[ 
https://issues.apache.org/jira/browse/ATLAS-1472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15827602#comment-15827602
 ] 

Vimal Sharma commented on ATLAS-1472:
-------------------------------------

[~ssainath] I tried to reproduce the error but Atlas doesn't go into 
irrecoverable state. I get the below exception when trying to create second tag 
with the same name :
{code}
2017-01-18 13:46:26,763 ERROR - [qtp785451259-27 - 
16574858-7c51-496f-8874-5750cd4810c8:] ~ graph rollback due to exception  
(GraphTransactionInterceptor:58)
org.apache.atlas.exception.AtlasBaseException: Given type Sample already exists
        at 
org.apache.atlas.repository.store.graph.v1.AtlasClassificationDefStoreV1.preCreate(AtlasClassificationDefStoreV1.java:71)
        at 
org.apache.atlas.repository.store.graph.v1.AtlasClassificationDefStoreV1.create(AtlasClassificationDefStoreV1.java:95)
        at 
org.apache.atlas.repository.store.graph.AtlasTypeDefGraphStore.createClassificationDef(AtlasTypeDefGraphStore.java:335)
        at 
org.apache.atlas.GraphTransactionInterceptor.invoke(GraphTransactionInterceptor.java:51)
        at 
org.apache.atlas.web.rest.TypesREST.createClassificationDef(TypesREST.java:228)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at 
com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
        at 
com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
        at 
com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
        at 
com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
        at 
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
        at 
com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
        at 
com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
        at 
com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
        at 
com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
        at 
com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
        at 
com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
        at 
com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:286)
        at 
com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:276)
        at 
com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:181)
        at 
com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91)
        at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:85)
        at 
org.apache.atlas.web.filters.AuditFilter.doFilter(AuditFilter.java:77)
        at 
com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:82)
        at 
com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120)
        at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:135)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
        at 
org.apache.atlas.web.filters.AtlasAuthorizationFilter.doFilter(AtlasAuthorizationFilter.java:154)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
        at 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.apache.atlas.web.filters.AtlasCSRFPreventionFilter$ServletFilterHttpInteraction.proceed(AtlasCSRFPreventionFilter.java:234)
        at 
org.apache.atlas.web.filters.AtlasCSRFPreventionFilter.handleHttpInteraction(AtlasCSRFPreventionFilter.java:176)
        at 
org.apache.atlas.web.filters.AtlasCSRFPreventionFilter.doFilter(AtlasCSRFPreventionFilter.java:189)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.apache.atlas.web.filters.AtlasAuthenticationFilter.doFilter(AtlasAuthenticationFilter.java:325)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.apache.atlas.web.filters.AtlasKnoxSSOAuthenticationFilter.doFilter(AtlasKnoxSSOAuthenticationFilter.java:118)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
        at 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
        at 
org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
        at 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
        at 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
        at 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
        at 
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
        at 
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
        at 
org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
        at 
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
        at 
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
        at 
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
        at 
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
        at 
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
        at 
org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
        at 
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
        at org.eclipse.jetty.server.Server.handle(Server.java:499)
        at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310)
        at 
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
        at 
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
        at 
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
        at java.lang.Thread.run(Thread.java:745)
{code}

> Atlas went into irrecoverable state after creating 2 tags with same name 
> accidentally.
> --------------------------------------------------------------------------------------
>
>                 Key: ATLAS-1472
>                 URL: https://issues.apache.org/jira/browse/ATLAS-1472
>             Project: Atlas
>          Issue Type: Bug
>          Components:  atlas-core
>            Reporter: Sharmadha Sainath
>            Priority: Critical
>         Attachments: redefine_tag_exception.txt
>
>
> Atlas was slow and while creating a tag , I clicked "create" button twice 
> which created the same tag twice. From then on , no queries are working.
> Attaching the exception stack trace.



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