This error is coming in the application which is using solrj to communicate to the solr full stacktrace is
Request processing failed; nested exception is com.gdn.solr620.org.apache. solr.common.SolrException: Could not load collection from ZK: productCollection org.springframework.web.util.NestedServletException: Request processing failed; nested exception is com.gdn.solr620.org.apache.solr.common. SolrException: Could not load collection from ZK: productCollection at org. springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet .java:973) ~[spring-webmvc-4.1.0.RELEASE.jar:4.1.0.RELEASE] at org. springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java: 863) ~[spring-webmvc-4.1.0.RELEASE.jar:4.1.0.RELEASE] at javax.servlet.http. HttpServlet.service(HttpServlet.java:648) ~[servlet-api.jar:na] at org. springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java: 837) ~[spring-webmvc-4.1.0.RELEASE.jar:4.1.0.RELEASE] at javax.servlet.http. HttpServlet.service(HttpServlet.java:729) ~[servlet-api.jar:na] at org. apache.catalina.core.ApplicationFilterChain.internalDoFilter( ApplicationFilterChain.java:230) [catalina.jar:8.5.4] at org.apache.catalina .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) [ catalina.jar:8.5.4] at org.apache.tomcat.websocket.server.WsFilter.doFilter( WsFilter.java:52) ~[tomcat-websocket.jar:8.5.4] at org.apache.catalina.core. ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192) [ catalina.jar:8.5.4] at org.apache.catalina.core.ApplicationFilterChain. doFilter(ApplicationFilterChain.java:165) [catalina.jar:8.5.4] at org. springframework.web.filter.CharacterEncodingFilter.doFilterInternal( CharacterEncodingFilter.java:88) ~[spring-web-4.1.0.RELEASE.jar:4.1.0. RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter( OncePerRequestFilter.java:107) [spring-web-4.1.0.RELEASE.jar:4.1.0.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter( ApplicationFilterChain.java:192) [catalina.jar:8.5.4] at org.apache.catalina .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) [ catalina.jar:8.5.4] at com.gdn.x.seoul.web.ui.filter. ContentSecurityPolicyFilter.doFilter(ContentSecurityPolicyFilter.java:64) ~[ classes/:na] at org.apache.catalina.core.ApplicationFilterChain. internalDoFilter(ApplicationFilterChain.java:192) [catalina.jar:8.5.4] at org.apache.catalina.core.ApplicationFilterChain.doFilter( ApplicationFilterChain.java:165) [catalina.jar:8.5.4] at com.gdn.x.seoul.web .ui.filter.RedirectionFilter.doFilter(RedirectionFilter.java:61) [classes/: na] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter( ApplicationFilterChain.java:192) [catalina.jar:8.5.4] at org.apache.catalina .core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) [ catalina.jar:8.5.4] at com.gdn.x.seoul.web.util.AccessLogFilter.doFilter( AccessLogFilter.java:83) [seoul-common-web-4.11.3.jar:na] at org.apache. catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain .java:192) [catalina.jar:8.5.4] at org.apache.catalina.core. ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165) [catalina. jar:8.5.4] at org.springframework.security.web.FilterChainProxy$ VirtualFilterChain.doFilter(FilterChainProxy.java:330) [spring-security-web- 3.2.5.RELEASE.jar:3.2.5.RELEASE] at org.springframework.security.web.access. intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java: 118) [spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE] at org. springframework.security.web.access.intercept.FilterSecurityInterceptor. doFilter(FilterSecurityInterceptor.java:84) [spring-security-web-3.2.5. RELEASE.jar:3.2.5.RELEASE] at org.springframework.security.web. FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) [ spring-security-web-3.2.5.RELEASE.jar:3.2.5.RELEASE] at org.springframework. security.web.access.ExceptionTranslationFilter.doFilter( ExceptionTranslationFilter.java:113) [spring-security-web-3.2.5.RELEASE.jar: 3.2.5.RELEASE] at org.springframework.security.web.FilterChainProxy$ VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web- 3.2.5.RELEASE.jar:3.2.5.RELEASE] at org.springframework.security.web. authentication.AnonymousAuthenticationFilter.doFilter( AnonymousAuthenticationFilter.java:113) [spring-security-web-3.2.5.RELEASE. jar:3.2.5.RELEASE] at org.springframework.security.web.FilterChainProxy$ VirtualFilterChain.doFilter(FilterChainProxy.java:342) [spring-security-web- 3.2.5.RELEASE.jar:3.2.5.RELEASE] at org.springframework.security.web. servletapi.SecurityContextHolderAwareRequestFilter.doFilter( SecurityContextHolderAwareRequestFilter.java:154) [spring-security-web-3.2.5 .RELEASE.jar:3.2.5.RELEASE] Top command images are at https://www.dropbox.com/sh/vxorykk8tmb6amb/AABYIcFuRyfSnlkS6I-Tr5HNa?dl=0
