[jira] [Created] (ATLAS-628) Starting two Atlas instances at the same time causes exceptions in HA mode.

["Hemanth Yamijala (JIRA)" <ji...@apache.org>]

Hemanth Yamijala created ATLAS-628:
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             Summary: Starting two Atlas instances at the same time causes exceptions in HA mode.
                 Key: ATLAS-628
                 URL: https://issues.apache.org/jira/browse/ATLAS-628
             Project: Atlas
          Issue Type: Bug
            Reporter: Hemanth Yamijala
            Priority: Blocker


Configure HA parameters for Atlas. Use SOLR and HBase as backends. From two terminals start two instances of Atlas at roughly the same time. This causes failure exceptions and at least one instance does not start up properly (in either active or passive mode). The relevant stack trace is:

{code}
Caused by: java.lang.ExceptionInInitializerError
    at org.apache.atlas.repository.graph.GraphBackedMetadataRepository.<clinit>(GraphBackedMetadataRepository.java:67)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:278)
    at com.google.inject.internal.cglib.core.$ReflectUtils.defineClass(ReflectUtils.java:386)
    at com.google.inject.internal.cglib.core.$AbstractClassGenerator.create(AbstractClassGenerator.java:219)
    at com.google.inject.internal.cglib.proxy.$Enhancer.createHelper(Enhancer.java:377)
    at com.google.inject.internal.cglib.proxy.$Enhancer.createClass(Enhancer.java:317)
    at com.google.inject.internal.ProxyFactory$ProxyConstructor.<init>(ProxyFactory.java:252)
    at com.google.inject.internal.ProxyFactory.create(ProxyFactory.java:178)
    at com.google.inject.internal.ConstructorInjectorStore.createConstructor(ConstructorInjectorStore.java:90)
    at com.google.inject.internal.ConstructorInjectorStore.access$000(ConstructorInjectorStore.java:29)
    at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:37)
    at com.google.inject.internal.ConstructorInjectorStore$1.create(ConstructorInjectorStore.java:33)
    at com.google.inject.internal.FailableCache$1.load(FailableCache.java:37)
    at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3599)
    at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2379)
    at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2342)
    at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2257)
    at com.google.common.cache.LocalCache.get(LocalCache.java:4000)
    at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:4004)
    at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4874)
    at com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4880)
    at com.google.inject.internal.FailableCache.get(FailableCache.java:48)
    at com.google.inject.internal.ConstructorInjectorStore.get(ConstructorInjectorStore.java:50)
    at com.google.inject.internal.ConstructorBindingImpl.initialize(ConstructorBindingImpl.java:136)
    at com.google.inject.internal.InjectorImpl.initializeJitBinding(InjectorImpl.java:547)
    at com.google.inject.internal.InjectorImpl.createJustInTimeBinding(InjectorImpl.java:884)
    at com.google.inject.internal.InjectorImpl.createJustInTimeBindingRecursive(InjectorImpl.java:805)
    at com.google.inject.internal.InjectorImpl.getJustInTimeBinding(InjectorImpl.java:282)
    at com.google.inject.internal.InjectorImpl.getBindingOrThrow(InjectorImpl.java:214)
    at com.google.inject.internal.InjectorImpl.getInternalFactory(InjectorImpl.java:890)
    at com.google.inject.internal.FactoryProxy.notify(FactoryProxy.java:46)
    at com.google.inject.internal.ProcessedBindingData.runCreationListeners(ProcessedBindingData.java:50)
    at com.google.inject.internal.InternalInjectorCreator.initializeStatically(InternalInjectorCreator.java:134)
    ... 24 more
Caused by: java.lang.IllegalArgumentException: Database has already been initialized but not frozen
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:92)
    at com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.<init>(GraphDatabaseConfiguration.java:1294)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:93)
    at com.thinkaurelius.titan.core.TitanFactory.open(TitanFactory.java:73)
    at org.apache.atlas.repository.graph.TitanGraphProvider.getGraphInstance(TitanGraphProvider.java:105)
    at org.apache.atlas.repository.graph.GraphHelper.<clinit>(GraphHelper.java:64)
{code}



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