I just installed Elastic Search 6.6. I ran it and it worked fine until I tried again a few hours later:
# /export1/opt/ELK_Bin/elasticsearch-6.6.1/bin/elasticsearch which: no java in (/usr/lib64/qt-3.3/bin:/usr/local/sbin:/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/X11R6/bin) could not find java; set JAVA_HOME or ensure java is in PATH [Dev root @ vm-63f1-8c50 /export1/opt/ELK_Bin] # echo $JAVA_HOME /export/opt/jdk/1.8.0_25l64/
The logs I got usually showed up on the console and now I can't even see what the larger issue is.
Java is installed and this has started up before. I'm not sure what went wrong...