[ZBX-9960] ODBC error: file not found Created: 2015 Oct 15 Updated: 2017 May 30 Resolved: 2015 Oct 19 |
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| Status: | Closed |
| Project: | ZABBIX BUGS AND ISSUES |
| Component/s: | Server (S) |
| Affects Version/s: | 2.4.6 |
| Fix Version/s: | None |
| Type: | Incident report | Priority: | Major |
| Reporter: | Bruno Galindro da Costa | Assignee: | Unassigned |
| Resolution: | Duplicate | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Environment: |
root@zabbix:~# dpkg -l |grep zabbix root@zabbix:~# dpkg -l |grep odbc root@zabbix:~# lsb_release -a
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| Issue Links: |
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| Description |
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I've setup a database monitor item to make a simple query in a MySQL database through ODBC. This is my Item configuration. I'll show only the parameters that I have changed: Name: Ticket count The above item was created in a template called "Template OTRS Stats" and it was associated to the mysql host. My Zabbix server is compiled with ODBC support as showed in "Environment" section. The latest mysql odbc driver (mysql-connector-odbc-5.2.7-linux-glibc2.5-x86-64bit) downloaded from https://dev.mysql.com/downloads/connector/odbc/5.1.html was installed under /etc/zabbix/ and the owner of the files is the zabbix user: root@zabbix:~# ls -lh /etc/zabbix/libmyodbc5* -rwxr-xr-x 1 zabbix zabbix 8,9M Out 15 12:45 /etc/zabbix/libmyodbc5a.so -rwxr-xr-x 1 zabbix zabbix 8,9M Out 15 12:45 /etc/zabbix/libmyodbc5w.so There's no immutable flag set on those libraries: root@zabbix:~# lsattr /etc/zabbix/libmyodbc5* -------------e-- /etc/zabbix/libmyodbc5a.so -------------e-- /etc/zabbix/libmyodbc5w.so The unixODBC package is installed as showed in "Environment" section too. Here are the config files: root@zabbix:~# cat /etc/odbcinst.ini [mysql_unicode] Driver=/etc/zabbix/libmyodbc5w.so [mysql_ansi] Driver=/etc/zabbix/libmyodbc5a.so root@zabbix:~# cat /etc/odbc.ini [mysql56_otrs] Driver=mysql_unicode Server=mysqlserver.domain Database=otrs Port=3306 Option=3 User=***** Password=****** I can connect to mysql server from zabbix server using isql: root@zabbix:~# isql mysql56_otrs +---------------------------------------+ | Connected! | | | | sql-statement | | help [tablename] | | quit | | | +---------------------------------------+ SQL> select count(id) as total from ticket +---------------------+ | total | +---------------------+ | 70465 | +---------------------+ SQLRowCount returns 1 1 rows fetched SQL> quit The item was not in unsupported state. But no data is registered under last data. So, I've turned zabbix into debug mode (debuglevel=4) and finally I've see an error message: 13849:20151015:122800.165 In substitute_key_macros() data:'db.odbc.select[otrs.count.ticket,mysql56_otrs]' 13849:20151015:122800.167 End of substitute_key_macros():SUCCEED data:'db.odbc.select[otrs.count.ticket,mysql56_otrs]' 13849:20151015:122800.173 In get_value() key:'db.odbc.select[otrs.count.ticket,mysql56_otrs]' 13849:20151015:122800.175 In get_value_db() key_orig:'db.odbc.select[otrs.count.ticket,mysql56_otrs]' 13849:20151015:122800.177 In odbc_DBconnect() db_dsn:'mysql56_otrs' user:'' 13849:20151015:122800.182 odbc_Diag(): rc_msg:'SQL_ERROR' rec_nr:1 sql_state:'01000' native_err_code:0 err_msg:'[unixODBC][Driver Manager]Can't open lib '/etc/zabbix/libmyodbc5w.so' : file not found' 13849:20151015:122800.184 End of odbc_DBconnect():FAIL Why zabbix can't open lib '/etc/zabbix/libmyodbc5w.so' ??? |
| Comments |
| Comment by Aleksandrs Saveljevs [ 2015 Oct 16 ] |
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We do not load /etc/zabbix/libmyodbc5w.so ourselves - instead, we rely on unixODBC library to do that. It might be better to discuss that on https://www.zabbix.org/wiki/Getting_help. Regarding the item not being in an unsupported state, this might indicate a bug. Could you please show a longer part of the log? |
| Comment by Oleksii Zagorskyi [ 2015 Oct 16 ] |
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Test by "isql" command should be done under "zabbix" account only, to make sure it will work for zabbix server too. We know issues where users performed incorrect installation of a driver and as result wrong permissions for driver or its dependent files (as for "zabbix" user) caused not working related odbc checks. |
| Comment by Bruno Galindro da Costa [ 2015 Oct 18 ] |
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Aleksandrs, Thanks for return. I've openned this issue because all tests covered by official zabbix documentation are done fine. Why should I discuss this on that lists? Sorry, but I'm little convinced that this is realy a bug on Zabbix Server, not with unixODBC, just because isql test works fine for root and for zabbix user (as you can see bellow). Is there any other tests that I could do to prove my suspicion? Regarding the log files, I'll attach them on this case. Oleksiy, I've tested with zabbix account and it works fine: zabbix@zabbix:~$ isql mysql56_otrs --------------------------------------- Connected! sql-statement help [tablename] quit --------------------------------------- SQL> select count(id) as total from ticket --------------------- total --------------------- 70631 --------------------- SQLRowCount returns 1 1 rows fetched SQL> quit |
| Comment by Bruno Galindro da Costa [ 2015 Oct 18 ] |
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This is a 4 minute debug log from our zabbix server. It represents a lot of information, because we have a lot of monitored hosts. But fortunatelly it has an odbc item execution log: 4567:20151017:185856.954 In substitute_key_macros() data:'db.odbc.select[otrs.count.ticket,mysql56_otrs]' |
| Comment by Aleksandrs Saveljevs [ 2015 Oct 19 ] |
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Bruno, thank you for the log! The lines you quoted are the only relevant lines, so we shall remove the attachment so that it does not take space and so that any private information is not on the Internet. It can be seen from the log that it connects successfully (so the error mentioned in the issue description is not there anymore). However, it can be seen that Zabbix just hangs in odbc_DBselect(). This is exactly the behavior described in one of my comments in
This seems to be a bug in MySQL ODBC that we have already reported. Please see |
| Comment by Bruno Galindro da Costa [ 2015 Oct 19 ] |
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Oh sorry. I haven't noticed that the log shows a successfull connection. =) After read Brian Chand added a comment - 2014 Jun 09 21:4 But my Zabbix Server crashed. 10905:20151019:072430.740 Got signal [signal:11(SIGSEGV),reason:1,refaddr:0x7ffee136ef93]. Crashing ... The versions that I've used was: 5.1.13 All of those above versions aren't available in official Ubuntu 14.04 repositories. The version that is available in the official repo is 5.1.10-3. For Ubuntu 12.04, is 5.1.10-1. I've tried to use those versions above because I've noticed another bug with mysql driver version 5.1.10-1 and mysql server 5.6 as reported here: https://mariadb.atlassian.net/browse/MDEV-6086. I could reproduce this bug from the host that my MySQL Server 5.6 is installed, wich is running in an Ubuntu 12.04. Now, I've installed the 5.1.10-3 on my Zabbix Server to make a test. My Zabbix Server, as mentioned before, is running under an Ubuntu 14.04. And the result is: it works very well!!! No core dumps in isql (as noticed in ubuntu 12.04 with 5.1.10-1) and no crash in Zabbix Server (as noticed with 5.1.13 and 5.2.7 ansi / unicode). Now I've the Database monitor item working very well, collecting data, generating thrends, graphs, ... I think this could be the best workarround to do for people that uses Ubuntu as Zabbix Server O.S. Could you please link this ticket with Thank you very much for patience and attention Aleksandrs. |
| Comment by Aleksandrs Saveljevs [ 2015 Oct 19 ] |
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This ticket is already linked to |
| Comment by Bruno Galindro da Costa [ 2015 Oct 19 ] |
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=) |