postgres-xc-general Mailing List for Postgres-XC

Hi Donald,

This looks like a user permissions related internal bug in PGXC.

Regards,
Nikhils



On Thu, May 23, 2013 at 3:13 AM, Donald Keyass
<don...@gm...>wrote:

> The testdb and user were the very last thing I created after I created the
> node.
>
>
> On Wed, May 22, 2013 at 4:54 PM, Koichi Suzuki <koi...@gm...>wrote:
>
>> Did you issue CREATE NODE before you create databases/roles?   If you
>> CREATE NODE after you create databases/users, they are not visible to other
>> node and may fall into errors.   When you create each node by initdb, you
>> also create gtm's using initgtm, connect all the datanodes/coordinators to
>> the gtm and then issue CREATE NODE before you create anothing else.
>>
>>
>> You can visit
>> https://github.com/koichi-szk/PGXC-Tools/blob/master/pgxc_ctl/pgxc_ctlto look into pgxc_ctl shell script, which takes care of configuration,
>> failover, start and stop the cluster.   init_all function will be helpful
>> for you.  This shows what you should do to initialize your cluster.   The
>> C-version of pgxc_ctl will be included in coming 1.1 release with new
>> Postgres-XC feature.
>>
>> Regards;
>>
>
>
>
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The testdb and user were the very last thing I created after I created the
node.


On Wed, May 22, 2013 at 4:54 PM, Koichi Suzuki <koi...@gm...>wrote:

> Did you issue CREATE NODE before you create databases/roles?   If you
> CREATE NODE after you create databases/users, they are not visible to other
> node and may fall into errors.   When you create each node by initdb, you
> also create gtm's using initgtm, connect all the datanodes/coordinators to
> the gtm and then issue CREATE NODE before you create anothing else.
>
>
> You can visit
> https://github.com/koichi-szk/PGXC-Tools/blob/master/pgxc_ctl/pgxc_ctl to
> look into pgxc_ctl shell script, which takes care of configuration,
> failover, start and stop the cluster.   init_all function will be helpful
> for you.  This shows what you should do to initialize your cluster.   The
> C-version of pgxc_ctl will be included in coming 1.1 release with new
> Postgres-XC feature.
>
> Regards;
>

Did you issue CREATE NODE before you create databases/roles?   If you
CREATE NODE after you create databases/users, they are not visible to other
node and may fall into errors.   When you create each node by initdb, you
also create gtm's using initgtm, connect all the datanodes/coordinators to
the gtm and then issue CREATE NODE before you create anothing else.


​You can visit
https://github.com/koichi-szk/PGXC-Tools/blob/master/pgxc_ctl/pgxc_ctl to
look into pgxc_ctl shell script, which takes care of configuration,
failover, start and stop the cluster.   init_all function will be helpful
for you.  This shows what you should do to initialize your cluster.   The
C-version of pgxc_ctl will be included in coming 1.1 release with new
Postgres-XC feature.

Regards;

I'm running pg-xc 1.0.3 on debian linux (squeeze).

I have 3 boxes. 1 for GTM and 2 for datanodes and coordinators.

I have all three up and running.  1 GTM, 2 coordinators and 2 datanodes.
I log in as system user postgres.  I can create databases, create users,
select, etc...
So i created a database called testdb.  In the testdb, I created a table
called test_tab.
I can query it as postgres user thru both coordinators.

WHen I create a postgresql user:

CREATE ROLE testuser WITH LOGIN PASSWORD 'testpass';

GRANT ALL PRIVILEGES ON DATABASE testdb to testuser;

GRANT CONNECT ON DATABASE testdb TO testuser;
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO testuser;

I can see the table, but when i select from it, i get:
ERROR:  Failed to get pooled connections


I did this on each of the nodes:

/usr/local/pgsql/bin/psql -c "CREATE NODE datanode0 WITH (TYPE =
'datanode', PORT = 5433, HOST = '100.100.10.170')" postgres
/usr/local/pgsql/bin/psql -c "CREATE NODE datanode1 WITH (TYPE =
'datanode', PORT = 5433, HOST = '100.100.10.171')" postgres
/usr/local/pgsql/bin/psql -c "CREATE NODE coord0 WITH (TYPE =
'coordinator', PORT = 5432, HOST = '100.100.10.170')" postgres
/usr/local/pgsql/bin/psql -c "CREATE NODE coord1 WITH (TYPE =
'coordinator', PORT = 5432, HOST = '100.100.10.171')" postgres

and

/usr/local/pgsql/bin/psql -c "SELECT pgxc_pool_reload()" postgres

where i got result of true.

I even did:
postgres=# select pgxc_pool_check();
 pgxc_pool_check
-----------------
 t
(1 row)

and both are ok.

when i do and lsof -i -n -P
postgres  32131    postgres    3u  IPv4 7245254      0t0  TCP *:5433
(LISTEN)
postgres  32131    postgres    4u  IPv6 7245255      0t0  TCP *:5433
(LISTEN)
postgres  32141    postgres    3u  IPv4 7245283      0t0  TCP *:5432
(LISTEN)
postgres  32141    postgres    4u  IPv6 7245284      0t0  TCP *:5432
(LISTEN)

on both servers (data/coord)

So I know they're listening.  And two, i was able to create a database and
table and insert and select from it as system user postgres.
But when I create a postgresql user.  It doesn't work.

My Coord and DataNode pg_hba.conf is:

# "local" is for Unix domain socket connections only
local   all             postgres                                trust

# IPv4 local connections:
host    all             postgres        100.100.10.170/24          trust
host    all             postgres        100.100.10.171/24          trust
host    all             postgres        100.100.10.178/24          trust
 #GTM
host    all             all             127.0.0.1/32            md5
host    all             all             100.100.10.0/24            md5

# IPv6 local connections:
host    all             all             ::1/128                 md5


and in my pgxc_node:

 node_name | node_type | node_port |  node_host  | nodeis_primary |
nodeis_preferred |   node_id
-----------+-----------+-----------+-------------+----------------+------------------+-------------
 datanode0 | D         |      5433 | 100.100.10.170 | f              | f
             |   -96290283
 datanode1 | D         |      5433 | 100.100.10.171 | f              | f
             |   888802358
 coord1    | C         |      5432 | 100.100.10.171 | f              | f
             |  1885696643
 coord0    | C         |      5432 | 100.100.10.170 | f              | f
             | -1944967855

for both servers.

I have them on both coordinator and datanode databases.

I'm @ a loss as to why a system user w/ admin privs can query but a
postgres user w/ priviledges to query gets a :
ERROR:  Failed to get pooled connections

I'm figuring it's a config issue somewhere, but i'm not sure as to where.
 Can some one point me in the right direction?
Thank you in advance,
Don.