HDDS-2098 : Ozone shell command prints out ERROR when the log4j file … (#1411)

hadoop-ozone/common/src/main/bin/ozone

@@ -69,6 +69,12 @@ function ozonecmd_case
   subcmd=$1
   shift
 
+  ozone_default_log4j="${HADOOP_CONF_DIR}/log4j.properties"
+  ozone_shell_log4j="${HADOOP_CONF_DIR}/ozone-shell-log4j.properties"
+  if [ ! -f "${ozone_shell_log4j}" ]; then
+    ozone_shell_log4j=${ozone_default_log4j}
+  fi
+
   case ${subcmd} in
     auditparser)
       HADOOP_CLASSNAME=org.apache.hadoop.ozone.audit.parser.AuditParser
@@ -118,7 +124,7 @@ function ozonecmd_case
     ;;
     freon)
       HADOOP_CLASSNAME=org.apache.hadoop.ozone.freon.Freon
-      OZONE_FREON_OPTS="${OZONE_FREON_OPTS} -Dhadoop.log.file=ozone-freon.log -Dlog4j.configuration=file:${HADOOP_CONF_DIR}/ozone-shell-log4j.properties"
+      OZONE_FREON_OPTS="${OZONE_FREON_OPTS} -Dhadoop.log.file=ozone-freon.log -Dlog4j.configuration=file:${ozone_shell_log4j}"
       HADOOP_OPTS="${HADOOP_OPTS} ${OZONE_FREON_OPTS}"
       OZONE_RUN_ARTIFACT_NAME="hadoop-ozone-tools"
     ;;
@@ -139,7 +145,8 @@ function ozonecmd_case
     ;;
     sh | shell)
       HADOOP_CLASSNAME=org.apache.hadoop.ozone.web.ozShell.OzoneShell
-      HDFS_OM_SH_OPTS="${HDFS_OM_SH_OPTS} -Dhadoop.log.file=ozone-shell.log -Dlog4j.configuration=file:${HADOOP_CONF_DIR}/ozone-shell-log4j.properties"
+      HDFS_OM_SH_OPTS="${HDFS_OM_SH_OPTS} -Dhadoop.log.file=ozone-shell.log
+      -Dlog4j.configuration=file:${ozone_shell_log4j}"
       HADOOP_OPTS="${HADOOP_OPTS} ${HDFS_OM_SH_OPTS}"
       OZONE_RUN_ARTIFACT_NAME="hadoop-ozone-ozone-manager"
     ;;