finetune logstash image and compose settings

etc/compose/hive.yml

@@ -18,7 +18,7 @@ services:
     restart: always
     environment:
      - bootstrap.memory_lock=true
-#     - ES_JAVA_OPTS=-Xms2048m -Xmx2048m
+     - ES_JAVA_OPTS=-Xms2048m -Xmx2048m
      - ES_TMPDIR=/tmp
     cap_add:
      - IPC_LOCK
@@ -52,8 +52,8 @@ services:
   logstash:
     container_name: logstash
     restart: always
-#    environment:
-#     - LS_JAVA_OPTS=-Xms2048m -Xmx2048m
+    environment:
+     - LS_JAVA_OPTS=-Xms2048m -Xmx2048m
     depends_on:
       elasticsearch:
         condition: service_healthy