os: Scientific Linux release 6.0 (Carbon)
kernel: 2.6.32-71.el6.x86_64
virtual hardware: KVM, [email protected], 2GB Memory
hypervisor hardware: Dell PowerEdge M610, [email protected], 48GB Memory, 18 guests total

Thanks for the details, we are working on it. Meanwhile, if possible, try to use the official 2.0.0 and report back if it works.

Hey Alexei,

The official 2.0.0 version worked a bit better (and by better I mean it ran longer before crashing) than rc5, although we still saw some crashes. I ran zabbix_server in debug mode, although it doesn't appear that added any additional information from the crash. Attached is the log for the latest crash.

Here are our configure options:
%configure \
--with-mysql \
--with-libcurl \
--with-openipmi \
--with-jabber \
--enable-server \
--enable-proxy \
--enable-agent \
--enable-java \
--with-net-snmp \
--prefix=%{_sysconfdir} \
--exec-prefix=%{_prefix} \
--bindir=%{_bindir} \
--sbindir=%{_sbindir} \
--mandir=%{_mandir} \
--libdir=%{_libdir} \
--sysconfdir=%{_sysconfdir}

Hey Alexander,

Let me know if there's any more information you want/need for this issue and I'll gladly get it to you.

It's happening to me too with Zabbix 2.0.0, monitoring a tomcat server through a proxy. As soon as the proxy sends data to the server, the server process crashes. The problem stopped only when I removed all JMX items from every host.

My server version:

Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: Starting Zabbix Server. Zabbix 2.0.0 (revision 27675).
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: ****** Enabled features ******
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: SNMP monitoring: YES
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: IPMI monitoring: YES
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: WEB monitoring: YES
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: Jabber notifications: NO
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: Ez Texting notifications: YES
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: ODBC: NO
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: SSH2 support: YES
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: IPv6 support: YES
Jun 26 12:03:12 PHSRVBACKUP Zabbix server[31905]: ******************************

another jmx related crash : ZBX-5297

Same crash here:

8685:20120718:110600.375 item [dmz01:jmx["java.lang:type=Memory","HeapMemoryUsage.used"]] became not supported: Connection
refused to host: 192.168.0.100; nested exception is:
java.net.ConnectException: Connection refused
8685:20120718:110600.479 Got signal [signal:11(SIGSEGV),reason:1,refaddr:(nil)]. Crashing ...
8685:20120718:110600.479 ====== Fatal information: ======
...
8685:20120718:110600.479 === Backtrace: ===
8685:20120718:110600.480 12: /opt/zabbix/sbin/zabbix_server(print_fatal_info+0x277) [0x448017]
8685:20120718:110600.480 11: /opt/zabbix/sbin/zabbix_server() [0x44750c]
8685:20120718:110600.480 10: /lib64/libc.so.6() [0x37e2832900]
8685:20120718:110600.480 9: /lib64/libc.so.6() [0x37e2924cba]
8685:20120718:110600.480 8: /opt/zabbix/sbin/zabbix_server() [0x43bcb2]
8685:20120718:110600.480 7: /opt/zabbix/sbin/zabbix_server(DCconfig_set_trigger_value+0x5f) [0x43bd2f]
8685:20120718:110600.480 6: /opt/zabbix/sbin/zabbix_server(DCflush_nextchecks+0x338) [0x43a008]
8685:20120718:110600.480 5: /opt/zabbix/sbin/zabbix_server(DCsync_history+0x13dc) [0x43920c]
8685:20120718:110600.480 4: /opt/zabbix/sbin/zabbix_server(main_dbsyncer_loop+0xe7) [0x4127c7]
8685:20120718:110600.480 3: /opt/zabbix/sbin/zabbix_server(MAIN_ZABBIX_ENTRY+0xa26) [0x411a96]
8685:20120718:110600.480 2: /opt/zabbix/sbin/zabbix_server(daemon_start+0x22f) [0x44724f]
8685:20120718:110600.480 1: /lib64/libc.so.6(__libc_start_main+0xfd) [0x37e281ecdd]
8685:20120718:110600.480 0: /opt/zabbix/sbin/zabbix_server() [0x40d5d9]
...
8657:20120718:110600.485 One child process died (PID:8685,exitcode/signal:255). Exiting ...
8657:20120718:110602.488 syncing history data...
8657:20120718:110602.495 syncing history data done
8657:20120718:110602.495 syncing trends data...
8657:20120718:110602.592 syncing trends data done
8657:20120718:110602.592 Zabbix Server stopped. Zabbix 2.0.1 (revision 28455).

Fixed in the development branch svn://svn.zabbix.com/branches/dev/ZBX-5031

Successfully tested.

Fixed in pre-2.0.2 r29130 and pre-2.1.0 (beta) r29131