Elasticsearch错误curl：(7)无法连接到localhost端口9200:连接被拒绝，但localhost:9200可以在浏览器上工作
我正在尝试按照这个tutorial将Elasticsearch 5.5.2连接到Django 2项目：
当在终端上运行：curl -X GET 'http://localhost:9200'时，我得到了这个错误：curl: (7) Failed to connect to localhost port 9200: Connection refused，而localhost:9200在我的浏览器上运行得很好。
下面是我的elasticsearch.yml文件的概述：
# Use a descriptive name for your cluster:
#
#cluster.name: my-application
#
# Use a descriptive name for the node:
#
#node.name: node-1
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# Path to directory where to store the data (separate multiple locations by comma):
#
#path.data: /path/to/data
#
# Path to log files:
#
#path.logs: /path/to/logs
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
# Elasticsearch performs poorly when the system is swapping the memory.
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 0.0.0.0
#
# Set a custom port for HTTP:
#
#http.port: 9200
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.zen.ping.unicast.hosts: ["host1", "host2"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#
#discovery.zen.minimum_master_nodes: 3
#
# For more information, consult the zen discovery module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true/var/log/elasticsearch/为空。
请问curl有什么问题？
回答 3
Stack Overflow用户
发布于 2018-02-21 23:59:59
ok eureka!，你有一个java堆空间错误。看看这个错误：
# There is insufficient memory for the Java Runtime Environment to continue你可以增加/减少-我不知道问题出现是因为你的机器内存太少，es无法启动，或者你分配给es的内存太少- java虚拟机编辑这个文件/etc/elasticsearch/jvm.options分配2 GB内存的弹性专用空间，你应该改变：
# Xms represents the initial size of total heap space
# Xmx represents the maximum size of total heap space
-Xms2g
-Xmx2g然后，您必须重新启动服务
sudo service elasticsearch restart然后使用curl重试
Stack Overflow用户
发布于 2019-10-30 14:12:38
这是在启动服务时产生的问题。我把它改成开放的jdk 8，它开始工作了
curl localhost:9200
{
"name" : "My First Node",
"cluster_name" : "mycluster1",
"version" : {
"number" : "2.3.1",
"build_hash" : "bd980929010aef404e7cb0843e61d0665269fc39",
"build_timestamp" : "2016-04-04T12:25:05Z",
"build_snapshot" : false,
"lucene_version" : "5.5.0"
},
"tagline" : "You Know, for Search"
}Stack Overflow用户
发布于 2019-10-04 16:02:33
我也有同样的问题，但与卢帕诺德回答的原因不同。将我的发现添加给其他人。
我在ip:9200上的连接也被拒绝，但localhost:9200正在工作。当我尝试"network.host : 0.0.0.0“时，服务不会启动。我将值更改为"http.host“，如下所示，这允许服务启动并通过ip调用。
/etc/elasticsearch/elasticsearch.yml
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
http.host: 192.168.1.199
#
# Set a custom port for HTTP:
#
http.port: 9200
#之前：
[root@Loki-03 ~]# curl localhost:9200
"name" : "Loki-03"
[root@Loki-03 ~]# curl 192.168.1.199:9200
curl: (7) Failed to connect to 192.168.1.199 port 9200: Connection refused之后：
[root@Loki-03 ~]# systemctl restart elasticsearch.service
[root@Loki-03 ~]# curl 192.168.1.199:9200
{
"name" : "Loki-03",希望这能有所帮助。另外，我正在运行：
"version" : {
"number" : "7.4.0",
"build_flavor" : "default",
"build_type" : "rpm",
"build_hash" : "22e1767283e61a198cb4db791ea66e3f11ab9910",
"build_date" : "2019-09-27T08:36:48.569419Z",
"build_snapshot" : false,
"lucene_version" : "8.2.0",https://stackoverflow.com/questions/48903999
复制相似问题
腾讯云开发者
