So here is what happened. The Mariadb-server 10 installation does replace a file that the mysql-connector-odbc driver depends upon. However, I used the red hat enterprise driver at: https://downloads.mariadb.org/connector-odbc/ copied it to /usr/lib64/libmaodbc.so ...added the following text to: /etc/odbcinst.ini [maodbc] Driver = /usr/lib64/libmaodbc.so Description = MariaDB ODBC Connector ...redirected dns connection to the new driver. Now mariadb-server 10 can be added without causing any troubles. I used the repository at mariadb.org, but I am sure that using the SIG repository would also be fine. At the moment, I did not find the driver packaged specifically for centos. On Fri, Nov 3, 2017 at 11:01 AM, John Harragin <jharragi at mw.k12.ny.us> wrote: > I think the solution may exist. > > The compatibility of mysql-connector-odbc with maria may just means the > driver can access the mariadb - but my experience suggests not live on the > same host. > > maria has its own connector: > https://downloads.mariadb.org/connector-odbc/ > > it does not look like this is in the sig, so I'll have to turn to the > maria repo. > > I'll try replacing the driver first, then install the server - and I may > be good to go. > > On Fri, Nov 3, 2017 at 10:23 AM, John Harragin <jharragi at mw.k12.ny.us> > wrote: > >> What I have found is that the only new shared objects between the >> different versions of the running isqls is: >> >> < lrwxrwxrwx. 1 root root 24 Oct 31 21:25 /usr/lib64/mysql/libmysqlclient.so.18 >> -> libmysqlclient.so.18.0.0 >> > lrwxrwxrwx. 1 root root 24 Nov 2 12:13 /usr/lib64/mysql/libmysqlclient.so.18 >> -> libmysqlclient.so.18.0.0 >> >> ... also this is the only shared object with a different node-ID between >> the 2 instances. >> >> >> From the journal: >> >> Nov 02 12:17:23 ec-ast kernel: isql[39065]: segfault at 10070 ip >> 00007ff0998b3f7e sp 00007ffc9693bb90 error 4 in >> libmyodbc5w.so[7ff09988d000+47000] >> >> # yum search odbc | grep -E "my|mar" >> mysql-connector-odbc.x86_64 : ODBC driver for MySQL >> >> [root at ec-ast unixodbcproblem]# yum info mysql-connector-odbc.x86_64 >> Loaded plugins: fastestmirror >> Loading mirror speeds from cached hostfile >> * base: mirrors.lga7.us.voxel.net >> * epel: epel.mirror.constant.com >> * extras: mirror.atlanticmetro.net >> * updates: mirror.atlanticmetro.net >> Installed Packages >> Name : mysql-connector-odbc >> Arch : x86_64 >> Version : 5.2.5 >> Release : 6.el7 >> Size : 427 k >> Repo : installed >> From repo : base >> Summary : ODBC driver for MySQL >> URL : http://dev.mysql.com/downloads/connector/odbc/ >> License : GPLv2 with exceptions >> Description : An ODBC (rev 3) driver for MySQL, for use with unixODBC. >> >> yum whatprovides '*libmyodbc5w.so' >> ...indicates that this is the only source (for my Repo list) for this >> package which contains the segfaulting file. >> >> ... >> >> On Thu, Nov 2, 2017 at 1:38 PM, John Harragin <jharragi at mw.k12.ny.us> >> wrote: >> >>> OK, I tried again. I ran the following series of commands (some output >>> in attached file): >>> >>> On a separate session, the first sqli process 29669 worked continually. >>> On a separate session (after mariadb-server 10.1 is installed), isql >>> opens (proc 39065), but SegFaults upon running a query. >>> >>> >>> mkdir /tmp/unixodbcproblem >>> ps -A | grep isql >>> PROCESS=29669 >>> lsof | grep ${PROCESS} > /tmp/unixodbcproblem/lsof.${PROCESS} >>> for f in $(pldd ${PROCESS}); do ls -l $f; done > >>> /tmp/unixodbcproblem/pldd.${PROCESS} >>> yum install mariadb-server >>> ps -A | grep isql >>> PROCESS=39065 >>> lsof | grep ${PROCESS} > /tmp/unixodbcproblem/lsof.${PROCESS} >>> for f in $(pldd ${PROCESS}); do ls -l $f; done > >>> /tmp/unixodbcproblem/pldd.${PROCESS} >>> setenforce 0 # Ran isql again. Still segmentation >>> fault. Just to make sure this not the problem >>> sestatus >>> yum history list # This reported the most recent >>> mariadb-server install as: 53 >>> yum history undo 53 >>> exit >>> >>> # ls /tmp/unixodbcproblem/ >>> lsof.29669 lsof.39065 pldd.29669 pldd.39065 >>> >>> >>> >>> This is what I get when mariadb-server 10.1 is installed: >>> >>> # isql -vv mccmysql ec-ast ec >>> +---------------------------------------+ >>> | Connected! | >>> | | >>> | sql-statement | >>> | help [tablename] | >>> | quit | >>> | | >>> +---------------------------------------+ >>> SQL> SELECT e_extnum FROM ext LIMIT 5; >>> Segmentation fault >>> >>> >>> This is what I get when mariadb-server is not installed: >>> >>> # isql -vv mccmysql ec-ast ec >>> +---------------------------------------+ >>> | Connected! | >>> | | >>> | sql-statement | >>> | help [tablename] | >>> | quit | >>> | | >>> +---------------------------------------+ >>> SQL> SELECT e_extnum FROM ext LIMIT 1; >>> +---------+ >>> | e_extnum| >>> +---------+ >>> | 6011 | >>> +---------+ >>> SQLRowCount returns 1 >>> 1 rows fetched >>> SQL> quit >>> >>> >>> I going to sed & diff... these files to see what I find. If anyone has >>> any suggestions of tools for this type of investigation, I would love to >>> hear about it. >>> >>> John >>> >> >> >