Zabbix Agent客戶端問題匯總

問題1：1部windows服務(wù)器，安裝了Zabbix Agent, 然后不斷重復(fù)報(bào)警
High ICMP ping loss
Zabbix agent on xxx is unreachable for 5 minutes

解決方法：修改為主動(dòng)偵測

打開：C:\Program Files\Zabbix Agent\zabbix_agentd.conf
激活ServerActive, 把Zabbix監(jiān)控服務(wù)器填寫好，讓被監(jiān)控主機(jī)主動(dòng)提交信息。

關(guān)于這個(gè)主動(dòng)監(jiān)控，端口應(yīng)該為10051才對(duì)，ServerActive=zabbix_server_ip:10051

可通過這個(gè)命令檢查log：sudo tail -f /var/log/zabbix-agent/zabbix_agentd.log
如果存在連通性問題，log會(huì)提示錯(cuò)誤信息如下：
123705:20191106:074310.500 agent #0 started [main process]
123706:20191106:074310.500 agent #1 started [collector]
123710:20191106:074310.502 agent #5 started [active checks #1]
123707:20191106:074310.502 agent #2 started [listener #1]
123709:20191106:074310.502 agent #4 started [listener #3]
123708:20191106:074310.503 agent #3 started [listener #2]
123710:20191106:074313.502 active check configuration update from [54.222.165.90:10050] started to fail (cannot connect to [[54.222.165.90]:10050]: [4] Interrupted system call)

這里的10050端口錯(cuò)誤，需要修改為10051，同時(shí)zabbix server那邊的網(wǎng)絡(luò)需要打開允許client agent IP 訪問10051端口

設(shè)置成功后，正常的log內(nèi)容如下：
140859:20191106:082004.516 using configuration file: /etc/zabbix/zabbix_agentd.conf
140859:20191106:082004.516 agent #0 started [main process]
140860:20191106:082004.516 agent #1 started [collector]
140863:20191106:082004.517 agent #4 started [listener #3]
140861:20191106:082004.518 agent #2 started [listener #1]
140862:20191106:082004.518 agent #3 started [listener #2]
140864:20191106:082004.518 agent #5 started [active checks #1]

還有一種方法將trigger由5分鐘修改為長一點(diǎn)的時(shí)間，例如10分鐘

問題2：在Zabbix服務(wù)器頁面端提示 get value from agent failed: cannot connect to IP:10050, interrupted system call

解決方法1：客戶端開啟10050端口訪問(防火墻端)

如何從服務(wù)器端檢測聯(lián)通性，如下在Zabbix服務(wù)器端操作：
sudo apt install zabbix-get

然后輸入命令：zabbix_get -s client_ip -p 10050 -k "system.uptime"

通的話會(huì)返回一串?dāng)?shù)字

解決方法2：客戶端發(fā)起主動(dòng)傳輸給服務(wù)端

vim /etc/zabbix/zabbix_agentd.conf
Windows：C:\Program Files\Zabbix Agent\zabbix_agentd.conf

下面這一行填寫服務(wù)器IP
ServerActive=zabbix_server_ip:10050

然后重啟agent：sudo service zabbix-agent restart

問題 3：Too many processes on host
Zabbix的Linux Template默認(rèn)300進(jìn)程，超過就會(huì)報(bào)警

解決方法：禁用或者調(diào)高這個(gè)默認(rèn)的300閥值

問題4：防火墻已開啟但是仍然無法連接Zabbix Agent
從Zabbix服務(wù)器端：zabbix_get -s IP -p 10050 -k "system.uptime"
提示如下錯(cuò)誤：
zabbix_get [21359]: Check access restrictions in Zabbix agent configuration

然后Zabbix Server網(wǎng)頁端，添加host后，顯示紅色，鼠標(biāo)點(diǎn)上提示信息：Received empty response from Zabbix Agent at [IP]. Assuming that agent dropped connection because of access permissions.

而在Agent端檢查log：沒有任何錯(cuò)誤提示

嘗試檢查防火墻和zabbix_agent.conf文件配置，IP什么的都沒有問題

后來嘗試卸載zabbix agent然后重新安裝：
sudo apt-get remove zabbix-agent
sudo apt-get remove --auto-remove zabbix-agent
sudo apt-get purge zabbix-agent
安裝
sudo apt-get install zabbix-agent
這個(gè)過程實(shí)際上把新版的zabbix agent裝上了，原來我裝的是舊版

然后才重新配置好conf文件并重啟zabbix agent服務(wù)，然后打開log文件，新版log文件位置也改了/var/log/zabbix/, 舊版為/var/log/zabbix_agent/，終于發(fā)現(xiàn)錯(cuò)誤

這才明白這個(gè)防火墻與服務(wù)器之間是通過端口轉(zhuǎn)發(fā)實(shí)現(xiàn)的，需要將zabbix_agent.conf的server IP修改為這個(gè)192.168.150.6才可以，原來一直設(shè)的是公網(wǎng)IP。