docker安装的sonarqube，之前安装后运行一直都正常，今天第二次启动的时候，就会自动关闭。

通过命令查看日志：

docker logs --since 30m da005eba84b7

看到报错信息如标题：

2021.11.12 01:13:05 INFO  es[][o.e.n.Node] initialized

2021.11.12 01:13:05 INFO  es[][o.e.n.Node] starting ...

2021.11.12 01:13:05 INFO  es[][o.e.t.TransportService] publish_address {127.0.0.1:36579}, bound_addresses {127.0.0.1:36579}

2021.11.12 01:13:07 INFO  es[][o.e.b.BootstrapChecks] explicitly enforcing bootstrap checks

ERROR: [1] bootstrap checks failed. You must address the points described in the following [1] lines before starting Elasticsearch.

bootstrap check failure [1] of [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

ERROR: Elasticsearch did not exit normally - check the logs at /opt/sonarqube/logs/sonarqube.log

2021.11.12 01:13:07 INFO  es[][o.e.n.Node] stopping ...

2021.11.12 01:13:07 INFO  es[][o.e.n.Node] stopped

2021.11.12 01:13:07 INFO  es[][o.e.n.Node] closing ...

2021.11.12 01:13:07 INFO  es[][o.e.n.Node] closed

2021.11.12 01:13:07 WARN  app[][o.s.a.p.AbstractManagedProcess] Process exited with exit value [es]: 78

2021.11.12 01:13:07 INFO  app[][o.s.a.SchedulerImpl] Process[es] is stopped

2021.11.12 01:13:07 INFO  app[][o.s.a.SchedulerImpl] SonarQube is stopped

2021.11.12 01:18:21 INFO  app[][o.s.a.AppFileSystem] Cleaning or creating temp directory /opt/sonarqube/temp

2021.11.12 01:18:21 INFO  app[][o.s.a.es.EsSettings] Elasticsearch listening on [HTTP: 127.0.0.1:9001, TCP: 127.0.0.1:43899]

文件里面有提示，但是，不知道为什么第一次能够正常运行，第二次就报错了。

现在需要修改文件：

vi /etc/sysctl.d/99-sysctl.conf

在文件末尾加入：

fs.file-max = 2097152

vm.max_map_count = 262144

vm.swappiness = 1

然后，运行命令：

sysctl -p

再重新使用docker start 你的容器ID，运行就正常了