首先先用docker 搭建 es

搜索 es+springboot 大都又是 在本地 搭建的es。。于是觉得自己边搜边写一篇博客 作为记录使用

docker:
首先安装
docker pull elasticsearch
docker run -d --name es -p 9200:9200 -e "discovery.type=single-node" id
打开 服务器ip:9200 可以正常打开
docker exec -it es /bin/bash
cd plugins/
plugin install mobz/elasticsearch-head
服务器ip:9200/_plugin/head/ 打开管理插件
但登陆elasticsearch-head点击连接9200 没反应
docker exec -it /bin/bash
cd config
vi elsaticsearch.yml
增加以下两行
http.cors.enabled: true
http.cors.allow-origin: "*"即可
点击连接 解决问题
整合springboot过程及其痛苦 搜了无数博客 都不行 就是愣连接不上9300端口 。。 于是乎 暂停dockr部署 转为命令启动方式以后有时间在去看看

• soft nofile 65536
• hard nofile 65536
  此文件修改后需要重新登录用户，才会生效
  [2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
  编辑 /etc/sysctl.conf，追加以下内容：
  vm.max_map_count=655360
  保存后，执行：
  sysctl -p
  重新启动，成功。
  1、问题一
  Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000c5330000, 986513408, 0) failed; error=‘Cannot allocate memory‘ (errno=12)
  #
  

  There is insufficient memory for the Java Runtime Environment to continue.

      #Native memory allocation (mmap) failed to map 986513408 bytes for committing reserved memory.
      #An error report file with more information is saved as:
      #/usr/local/software/temp/elasticsearch-6.2.2/hs_err_pid1912.log
  解决：内存不够，购买阿里云的机器可以动态增加内存
  
  2、问题二
      [[email protected] bin]# ./elasticsearch
      [2018-02-22T20:14:04,870][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
      org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
      at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.2.2.jar:6.2.2]
      at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.2.2.jar:6.2.2]
      at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.2.2.jar:6.2.2]
      at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.2.2.jar:6.2.2]
  解决：用非root用户
      添加用户：useradd -m 用户名  然后设置密码  passwd 用户名
  
  3、问题三
      ./elasticsearch
      Exception in thread "main" java.nio.file.AccessDeniedException: /usr/local/software/temp/elasticsearch-6.2.2/config/jvm.options
     解决：权限不够 chmod 777 -R 当前es目录

启动的时候报错：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘controller‘: Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘goodsRepository‘: Cannot resolve reference to bean ‘elasticsearchTemplate‘ while setting bean property ‘elasticsearchOperations‘; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘elasticsearchTemplate‘ defined in class path resource [org/springframework/boot/autoconfigure/data/elasticsearch/ElasticsearchDataAutoConfiguration.class]: Unsatisfied dependency expressed through method ‘elasticsearchTemplate‘ parameter 0; nested exception is 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 [12], rejecting [12]

继续搜索解决方案 也没其他好办法 挨个博客试呗， 有的博客是让添加配置的 可是vim elasticsearch.yml 的时候报错：bash: vim: command not found
在使用docker容器时，有时候里边没有安装vim，敲vim命令时提示说：vim: command not found，这个时候就需要安装vim，可是当你敲apt-get install vim命令时，提示：
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package vim
1)这时候需要敲：apt-get update，这个命令的作用是：同步 /etc/apt/sources.list 和 /etc/apt/sources.list.d 中列出的源的索引，这样才能获取到最新的软件包。
2)等更新完毕以后再敲命令：apt-get install vim命令即可。

崩溃了。。弄了一天了，把项目中关于es的都删了，找个教程重新走一遍

2019.1.22 springboot+elasticsearch+docker