ElasticSearch、logstash報錯處理OpenJDK 64-Bit Server VM warning: If the number of processors is expected

• 報錯：OpenJDK 64-Bit Server VM warning: If the number of processors is expected to increase from one, then you should configure the number of parallel GC threads appropriately using -XX:ParallelGCThreads=N

在虛擬機的設置中，將處理器的處理器核心數量改成2，重新執行啓動命令後，能夠正常運行。若還是未能執行成功，可進一步將處理器數量也改成2.

改完後，該報錯消失