文章目录
- [ElasticSearch 5.0.0 安装部署常见错误或问题](#ElasticSearch 5.0.0 安装部署常见错误或问题)
-
- 问题一：UnsupportedOperationException
- [问题二：ERROR: bootstrap checks failed](#问题二：ERROR: bootstrap checks failed)
- [问题三：max number of threads 1024 for user es likely too low, increase to at least 2048](#问题三：max number of threads [1024] for user [es] likely too low, increase to at least [2048])
- [问题四：max virtual memory areas vm.max_map_count 65530 likely too low, increase to at least 262144](#问题四：max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144])
- 问题五：ElasticSearch启动找不到主机或路由
- [问题六：org.elasticsearch.transport.RemoteTransportException: Failed to deserialize exception response from stream](#问题六：org.elasticsearch.transport.RemoteTransportException: Failed to deserialize exception response from stream)
- [问题七：Unsupported major.minor version 52.0](#问题七：Unsupported major.minor version 52.0)
- [问题八：bin/elasticsearch-plugin install license ERROR: Unknown plugin license](#问题八：bin/elasticsearch-plugin install license ERROR: Unknown plugin license)
ElasticSearch 5.0.0 安装部署常见错误或问题
问题一：UnsupportedOperationException
[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]原因：
报了一大串错误，大家不必惊慌，其实只是一个警告，主要是因为你Linux版本过低造成的。解决方案：
1、重新安装新版本的Linux系统
2、警告不影响使用，可以忽略问题二：ERROR: bootstrap checks failed
ERROR: bootstrap checks failed
max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]原因：
无法创建本地文件问题,用户最大可创建文件数太小解决方案：
切换到root用户，编辑limits.conf配置文件， 添加类似如下内容：
vi /etc/security/limits.conf
添加如下内容:
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
备注：* 代表Linux所有用户名称（比如 hadoop）
保存、退出、重新登录才可生效问题三：max number of threads 1024 for user es likely too low, increase to at least 2048
max number of threads [1024] for user [es] likely too low, increase to at least [2048]原因：
无法创建本地线程问题,用户最大可创建线程数太小
解决方案：切换到root用户，进入limits.d目录下，修改90-nproc.conf 配置文件。
vi /etc/security/limits.d/90-nproc.conf
找到如下内容：
* soft nproc 1024
#修改为
* soft nproc 2048问题四：max virtual memory areas vm.max_map_count 65530 likely too low, increase to at least 262144
max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]原因：
最大虚拟内存太小解决方案：
切换到root用户下，修改配置文件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。问题五：ElasticSearch启动找不到主机或路由
ElasticSearch启动找不到主机或路由原因：
ElasticSearch 单播配置有问题解决方案：
检查ElasticSearch中的配置文件
vi config/elasticsearch.yml
找到如下配置：
discovery.zen.ping.unicast.hosts:["192.168.**.**:9300","192.168.**.**:9300"]
一般情况下，是这里配置有问题，注意书写格式问题六：org.elasticsearch.transport.RemoteTransportException: Failed to deserialize exception response from stream
org.elasticsearch.transport.RemoteTransportException: Failed to deserialize exception response from stream原因:
ElasticSearch节点之间的jdk版本不一致解决方案：
ElasticSearch集群统一jdk环境问题七：Unsupported major.minor version 52.0
Unsupported major.minor version 52.0原因：
jdk版本问题太低解决方案：
更换jdk版本，ElasticSearch5.0.0支持jdk1.8.0问题八：bin/elasticsearch-plugin install license ERROR: Unknown plugin license
bin/elasticsearch-plugin install license
ERROR: Unknown plugin license原因：
ElasticSearch5.0.0以后插件命令已经改变解决方案：
使用最新命令安装所有插件
bin/elasticsearch-plugin install x-pack