upgrade from 4.4 to 5.0 issues

[rajsolanki]

Hi

We are in pretty early stages of implementing Zabbix. We had 4.4. Got notification that 5.0 is released. So i followed update instructions.

I did upgrade php

rpm -qa | grep php
rh-php72-php-process-7.2.24-1.el7.x86_64
rh-php72-php-ldap-7.2.24-1.el7.x86_64
rh-php72-php-pdo-7.2.24-1.el7.x86_64
rh-php72-php-mbstring-7.2.24-1.el7.x86_64
rh-php72-php-common-7.2.24-1.el7.x86_64
rh-php72-php-fpm-7.2.24-1.el7.x86_64
rh-php72-php-xml-7.2.24-1.el7.x86_64
rh-php72-php-mysqlnd-7.2.24-1.el7.x86_64
rh-php72-runtime-1-2.el7.x86_64
rh-php72-1-2.el7.x86_64
rh-php72-php-bcmath-7.2.24-1.el7.x86_64
rh-php72-php-json-7.2.24-1.el7.x86_64
rh-php72-php-gd-7.2.24-1.el7.x86_64
rh-php72-php-zip-7.2.24-1.el7.x86_64
rh-php72-php-cli-7.2.24-1.el7.x86_64
rh-php72-php-pear-1.10.5-1.el7.noarch


i did upgrade maridb

mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 8
Server version: 10.4.12-MariaDB MariaDB Server

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.


followed steps from https://www.zabbix.com/documentation...es/rhel_centos to upgrade zabbix.

for web i m using apache

installed web package as per docs.

my yum list rh-php7\* has all sorts of package displayed.

/etc/yum.repos.d/zabbix.repo has
zabbix-frontend enabled = 1

then did
yum install zabbix-web-mysql-scl

then followed normal update process.

after all done i see this packages installed.

zabbix-server-mysql-5.0.0-1.el7.x86_64
zabbix-release-5.0-1.el7.noarch
zabbix-web-mysql-scl-5.0.0-1.el7.noarch
zabbix-agent-5.0.0-1.el7.x86_64
zabbix-web-5.0.0-1.el7.noarch
zabbix-web-deps-scl-5.0.0-1.el7.noarch


then did

systemctl start httpd

[Tue May 12 14:10:26.399501 2020] [suexec:notice] [pid 22415] AH01232: suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)
[Tue May 12 14:10:26.409216 2020] [lbmethod_heartbeat:notice] [pid 22415] AH02282: No slotmem from mod_heartmonitor
[Tue May 12 14:10:26.412434 2020] [mpm_prefork:notice] [pid 22415] AH00163: Apache/2.4.6 (Red Hat Enterprise Linux) configured -- resuming normal operations
[Tue May 12 14:10:26.412453 2020] [core:notice] [pid 22415] AH00094: Command line: '/usr/sbin/httpd -D FOREGROUND'


then did
systemctl start zabbix-agent

then did start zabbix server

few logs

19706:20200512:134235.103 Starting Zabbix Server. Zabbix 5.0.0 (revision 9665d62db0).
19706:20200512:134235.103 ****** Enabled features ******
19706:20200512:134235.103 SNMP monitoring: YES
19706:20200512:134235.103 IPMI monitoring: YES
19706:20200512:134235.103 Web monitoring: YES
19706:20200512:134235.103 VMware monitoring: YES
19706:20200512:134235.103 SMTP authentication: YES
19706:20200512:134235.103 ODBC: YES
19706:20200512:134235.103 SSH support: YES
19706:20200512:134235.103 IPv6 support: YES
19706:20200512:134235.103 TLS support: YES
19706:20200512:134235.103 ******************************
19706:20200512:134235.103 using configuration file: /etc/zabbix/zabbix_server.conf
19706:20200512:134235.104 lldp_get module: loaded by server process. [1]
19706:20200512:134235.119 loaded modules: lldp_get.so
19706:20200512:134235.122 current database version (mandatory/optional): 05000000/05000000
19706:20200512:134235.122 required mandatory version: 05000000
19706:20200512:134235.133 database is not upgraded to use double precision values

then i try zabbix url i get 404

[12/May/2020:14:13:04 -0500] "GET /zabbix/ HTTP/1.1" 404 205 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:75.0) Gecko/20100101 Firefox/75.0"


so dont know why UI is not loading.

dont know what did i miss

[rajsolanki]

i even did a fresh install and basically same issue. for some reason http config is not able to load php module

[pliniocl]

I´ve was expericing the same issue Centos 8/Zabbix 4.0.0 to 5.0

My workaround was:

http://repo.zabbix.com/zabbix/5.0/rhel/8/x86_64/ - Download on repo this file: http://repo.zabbix.com/zabbix/5.0/rh...el8.noarch.rpm

and install it

rpm -Uvh http://repo.zabbix.com/zabbix/5.0/rh...el8.noarch.rpm

After that, in /etc/httpd/conf.d/

clear zabbix.conf and remane "mv zabbix.conf.rpmnew zabbix.conf"

restart httpd:

and works again

[rajsolanki]

That helped. i did not reinstall anything. all i did was renaming the conf file. the rpmnew had all proper php settings

[rajsolanki]

good thing is if i use serverame/zabbix/index.php i am able to login. Bad thing i can not add snmp interface on azbbix server in UI . i have tried edge firefox and chrome all 3 browsers.

[Atsushi]

Try install with zabbix-apache-conf-scl package.

# yum install zabbix-apache-conf-scl
# systemctl start rh-php72-php-fpm
# systemctl enable rh-php72-php-fpm
# systemctl restart httpd

[karanpreetsingh1990]

This was missing from my setup and the frontend was accessible as soon as I installed the package!! Thanks.

[rajsolanki]

karan are you having any issue with adding snm interface ? i guess you on centOS ?

[rajsolanki]

Try install with zabbix-apache-conf-scl package.

# yum install zabbix-apache-conf-scl
# systemctl start rh-php72-php-fpm
# systemctl enable rh-php72-php-fpm
# systemctl restart httpd

rhel-7-server-rpms 29075/29075
Package zabbix-apache-conf-scl-5.0.0-1.el7.noarch already installed and latest version
Nothing to do

stillw ent ahead and did other steps but no luck.

[Atsushi]

I introduced the procedure for CentOS 7. If you see the improvements written at the following URL, aren't you using CentOS 8 or RHEL 8? Use the package that matches your platform.

https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/401016-upgrade-from-4-4-to-5-0-issues?p=401087#post401087

[rajsolanki]

i m not on RHEL 8 . centOS 8. i m on RHEL 7. after renaming "mv zabbix.conf.rpmnew zabbix.conf like pliniocl user suggested did the trick. but i cant have my snmp interface added

[rajsolanki]

now for me all works except my worst error just keeps coming up. i just can not add snmp interface on zabbix server.

it just keeps timing out as soon as i update host configh with snmp

i get this error

AH01075: Error dispatching request to :, referer: http://XXXXXXXXXXX/zabbix/hosts.php?...e&hostid=10084

[rajsolanki]

about SNMP i had exact same issue in 4.4 and discussion thread here.


https://www.zabbix.com/forum/zabbix-...erver-and-snmp

but with 5.0 nothing is working. i have tried all 3 browsers and in private (incognito) mode too

[rajsolanki]

so any way to fix this ? this is kind of frustrating. is there other way to use this tool as snmp trap receiver ? .

[Atsushi]

Hi rajsolanki,

You didn't have the problem when you upgraded from 4.4 to 5.0, did you have it since 4.4?
I checked the contents of the problem with 4.4 in the following URL, but if the problem occurs with the web front end, it is possible that there is a problem with the web server settings.

https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/395863-zabbix-4-4-server-and-snmp

If possible, try building a new Zabbix server separately. You should be able to create an SNMP interface if you only have the required packages installed on Zabbix server. Try to find the differences by comparing the environment where you can create the SNMP interface and the environment where you are currently experiencing the problem.

[rajsolanki]

we had issue on 4.4 too but that time in private browsing mode in FF i was able to add snmp interface . That time it was a POC kind of server. So we got a new server with same specs and we had same issue but that time again in private browsing mode it worked. Then upgraded to 5.0 and i had upgrade related issues which i had another thread. But due to time constraints we just uninstalled 4.4 completely and did a fresh 50 install. All worked except php fix. After php fix all is good except snmp interface. yesterday got a new RHEL 8.0 server , installed everything as per instructions , everything worked except SNMP interface there too. So I dont know what can i try ? my snmpwalk and snmptrap works on rhel 7 and snmpwalk works on rhel 8

[rajsolanki]

So i was curious what can i do to fix this or debug this ? coz its happened on RHEL 7 and 8 .

[rajsolanki]

or can i directly add to some Database table to enable SNMP interface ?