Zabbix 监控RabbitMQ提示Preprocessing failed for: HTTP/1.1 500 Internal Server Error..content-length: 0

触发器错误日志如下

Preprocessing failed for: HTTP/1.1 500 Internal Server Error..content-length: 0
1. Failed: cannot perform regular expression "\n\s?\n(.*)" match for value of type "none": pattern does not match

原因

https://groups.google.com/g/rabbitmq-users/c/N0EgrLn55XQ

通过查找Google论坛，有人有相同的问题。具体原因是默认RabbitMQ模板采用了FQDN 参数，导致直接访问会有500的状态码

演示如下

curl -v -u zbx_monitor:xxx
'http://127.0.0.1:15672/api/nodes/rabbit@hostname?memory=true'
< HTTP/1.1 200 OK

curl -v -u zbx_monitor:xxx
'http://127.0.0.1:15672/api/nodes/rab...@hostname.domain.com?memory=true'
< HTTP/1.1 500 Internal Server Error

解决办法

修改RabbitMQ模板，找到RabbitMQ node by Zabbix agent 选择监控项

找到RabbitMQ: Get nodes 监控项

将下面配置进行修改删除

旧配置如下

web.page.get["{$RABBITMQ.API.SCHEME}://{$RABBITMQ.API.USER}:{$RABBITMQ.API.PASSWORD}@{$RABBITMQ.API.HOST}:{$RABBITMQ.API.PORT}/api/nodes/{$RABBITMQ.CLUSTER.NAME}@{HOST.NAME}?memory=true"]

修改为 (删除HOST.NAME)

web.page.get["{$RABBITMQ.API.SCHEME}://{$RABBITMQ.API.USER}:{$RABBITMQ.API.PASSWORD}@{$RABBITMQ.API.HOST}:{$RABBITMQ.API.PORT}/api/nodes/{$RABBITMQ.CLUSTER.NAME}?memory=true"]

点击更新

我们到主机下面的触发器中，进行测试