NEO4J Server startup Failure problem resolution in Linux

Recently need to use neo4j to do a small test, seemingly a smooth installation but when the server started the error. Finally found the problem is JDK1.7 installation, less modified a symlink.

My installation steps are as follows:

JDK1.7 was downloaded from Oracle and Java_home variables were modified in ~/.BASHRC.

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Export Java_home=/usr/libexec/java_home-v 1.7

Checked the current JDK version.

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> Source ~/.BASHRC > java-version Java Version "1.7.0_25" Java (TM) SE Runtime Environment (build 1.7.0_25-b15) Java HotSpot (TM) 64-bit Server VM (build 23.25-b01, Mixed mode)

There seems to be no problem, but it's not actually done.

Under/system/library/frameworks/javavm.framework/versions there is a currentjdk symlink that still points to the path to JDK 1.6.

If the symlink is not modified, the neo4j startup times are wrong.

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> neo4j Start Using additional JVM arguments: -server-xx:+disableexplicitgc-dorg.neo4j.server.properties=conf/ Neo4j-server.properties -djava.util.logging.config.file=conf/logging.properties-dlog4j.configuration=file: Conf/log4j.properties -xx:+useconcmarksweepgc-xx:+cmsclassunloadingenabled-dneo4j.ext.udc.source=homebrew Starting neo4j Server ... Warning:not changing user Process [29976] ... waiting for server to be ready .... Failed to start within seconds. Neo4j Server may have failed to start, please check the logs.

You need to execute the command:

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> cd/system/library/frameworks/javavm.framework/versions > sudo rm currentjdk > sudo ln-s/library/java/javavirtualmachines/jdk1.7.0_25.jdk/contents/currentjdk > Ls-l CURRENTJDK Lrwxr-xr-x 1 root wheel Aug 01:58 currentjdk->/library/java/javavirtualmachines/jdk1.7.0_25.jdk/contents/

Then

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> neo4j Start Using additional JVM arguments: -server-xx:+disableexplicitgc-dorg.neo4j.server.properties=conf/ Neo4j-server.properties -djava.util.logging.config.file=conf/logging.properties-dlog4j.configuration=file: Conf/log4j.properties -xx:+useconcmarksweepgc-xx:+cmsclassunloadingenabled-dneo4j.ext.udc.source=homebrew Starting neo4j Server ... Warning:not changing user Process [33636] ... waiting for server to be ready ..... Ok. Go to Http://localhost:7474/webadmin/for administration interface. neo4j Server

The

starts successfully. On the internet to see a lot of people reported similar mistakes, but the reason is not all the JDK path problem caused.