java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8]

ゝ一世哀愁。 2022-12-01 05:29 73阅读 0赞

spring boot项目整合elasticsearch，启动报错：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'elasticsearchClient' defined in class path resource [org/springframework/boot/autoconfigure/data/elasticsearch/ElasticsearchAutoConfiguration.class]: Bean instantiation via factory method failed; 
    nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.elasticsearch.client.transport.TransportClient]: Factory method 'elasticsearchClient' threw exception;
     nested exception is java.lang.IllegalStateException: availableProcessors is already set to [8], rejecting [8]

各种百度，大多是建议在启动类的main方法中添加：

System.setProperty("es.set.netty.runtime.available.processors", "false");

即将main方法改写为：

/**
         * 入口主函数
         *
         * @param args
         */
        public static void main(String[] args) {
            //解决netty冲突
            System.setProperty("es.set.netty.runtime.available.processors", "false");
            SpringApplication.run(BossApplication.class, args);
        }

但是我这边这样改木有用。  
后来，找到了  
[java.lang.IllegalStateException: availableProcessors is already set to \[8\], rejecting \[8\]][java.lang.IllegalStateException_ availableProcessors is already set to _8_ rejecting _8]  
这篇博客，参考里头的方案，在启动类中添加了一个初始化方法：

@PostConstruct
        void init() {
            System.setProperty("es.set.netty.runtime.available.processors", "false");
        }

解决~

[java.lang.IllegalStateException_ availableProcessors is already set to _8_ rejecting _8]: https://www.cnblogs.com/notchangeworld/p/12027648.html