8.X - Elasticsearch failing to install or upgrade due to incorrect JAVA_HOME value

Article ID: 52496 - Last Review: October 7, 2016

PROBLEM

Installing Elasticsearch fails. 

SYMPTOMS

In the MiCC.Installer.Core logfile you will see a line like the following:

Info: 2016-Aug-10 07:18:35.999   Setting JAVA_HOME to C:\Program Files\Java\jre1.8.0_91     ()

When you check this Java location, it does not contain the current install.

RESOLUTION

Elasticsearch has stored a JAVA_HOME variable for itself, and it has not updated after a java version update.

1. Open regedit.exe
2. Go to reg key HKLM/SOFTWARE/Wow6432Node/Apache Software Foundation/Procrun 2.0/elasticsearch-service-x64/Parameters/Java
3. Look at the value [Jvm].  It will be something like c:\Program Files\Java\jre1.8.0_101\bin\server\jvm.dll
4. Replace the value with %JAVA_HOME%\bin\server\jvm.dll 

This will make the JAVA_HOME variable used by Elasticsearch resilient to upgrades by checking the system's own location each time.

APPLIES TO

MiCC 8.X 

Keywords: elasticsearch java java_home install