无法打开 Elasticsearch-head 插件 – v2.1.1

Question

我正在尝试使用此 URL http://vmname:9200/_plugin/head 打开 elasticsearch-head 插件，但没有成功，我收到“此网页不可用”。

需要你的帮助来解决这个问题，不确定我是否遗漏了什么。

请在下面找到环境的详细信息，

Elasticsearch version: 2.1.1
Plugins: elasticsearch-head
JAVA: java version "1.7.0_05"
OS: Linux 2.6.32-220.el6.x86_64

插件安装日志：

[esearch@vmname bin]$ ./plugin install mobz/elasticsearch-head url http://github.com/mobz/elasticsearch-head/archive/master.zip
-> Installing mobz/elasticsearch-head...
Trying https://github.com/mobz/elasticsearch-head/archive/master.zip ...
Downloading ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................DONE
Verifying https://github.com/mobz/elasticsearch-head/archive/master.zip checksums if available ...
NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)
Installed head into /opt/elasticsearch-2.1.1/plugins/head

ElasticSearch 日志：

[esearch@vmname bin]$ ./elasticsearch
[2015-12-26 12:51:19,953][WARN ][bootstrap                ] unable to install syscall filter: prctl(PR_GET_NO_NEW_PRIVS): Invalid argument
[2015-12-26 12:51:20,536][INFO ][node                     ] [Gatecrasher] version[2.1.1], pid[19215], build[40e2c53/2015-12-15T13:05:55Z]
[2015-12-26 12:51:20,536][INFO ][node                     ] [Gatecrasher] initializing ...
[2015-12-26 12:51:20,825][INFO ][plugins                  ] [Gatecrasher] loaded [], sites [head]
[2015-12-26 12:51:20,869][INFO ][env                      ] [Gatecrasher] using [1] data paths, mounts [[/ (/dev/sda3)]], net usable_space [4.8gb], net total_space [27.3gb], spins? [possibly], types [ext3]
[2015-12-26 12:51:24,514][INFO ][node                     ] [Gatecrasher] initialized
[2015-12-26 12:51:24,514][INFO ][node                     ] [Gatecrasher] starting ...
[2015-12-26 12:51:24,646][INFO ][transport                ] [Gatecrasher] publish_address {127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}, {[::1]:9300}
[2015-12-26 12:51:24,669][INFO ][discovery                ] [Gatecrasher] elasticsearch/NhlBGx_kTiq7JeeEPihz2w
[2015-12-26 12:51:27,728][INFO ][cluster.service          ] [Gatecrasher] new_master {Gatecrasher}{NhlBGx_kTiq7JeeEPihz2w}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received)
[2015-12-26 12:51:27,751][INFO ][http                     ] [Gatecrasher] publish_address {127.0.0.1:9200}, bound_addresses {127.0.0.1:9200}, {[::1]:9200}
[2015-12-26 12:51:27,751][INFO ][node                     ] [Gatecrasher] started
[2015-12-26 12:51:27,850][INFO ][gateway                  ] [Gatecrasher] recovered [0] indices into cluster_state

如果您需要任何其他信息，请告诉我。

我可以毫无问题地访问 Windows 7 中的 head 插件，但我无法在 Linux.

中访问它

已编辑......................................

无法从外部访问端口 9200，

[root@ newvm ~]# nc -vz vmname 9200
nc: connect to vmname port 9200 (tcp) failed: Connection refused

而虚拟机中的端口正在侦听，

[root@vmname ~]# nc -vz vmname 9200
Connection to vmname 9200 port [tcp/wap-wsp] succeeded!

[root@ vmname ~]# netstat -nat | grep :9200
tcp        0      0 ::1:9200                    :::*                        LISTEN
tcp        0      0 ::ffff:127.0.0.1:9200       :::*                        LISTEN

我已关闭防火墙并尝试过，但问题仍然存在！

[root@ vmname ~]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Answer 1

确保插件目录有足够的权限让 elasticsearch 为插件文件提供服务：

sudo chown -R elasticsearch. /usr/share/elasticsearch

Answer 2

您当前已将 elasticsearch 配置为仅侦听本地主机

您可能想尝试向您的 elasticsearch.yml 添加以下内容

network.host: [网络接口]

注意：这将使您的集群监听 public 接口，因此您需要恢复防火墙并限制访问。

无法打开 Elasticsearch-head 插件 – v2.1.1

Unable to open Elasticsearch-head plugin – v2.1.1

elasticsearch

elasticsearch-plugin