我正在尝试使用 Flink 5.x Elasticsearch 接收器连接器将数据插入微型 VM 上托管的 ES 5.2.1 实例。
因为这是一个处于开发模式的微型虚拟机，所以我无法让它启动以在 9300 上接受 TransportClient 远程客户端连接而不会使 Bootstrap 检查失败。
[2017-02-17T09:02:48,581][INFO ][o.e.n.Node ] [Z_fiBnl] starting ...
[2017-02-17T09:02:48,866][INFO ][o.e.t.TransportService ] [Z_fiBnl] publish_address {xxxxxx:9300}, bound_addresses {127.0.0.1:9300}
[2017-02-17T09:02:48,878][INFO ][o.e.b.BootstrapChecks ] [Z_fiBnl] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
ERROR: bootstrap checks failed
max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
max number of threads [1024] for user [xxx] is too low, increase to at least [2048]
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
我试过以下设置，但就是无法启动(9200 上的 http 客户端工作正常)
transport.publish_host: 0.0.0.0
transport.bind_host: 0.0.0.0
http.host: "xxx"
http.host: 169.117.72.167
network.host: 0.0.0.0
network.publish_host: 0.0.0.0
请注意，ES 仅在用于开发目的的微型虚拟机上运行，我无权更改 ex。此框的文件描述符限制。
最佳答案
max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
ulimit -n 65536
或设置nofile至 65536在 /etc/security/limits.conf
max number of threads [1024] for user [xxx] is too low, increase to at least [2048]
ulimit -u 2048
或者设置nproc值 2048或以上 /etc/security/limits.conf在开始 elasticsearch 之前。
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
设置vm.max_map_count=262144在 /etc/sysctl.conf
然后做 sysctl -p
如果您希望在开发环境中运行 elasticsearch，尽管 Bootstrap 检查失败:
在您的 elasticsearch.yml 中设置以下内容
transport.host: 127.0.0.1
http.host: 0.0.0.0
请注意，您不能在开发模式下形成集群。 不要在生产环境中使用 Bootstrap 检查失败的 elasticsearch!
关于Elasticsearch - Bootstrap 检查失败，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42300463/