adonis0147 commented on code in PR #23943:
URL: https://github.com/apache/doris/pull/23943#discussion_r1316680630


##########
bin/start_fe.sh:
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@@ -108,7 +108,12 @@ if [[ -e "${DORIS_HOME}/bin/palo_env.sh" ]]; then
 fi
 
 if [[ -z "${JAVA_HOME}" ]]; then
-    JAVA="$(command -v java)"
+    if ! command -v java &>/dev/null; then

Review Comment:
   Hi @xyfsjq , would you show the errors here if we don't set `JAVA_HOME` 
before starting FE?
   
   By the way, if it was caused by the environment variable `JAVA_HOME` which 
is unset, we should check the variable `JAVA_HOME` straightforwardly.



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