks,

mahesh