Jean
On Mon, Jan 17, 2011 at 4:11 PM, Tanguy von Stebut
<tanguy.von.ste...@gmail.com <mailto:tanguy.von.ste...@gmail.com>> wrote:
Hello again,
I've been working further on my centreon + shinken prototype, and
I encountered some real problems due to integrity violation in
tables nagios_hosts and nagios-hostgroups (duplicates again), but
I didn't keep the log, sorry !!
I had to reload my VM template to recover a nice configuration. As
I'm in prototyping phase, this doesn't matter, but I doubt (:-D)
this could be in production (:/)...
So the (wrong) behavior was that I couldn't add a targetted host
to monitoring, huh... well I think that's critical.That would be
such a shame in production, don't yall think so ?
Hope I'll get some more support here, as I'm starting desperating
myself....
Best regards,
Tanguy
2011/1/17 Tanguy von Stebut <tanguy.von.ste...@gmail.com
<mailto:tanguy.von.ste...@gmail.com>>
2011/1/17 nap <napar...@gmail.com <mailto:napar...@gmail.com>>
On Sun, Jan 16, 2011 at 11:10 PM, Michael Friedrich
<michael.friedr...@univie.ac.at
<mailto:michael.friedr...@univie.ac.at>> wrote:
On 16.01.2011 13:57, nap wrote:
But the unique need a select before, so it's too
performance impacting, especially with "this"
database schema. In fact the only part where we have
duplication are the "common parts" : at the begining
of all "configuration" incorporation, there are a big
"clean all my instance" pass, so the only part that
do not have a instance_id will have problem, like
contacts or groups if I'm not wrong. So the insert
with duplication are really the same value, so
insert/delete or replace are the same thing. Of
source only for mysql, other will still have problems
for this.
the unique doesn't necessarily need a select before,
you can also rebuild the logic of the 'on duplicate
key' feature from mysql, basically sort of 'upsert'.
this has been discussed all over the place on postgres
mailinglists, and also oracle (but oracle is kind of
'special'). on oracle you might find the merge trick,
which idoutils is using currently (where doing a merge
on a single table, matching on the unique constraint
and doing an insert or update either way). on
postgresql you are required to build your own logic -
or risk two queries. i have that currently implemented
the way: try an update, if no rows affected, do an
insert (which is rather bad in that situation).
better would be a stored procedure for that, doing the
exact same thing as mysql does internally when hitting
the insert ... on duplicate key update ...
i've been keeping something like that on my todo list
for a while now, but not yet implemented.
https://dev.icinga.org/issues/146
Thanks for this. So in Mysql it's trivial, and in others
it's rather complex :)
Indeed
I'll look at your code to see the tricks, sounds quite
very good :)
For Centreon I think it will have an impact for this,
after all, here the problem is delete/insert or
replace the same data, it's not like anothers values
are impacted, so there won't be (bad) impacts, just
less warning for the more common case (mysql), and
others (Oracle, Postgresql) won't change (do they
support ON DUPLICATE ?).
If postgres/oracle have the unique constraint set like
mysql, they will surely spit out the same errors on
unique constraint violation then. it depends how you
handle that over there, as mentioned above with an
upsert logic.
Hopefully here the duplicate is not a "huge problem"
because it's really the same data, so it's jsut notice
instead of warning. But if we can manage it in a clean way
it's better of course :)
Thanky, I knew it wouldn't to bothering at last ;)
Thanks for all the tips :)
I'm feeling impressed. Further, I would appreciate to see them
applied :D
Real thanks,
Tanguy
Jean
kind regards,
Michael
Jean
On Sun, Jan 16, 2011 at 12:45 PM, Michael Friedrich
<michael.friedr...@univie.ac.at
<mailto:michael.friedr...@univie.ac.at>> wrote:
On 16.01.2011 08:33, nap wrote:
Oh thanks a lot, so I'll make it mysql backend
only :)
you might check the unique key instead and adapt
the schema a bit then (not causing duplicate key
violations), if it's not up to major changes/many
rows then. but i am not sure how the centreon
select logic works, so i'd vote for a clean (old
grown compatible) solution then.
kind regards,
Michael
Jean
On Sat, Jan 15, 2011 at 6:04 PM, Michael
Friedrich <michael.friedr...@univie.ac.at
<mailto:michael.friedr...@univie.ac.at>> wrote:
On 15.01.2011 13:31, nap wrote:
I think I'll change the insert into
replace. There are some tables that don't
have an id for the configuration instance,
and so duplicate cannot be avoid.
consider that replace into is not available
for postgres/oracle. you'll need kind of an
upsert logic either realized by merge in
oracle, or straight upsert procedures. mysql
is simple with the insert on duplicate key
update statement as an alternative, but this
is non sql standard.
kind regards,
Michael
Jean
On Fri, Jan 14, 2011 at 5:05 PM, Tanguy von
Stebut <tanguy.von.ste...@gmail.com
<mailto:tanguy.von.ste...@gmail.com>> wrote:
Hello folks,
I've been trying to use Shinken with
Centreon 2 as it is actually
"wired" with a NdoDB over MySQL by
default, and I also needed to
produce a PoC of Shinken with a DB
broker. For sure Centreon is still
attractive for my boss...
So, I configured the broker to connect
to a Centreon - ndo - db that
resides on an other VM.
I could verify a simple command line
connection with the user centreon.
But now, when looking at the broker'
logs, I can see Database
integrity Warning returned by the
remote MySQL DB.
Ok, staying positive, I can say the
broker' conf is good, but I'm
worrying about the do-ability of the
solution. Please let me know if
you have some clue :)
Here comes an extract of the broker o'
log :
{code}[CODE]
IOError: [Errno 2] No such file or
directory:
'/usr/local/shinken/var/archives/nagios-01-14-2011-
00.log'
/usr/lib/python2.6/site-packages/Shinken-0.4-py2.6.egg/shinken/db_mysql.py:58:
Warning: Out of ra
nge value adjusted for column
'last_command_check' at row 1
self.db_cursor.execute(query)
/usr/lib/python2.6/site-packages/Shinken-0.4-py2.6.egg/shinken/db_mysql.py:58:
Warning: Out of ra
nge value adjusted for column
'last_log_rotation' at row 1
self.db_cursor.execute(query)
[MysqlDB] Warning : a query raise an
integrity error : INSERT INTO
nagios_contacts (instance_id , alias ,
contact_object_id ,
host_notifications_enabled ,
pager_address ,
service_notifications_enabled ,
email_address , contact_id ) VALUES
('2' , 'none' , '2' , '1' , 'none' ,
'1' , 'napar...@gmail.com
<mailto:napar...@gmail.com>' , '2'
), (1062, "Duplicate entry '2' for key 1")
[MysqlDB] Warning : a query raise an
integrity error : INSERT INTO
nagios_contactgroups (contactgroup_id
, instance_id , config_type ,
alias , contactgroup_object_id )
VALUES ('1' , '2' , '0' , 'admins' ,
'1' ), (1062, "Duplicate entry '1' for
key 1")
[MysqlDB] Warning : a query raise an
integrity error : INSERT INTO
nagios_hostgroups (instance_id , alias
, config_type , hostgroup_id ,
hostgroup_object_id ) VALUES ('2' ,
'Serveurs de la bulle M' , '0' ,
'1' , '75' ), (1062, "Duplicate entry
'1' for key 1")
[/CODE]{code}
Regards,
Tanguy von Stebut
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