[ZBX-16775] Zabbix needs php-json (and is not installed) in zabbix official repository (at least in CentOS 8.x) Created: 2019 Oct 15 Updated: 2020 Aug 25 Resolved: 2020 Aug 25 |
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| Status: | Closed |
| Project: | ZABBIX BUGS AND ISSUES |
| Component/s: | Frontend (F) |
| Affects Version/s: | 4.4.0 |
| Fix Version/s: | None |
| Type: | Incident report | Priority: | Trivial |
| Reporter: | André Pereira da Silva | Assignee: | Kristians Pavars |
| Resolution: | Won't fix | Votes: | 0 |
| Labels: | CentOS, Frontend, JSON, PHP | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
CentOS 8.x |
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| Description |
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After installing zabbix from zabbix repository and making some monitoring i start to get some errors in php error log. After investigation the issue is php-json package is not installed when installing from zabbix offical repository. Manually installing php-json solves the issue. PHP Fatal error: Uncaught Error: *Call to undefined function json_encode() in /usr/share/zabbix/include/func.inc.php:1833*
Stack trace:
#0 /usr/share/zabbix/include/classes/mvc/CController.php(330): access_deny(1)
#1 /usr/share/zabbix/include/classes/core/ZBase.php(392): CController->run()
#2 /usr/share/zabbix/include/classes/core/ZBase.php(158): ZBase->processRequest(Object(CRouter))
#3 /usr/share/zabbix/include/config.inc.php(33): ZBase->run('default')
#4 /usr/share/zabbix/zabbix.php(21): require_once('/usr/share/zabb...')
Also, if php json extension is needed, IMHO it should be listed as a requirement in zabbix install page (as are others required php extensions). |
| Comments |
| Comment by Arturs Lontons [ 2019 Oct 16 ] |
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Hi, Have you made any specific changes to the configuration after which the issue was detected? Simply installing the packages on Centos 8 does not seem to produce the error message described in the bug report. Regards, |
| Comment by Edgar Akhmetshin [ 2019 Oct 17 ] |
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Hi, Could you also please clarify repository list used (all enabled repo) for the system during Zabbix installation? Regards, |
| Comment by André Pereira da Silva [ 2019 Oct 20 ] |
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Only used zabbix offical repository, all others are CentOS official repos + epel. https://repo.zabbix.com/zabbix/4.4/rhel/8/x86_64/zabbix-release-4.4-1.el8.noarch.rpm I don't know what particulary steps i made. using zabbix 4.4 for 2 weeks until noticed that error in the log, installed php-json extension (dnf install php-json, restarted php-fpm service and no more error). This is in a brand new CentOS 8.x installation. Anyway having PHP function "json_encode" (https://www.php.net/manual/en/function.json-encode.php) in zabbix web frontend code (as you see above in the stack trace and in https://github.com/zabbix/zabbix/blob/master/frontends/php/include/func.inc.php#L1813) means the php-json extension is needed (or will give that error in some circumstance), so that extension should a dependency on install.
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| Comment by Kristians Pavars [ 2020 Aug 25 ] |
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Hi andre.silva,
Not sure how you ran into this error. Doing a fresh install of zabbix-web-mysql Zabbix 4.4.9 on Centos 8 installs php-json as dependency:
[kp@centos8 ~]$ sudo dnf install zabbix-web-mysql
Last metadata expiration check: 0:08:22 ago on Tue Aug 25 10:01:33 2020.
Dependencies resolved.
======================================================================================================================== Package Architecture Version Repository Size
========================================================================================================================Installing:
zabbix-web-mysql noarch 4.4.10-1.el8 zabbix 15 k
Installing dependencies:
dejavu-fonts-common noarch 2.35-6.el8 BaseOS 74 k
dejavu-sans-fonts noarch 2.35-6.el8 BaseOS 1.5 M
httpd-filesystem noarch 2.4.37-21.module_el8.2.0+382+15b0afa8 AppStream 36 k
nginx-filesystem noarch 1:1.14.1-9.module_el8.0.0+184+e34fea82 AppStream 24 k
php-bcmath x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 79 k
php-common x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 661 k
php-fpm x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 1.6 M
php-gd x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 84 k
php-json x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 73 k
php-ldap x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 79 k
php-mbstring x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 580 k
php-mysqlnd x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 190 k
php-pdo x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 122 k
php-xml x86_64 7.2.24-1.module_el8.2.0+313+b04d0a66 AppStream 188 k
zabbix-web noarch 4.4.10-1.el8 zabbix 2.9 M
Enabling module streams:
httpd 2.4
nginx 1.14
php 7.2Transaction Summary
========================================================================================================================Install 16 PackagesTotal download size: 8.2 M
Installed size: 37 M
Is this ok [y/N]:y
I will close this ticket as there seems to be no issue here but a one-off.
Regards,
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