ELK学习3 启动es常见错误或问题

1：警告提示

[2016-11-06T16:27:21,712][WARN ][o.e.b.JNANatives ] unable to install syscall filter:

java.lang.UnsupportedOperationException: seccomp unavailable: requires kernel 3.5+ with CONFIG_SECCOMPandCONFIG_SECCOMP_FILTERcompiledinatorg.elasticsearch.bootstrap.Seccomp.linuxImpl(Seccomp.java:349) ~[elasticsearch-5.0.0.jar:5.0.0]

at org.elasticsearch.bootstrap.Seccomp.init(Seccomp.java:630) ~[elasticsearch-5.0.0.jar:5.0.0]

报了一大串错误，其实只是一个警告。

解决：使用心得linux版本，就不会出现此类问题了。

2：ERROR: bootstrap checks failed

max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]

max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]

解决：切换到root用户，编辑limits.conf 添加相似以下内容

vi /etc/security/limits.conf

添加以下内容:

* soft nofile 65536

* hard nofile 131072

* soft nproc 2048

* hard nproc 4096

要从新登陆

3：max number of threads [1024] for user [lish] likely too low, increase to at least [2048]

解决：切换到root用户，进入limits.d目录下修改配置文件。

vi /etc/security/limits.d/90-nproc.conf

修改以下内容：

* soft nproc 1024

#修改成

* soft nproc 2048

4：max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]

解决：切换到root用户修改配置sysctl.conf

vi /etc/sysctl.conf

添加下面配置：

vm.max_map_count=655360

并执行命令：

sysctl -p

而后，从新启动elasticsearch，便可启动成功。

5：找不到主机或路由

通常状况下是你的

discovery.zen.ping.unicast.hosts:["192.168.**.**:9300","192.168.**.**:9300"] 这里写错了