标签：9.png ast java for src 不能 分布 size 其他
[2017-01-12T15:55:55,433][INFO ][o.e.b.BootstrapCheck ] [SfD5sIh] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
ERROR: bootstrap checks failed
max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
sudo sysctl -w vm.max_map_count=262144
sysctl -a|grep vm.max_map_count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
然后，重新启动elasticsearch，即可启动成功。 max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]修改/etc/security/limits.conf文件，添加或修改如下行：
* hard nofile 65536
* soft nofile 65536max 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
修改如下内容：
* soft nproc 1024
#修改为
补：启动异常：ERROR: bootstrap checks failed
system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
问题原因：因为Centos6不支持SecComp，而ES5.2.1默认bootstrap.system_call_filter为true进行检测，所以导致检测失败，失败后直接导致ES不能启动。详见 ：https://github.com/elastic/elasticsearch/issues/22899
近日，单台机器，8个节点的es集群，8个节点都正常started了，但是就是无法形成集群，后来看日志，日志中出现一堆的MasterNotDiscoveredException这种异常，完整日志如下：
[2016-04-27 15:08:22,445][DEBUG][action.admin.cluster.health] [es.10.16.66.152.0] no known master node, scheduling a retry
[2016-04-27 15:08:52,457][INFO ][rest.suppressed ] /_cat/health Params: {h=node.total}
MasterNotDiscoveredException[waited for [30s]]
at org.elasticsearch.action.support.master.TransportMasterNodeAction$4.onTimeout(TransportMasterNodeAction.java:160)
at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:239)
at org.elasticsearch.cluster.service.InternalClusterService$NotifyTimeout.run(InternalClusterService.java:630)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
查看了每一个节点的elasticsearch.yml这个文件之后，发现其中只有一个节点的node.master这个配置为true，而其中discovery.zen.minimum_master_nodes这个配置的值却是5，而有资格成为主节点的只有一个，所以永远也形成不了集群啊。
标签：9.png ast java for src 不能 分布 size 其他
原文地址：http://www.cnblogs.com/hughtxp/p/6667844.html
