Manually Merging neo4j-wrapper.conf into neo4j.conf in Neo4j 3.1

Neo4j 3.1 takes the configuration changes made in Neo4j 3.0 a step further, and ships with a single configuration file: conf/neo4j.conf. This is the result of merging the contents of conf/neo4j.conf and conf/neo4j-wrapper.conf. The upgrade does not merge these automatically,… Read more →

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Manually Migrating Configuration Settings from Neo4j 2.x to Neo4j 3.x

One of the major changes in Neo4j 3.0 was the reworking of configuration files and the individual configuration setting naming convention to make it more consitent and managable going forward. A config-migrator tool is supplied in Neo4j 3.0 to assist… Read more →

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Explanation of start failure “java.lang.NoClassDefFoundError: org/neo4j/kernel/impl/logging/LogService”

Upon starting Neo4j 3.5 if one encounters the following error in the logs/neo4j.log Caused by: org.neo4j.kernel.lifecycle.LifecycleException: Component ‘org.neo4j.kernel.extension.GlobalKernelExtensions@14c16d’ failed to initialize. Please see the attached cause exception “org.neo4j.kernel.impl.logging.LogService”. at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:434) at org.neo4j.kernel.lifecycle.LifeSupport.init(LifeSupport.java:66) at org.neo4j.kernel.lifecycle.LifeSupport.start(LifeSupport.java:102) at org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory.initFacade(GraphDatabaseFacadeFactory.java:203) … 9 more Caused… Read more →

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