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[Samuel Winchenbach <swinchen@xxxxxxxxx>]

#1 - No change
#2 - All of grants are in the ip/mask form such as: 'nova'@'
10.21.0.0/255.255.0.0'  I have also tried adding 'nova'@'test1' and
'nova'@'10.21.0.1'.
 No change.
#3 - I changed the SQL connection string over to IP instead of hostname.
 No change.  I didn't restart nova-api because it isn't running.   If I
understand correctly nova-manage communicated directly with the db,
bypassing nova-api.   This would appear true seeing "nova-manage service
list" works correctly on test2.


:(

Thanks for the help!
Sam


On Mon, Mar 11, 2013 at 12:24 PM, Sylvain Bauza
<sylvain.bauza@xxxxxxxxxxxx>wrote:

>  When looking at MySQL 5.1 refman (
> http://dev.mysql.com/doc/refman/5.1/en/access-denied.html ), I would
> suggest to follow the procedure :
>  1. 'mysqladmin flush-hosts'
>  2. replace DNS entries in mysql.user table by IP addresses instead
>  3. modify /etc/nova/nova.conf with IP address of HA Mysql instead (and
> restart nova-api !)
>
> I wouldn't bet on it, but I would say this is due to some name resolution
> which is incorrect.
>
> -Sylvain
>
>
> Le 11/03/2013 17:00, Sylvain Bauza a écrit :
>
> Ok, lemme try to summarize.
> You do have a DRBD setup for MySQL bound to a VIP 10.21.1.1 thanks to
> Pacemaker.
> This setup is relying on two hosts, test1 (10.21.0.1) and test2
> (10.21.0.2).
> Your nova.conf is pointing to mysql://10.21.1.1 which is the VIP.
>
> Are you sure your my.cnf is actually the same in between both DRBD nodes ?
> (I would recommend to symlink it to a physical file hosted on the DRBD
> device).
>
> One thing is hurting me : you told me that nova is also pacemake'd. If so,
> why can I still see my_ip=10.21.0.2 (test2) ? It should be pointing to
> nova-ha (assuming 10.21.2.4 as per /etc/hosts).
>
> Also, as per my understanding of Pacemaker, DRBD partition is setup by
> default on test2, correct ?
>
>
> Sorry, as per my first reading, I can't see anything obvious. That said,
> I'm not sure this is a Nova bug, as the tcpdump trace is seeing a correct
> MySQL connection attempt. But maybe I'm wrong ?
>
> Anyway, are you sure you only have *one* MySQL engine running (either on
> test1 or test2) and nova-manage trying to access this right one ?
>
> Perms look good to me. As it a test setup, you could try to unleash the
> grants by deleting them and allowing nova@'%' to see if it's a basic dns
> mapping issue.
>
> -Sylvain
>
>
>
> Le 11/03/2013 16:09, Samuel Winchenbach a écrit :
>
> I
> enabled general_log in /etc/mysql/my.cnf  Here are the results of
> connecting from "test1", "test2" and using the client:
>  http://paste2.org/p/3115525
>  I purposefully used the real password in case there is a problem with
> it.
>  I changed before submitting post.
>
>   here is a raw packet TCP dump (tcpdump -w rawdump port 3306) of an
> attempted "nova-manage service list" from test1:
>  https://www.dropbox.com/s/u4cjzxv6w6bwwe6/rawdump
>
>  I looked at it with wireshark and couldn't see anything that jumped out
> at me as incorrect.  I have not yet tried to recreate the salted password.
>
>
>   Here is my pacemaker configuration for mysql.  I stripped out openstack
> services, rabbitmq and others for clarity.  All resources are currently
> disabled (other than MySQL):
> http://paste2.org/p/3115685
>
>
>   Please don't yell at me for having STONITH disabled :P  This is a
> testing cluster and I am working on getting routed to the IPMI interface.
>
>   /etc/hosts:
> http://paste2.org/p/3115713
>   /etc/nova/nova.conf:
> http://paste2.org/p/3115739
>
>
>   If there is anything else I can provide you, please let me know!  I
> have pulled out most of my hair at this point!
>
>   Sam
>
>
>
>
> On Mon, Mar 11, 2013 at 10:11 AM, Sylvain Bauza <
> sylvain.bauza@xxxxxxxxxxxx> wrote:
>
>>  So as to reproduce the nova-manage SQL command, I would recommand to
>> tcpdump -A port 3306 on the host and get the SQL trace on what's failing.
>>
>> Could you please explain further what is your HA config ? Are you using
>> pacemaker/heartbeat or any VIP ?
>>
>> -Sylvain
>>
>> Le 11/03/2013 14:23, Samuel Winchenbach a écrit :
>>
>>  Does anyone think this could be an openstack bug?  I just want to check
>> before submitting a bug report.
>>
>>  Sam
>>
>>
>> On Fri, Mar 8, 2013 at 4:02 PM, Jay Pipes <jaypipes@xxxxxxxxx> wrote:
>>
>>> Sorry, I really can't think of anything :(
>>>
>>> On 03/08/2013 03:52 PM, Samuel Winchenbach wrote:
>>> > I dropped those users and no change.
>>> >
>>> > I also set up general logging in mysql but it really doesn't provide
>>> any
>>> > additional information.  Any idea for a next step I could take?
>>> >
>>> > I am almost at the point of taking a tcpdump and trying to recreate the
>>> > salted password.  :/
>>> >
>>> > Thanks for the help
>>> >
>>> > Sam
>>> >
>>> >
>>> >
>>> >
>>> > On Fri, Mar 8, 2013 at 3:38 PM, Jay Pipes <jaypipes@xxxxxxxxx
>>>  > <mailto:jaypipes@xxxxxxxxx>> wrote:
>>> >
>>> >     I'm stumped :( Looks like everything is set up correctly to me.
>>> What is
>>> >     interested is that your nova user access works from test2, but
>>> there is
>>> >     no nova@test2 user in the mysql.user table. What about doing a
>>> DROP USER
>>> >     nova@test1; FLUSH PRIVILEGES; and then see if that fixes
>>> things... since
>>>  >     the nova@10.21.0.0/255.255.0.0 <http://nova@10.21.0.0/255.255.0.0
>>> >
>>> >     user is clearly working for the access
>>> >     from test2.
>>> >
>>> >     Also, I'd recommend highly removing the nova@% user.
>>> >
>>> >     Best,
>>> >     -jay
>>> >
>>> >     On 03/08/2013 03:09 PM, Samuel Winchenbach wrote:
>>> >     >
>>> >     > http://paste2.org/p/3085807
>>> >     >
>>> >     >
>>> >     > On Fri, Mar 8, 2013 at 2:46 PM, Jay Pipes <jaypipes@xxxxxxxxx
>>> >     <mailto:jaypipes@xxxxxxxxx>
>>>  >     > <mailto:jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>>> wrote:
>>> >     >
>>>  >     >     Please paste the results of SELECT User, Host, Password
>>> FROM
>>> >     mysql.user
>>> >     >     when running as root...
>>> >     >
>>> >     >     Thanks!
>>> >     >     -jay
>>> >     >
>>> >     >     On 03/08/2013 02:25 PM, Samuel Winchenbach wrote:
>>> >     >     > Here are my grants.  I don't know if this helps, but I did
>>> >     verify that
>>> >     >     > the password was identical for each grant:
>>> >     >      http://paste2.org/p/3085361
>>> >     >     >
>>> >     >     >
>>> >     >     > On Fri, Mar 8, 2013 at 2:17 PM, Samuel Winchenbach
>>> >     >     <swinchen@xxxxxxxxx <mailto:swinchen@xxxxxxxxx>
>>> >     <mailto:swinchen@xxxxxxxxx <mailto:swinchen@xxxxxxxxx>>
>>> >     >     > <mailto:swinchen@xxxxxxxxx <mailto:swinchen@xxxxxxxxx>
>>> >     <mailto:swinchen@xxxxxxxxx <mailto:swinchen@xxxxxxxxx>>>> wrote:
>>> >     >     >
>>> >     >     >     root@test1:/var/log# mysql -hmysql-ha -unova
>>> >     >     >     -p******************************** -e"SELECT User,
>>> Host,
>>> >     Password
>>> >     >     >     FROM mysql.user;"
>>> >     >     >     ERROR 1142 (42000) at line 1: SELECT command denied to
>>> user
>>> >     >     >     'nova'@'test1' for table 'user'
>>> >     >     >
>>> >     >     >
>>> >     >     >     On Fri, Mar 8, 2013 at 2:06 PM, Jay Pipes
>>> >     <jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>
>>> >     >     <mailto:jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>>
>>>   >     >     >     <mailto:jaypipes@xxxxxxxxx <mailto:
>>> jaypipes@xxxxxxxxx>
>>> >     <mailto:jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>>>> wrote:
>>> >     >     >
>>> >     >     >         What does this show?
>>> >     >     >
>>> >     >     >         mysql -hmysql-ha -unova -p<PASS> -e"SELECT User,
>>> Host,
>>> >     >     Password FROM
>>> >     >     >         mysql.user"
>>> >     >     >
>>> >     >     >         -jay
>>> >     >     >
>>> >     >     >         On 03/08/2013 01:46 PM, Samuel Winchenbach wrote:
>>> >     >     >         > Sorry, that must have been a copy and paste
>>> error.
>>> >      Here
>>> >     >     is what I
>>> >     >     >         > actually ran:
>>> >     >     >         >
>>> >     >     >         > http://paste2.org/p/3084996
>>> >     >     >         >
>>> >     >     >         >
>>> >     >     >         > On Fri, Mar 8, 2013 at 12:40 PM, Jay Pipes
>>> >     >     <jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>
>>> >     <mailto:jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>>
>>> >     >     >         <mailto:jaypipes@xxxxxxxxx
>>> >     <mailto:jaypipes@xxxxxxxxx> <mailto:jaypipes@xxxxxxxxx
>>> >     <mailto:jaypipes@xxxxxxxxx>>>
>>> >     >     >         > <mailto:jaypipes@xxxxxxxxx
>>> >     <mailto:jaypipes@xxxxxxxxx> <mailto:jaypipes@xxxxxxxxx
>>> >     <mailto:jaypipes@xxxxxxxxx>>
>>> >     >     <mailto:jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>
>>> >     <mailto:jaypipes@xxxxxxxxx <mailto:jaypipes@xxxxxxxxx>>>>> wrote:
>>> >     >     >         >
>>> >     >     >         >     On 03/08/2013 12:19 PM, Samuel Winchenbach
>>> wrote:
>>> >     >     >         >     > Hi All,
>>> >     >     >         >     >
>>> >     >     >         >     > I have two nodes (test1 and test2) that I
>>> am
>>> >     trying to
>>> >     >     >         set up in a
>>> >     >     >         >     > highly available configuration.
>>> >     >     >         >     >
>>> >     >     >         >     > During the setup process I tried running
>>> >     "nova-manage
>>> >     >     >         service list" on
>>> >     >     >         >     > both nodes.   It worked fine on test2, but
>>> >     fails on
>>> >     >     >         test1 even
>>> >     >     >         >     though I
>>> >     >     >         >     > can connect to the database with the mysql
>>> >     client from
>>> >     >     >         test1.
>>> >     >     >         >     >
>>> >     >     >         >     > Here is a screen capture that shows the
>>> setup on
>>> >     >     the two
>>> >     >     >         nodes are
>>> >     >     >         >     > basically identical:
>>> >      http://paste2.org/p/3084223
>>> >     >     >         >
>>> >     >     >         >     In the above paste you are doing:
>>> >     >     >         >
>>> >     >     >         >     mysql -unova -       hmysql-ha -u  root
>>>  nova
>>> >     >     >         >     -p********************************
>>> >     >     >         >
>>> >     >     >         >     Note you are supplying 2 -u arguments, and
>>> mysql
>>> >     >     will take
>>> >     >     >         the second
>>> >     >     >         >     (root).
>>> >     >     >         >
>>> >     >     >         >     -jay
>>> >     >     >         >
>>> >     >     >         >
>>> _______________________________________________
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>>> >     >     <mailto:openstack@xxxxxxxxxxxxxxxxxxx
>>> >     <mailto:openstack@xxxxxxxxxxxxxxxxxxx>>>
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>>> >     >     <mailto:openstack@xxxxxxxxxxxxxxxxxxx
>>> >     <mailto:openstack@xxxxxxxxxxxxxxxxxxx>>
>>> >     >     >         <mailto:openstack@xxxxxxxxxxxxxxxxxxx
>>> >     <mailto:openstack@xxxxxxxxxxxxxxxxxxx>
>>> >     >     <mailto:openstack@xxxxxxxxxxxxxxxxxxx
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>>
>>
>>
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