ElasticSearch and Java environment variable

Question

For Windows 7, I\'ve installed JDK in both 32 and 64 bit versions. The versions are 8, update 20 for all four installations. http://www.oracle.com/technetwork/java/javase/d

Answer 1

If elasticsearch version is 7.5 or higher, you find elasticsearch-7.X.Y\bin directory and then edit the elasticsearch-env.bat as the following:

   if defined JAVA_HOME (
  set JAVA="%WRITE_ELASTICSEARCH_JAVA_PATH%\bin\java.exe" //write java custom path. Edit only this line
  set JAVA_TYPE=JAVA_HOME
) else (
  set JAVA="%ES_HOME%\jdk\bin\java.exe"
  set JAVA_HOME="%ES_HOME%\jdk"
  set JAVA_TYPE=bundled jdk
)

You can customize the java path like that for elasticsearch.