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Posted to dev@atlas.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2016/04/04 13:43:25 UTC
[jira] [Commented] (ATLAS-628) Starting two Atlas instances at the
same time causes exceptions in HA mode.
[ https://issues.apache.org/jira/browse/ATLAS-628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15223975#comment-15223975 ]
Hemanth Yamijala commented on ATLAS-628:
----------------------------------------
For now, to test HA, the workaround would be to ensure one of the instances starts up before the other.
> 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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