Report Manager (5.4) not working / starting on Ubuntu 20.04

[marcinch]

Hi All,

I've been running Zabbix for couple months with no issues. System is version 5.4 running on Ubuntu 20.04.3 on AWS. Last Tuesday, November 1st something happened that cause report manager service to fail. In the zabbix server log I can see entries like below. I have turned OFF report manager for now by changing StartReportWriters=0 in server conf file. When enabled, this issue generates ton of entries like below in seconds and consumes 100% CPU. Initially I had log file to set up to unlimited size which filled disk space very quickly, within few hours (60GB).

I keep mandatory updates installed on Ubuntu and suspect this might have happened after recent batch, but not 100% sure.

Any suggestions how to fix report manager service?

Thanks,

369530:20221107:091951.166 === Backtrace: ===
369530:20221107:091951.167 13: /usr/sbin/zabbix_server: report manager Home started(zbx_backtrace+0x52) [0x562228a27628]
369530:20221107:091951.167 12: /usr/sbin/zabbix_server: report manager Home started(+0x26fbc9) [0x562228a53bc9]
369530:20221107:091951.167 11: /usr/sbin/zabbix_server: report manager Home started(zbx_tm_add+0x5f) [0x562228a53f6f]
369530:20221107:091951.167 10: /usr/sbin/zabbix_server: report manager Home started(zbx_get_report_nextcheck+0x1c2) [0x562228a4622d]
369530:20221107:091951.167 9: /usr/sbin/zabbix_server: report manager Home started(+0xa772c) [0x56222888b72c]
369530:20221107:091951.167 8: /usr/sbin/zabbix_server: report manager Home started(+0xa8351) [0x56222888c351]
369530:20221107:091951.167 7: /usr/sbin/zabbix_server: report manager Home started(+0xa931e) [0x56222888d31e]
369530:20221107:091951.167 6: /usr/sbin/zabbix_server: report manager Home started(report_manager_thread+0x364) [0x56222888f84a]
369530:20221107:091951.167 5: /usr/sbin/zabbix_server: report manager Home started(zbx_thread_start+0x3b) [0x562228a38b5d]
369530:20221107:091951.167 4: /usr/sbin/zabbix_server: report manager Home started(MAIN_ZABBIX_ENTRY+0x12b2) [0x56222883bec2]
369530:20221107:091951.167 3: /usr/sbin/zabbix_server: report manager Home started(daemon_start+0x2f9) [0x562228a2716a]
369530:20221107:091951.167 2: /usr/sbin/zabbix_server: report manager Home started(main+0x2a7) [0x56222883aaf2]
369530:20221107:091951.167 1: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7fd158620083]
369530:20221107:091951.167 0: /usr/sbin/zabbix_server: report manager Home started(_start+0x2e) [0x56222883996e]
zabbix_server [369530]: ERROR [file and function: <time.c,tm_add_seconds>, revision:d81e50696f, line:108] Something impossible has just happened.

[marcinch]

Update on this:

- upgraded to Zabbix to 6.0.10, updated tables - same thing,
- set up new Ubuntu 22.04 LTS instance, clean installed MariaDB, Zabbix 6.0.10, migrated database and config - same thing,
- removed my Scheduled Reports - report manager starts fine,
- created scheduled report again - report manager starts, it still logged crash twice, then finally started.

It seems like issue with Zabbix running on latest Ubuntu (no idea about other versions).



Besides my report I can see:

[marcinch]

Issue seems resolved:

- updated timezones in OS and php.ini file to match Zabbix

Info about time calculation error is gone, so is report manager crash no more in the log after restarting Zabbix server.