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From "Thomas Moroder (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-8980) CloudStack 4.5.2 not reporting correct total capacities on MariaDB-server 10.1
Date Thu, 22 Oct 2015 10:16:27 GMT
Thomas Moroder created CLOUDSTACK-8980:
------------------------------------------

             Summary: CloudStack 4.5.2 not reporting correct total capacities on MariaDB-server
10.1
                 Key: CLOUDSTACK-8980
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8980
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
          Components: Management Server
    Affects Versions: 4.5.2
         Environment: CentOS release 6.7 with MariaDB-server-10.1.8-1.el6.x86_64
            Reporter: Thomas Moroder


The CPU and memory total capacity as reported by the API and as visible on the CS dashboard
are shown as zero. This is due to the following query failing to get correct results when
the database is run on MariaDB 10.1:

SELECT sum(capacity.used_capacity), sum(capacity.reserved_capacity), (case capacity_type when
1 then (sum(total_capacity) * (select value from `cloud`.`cluster_details` where cluster_details.name=
'cpuOvercommitRatio' AND cluster_details.cluster_id=capacity.cluster_id)) when '0' then (sum(total_capacity)
* (select value from `cloud`.`cluster_details` where cluster_details.name= 'memoryOvercommitRatio'
AND cluster_details.cluster_id=capacity.cluster_id))else sum(total_capacity) end),((sum(capacity.used_capacity)
+ sum(capacity.reserved_capacity)) / ( case capacity_type when 1 then (sum(total_capacity)
* (select value from `cloud`.`cluster_details` where cluster_details.name= 'cpuOvercommitRatio'
AND cluster_details.cluster_id=capacity.cluster_id)) when '0' then (sum(total_capacity) *
(select value from `cloud`.`cluster_details` where cluster_details.name= 'memoryOvercommitRatio'
AND cluster_details.cluster_id=capacity.cluster_id)) else sum(total_capacity) end)) percent,capacity.capacity_type,
capacity.data_center_id, pod_id, cluster_id FROM `cloud`.`op_host_capacity` capacity WHERE
 total_capacity > 0 AND data_center_id is not null AND capacity_state='Enabled'  AND capacity.data_center_id
= ? AND capacity.cluster_id = ? AND capacity.capacity_type = ? GROUP BY data_center_id, pod_id,
cluster_id, capacity_type

The output is incorrect and like this:
+-----------------------------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------+---------------+----------------+--------+------------+
| sum(capacity.used_capacity) | sum(capacity.reserved_capacity) | (case capacity_type when
1 then (sum(total_capacity) * (select value from `cloud`.`cluster_details` where cluster_details.name=
'cpuOvercommitRatio' AND cluster_details.cluster_id=capacity.cluster_id)) when '0' then (sum(total_capacity)
* (select value fro | percent | capacity_type | data_center_id | pod_id | cluster_id |
+-----------------------------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------+---------------+----------------+--------+------------+
|                404750336000 |                               0 |                        
                                                                                         
                                                                                         
                                                NULL |    NULL |             0 |         
    3 |      3 |          3 |
+-----------------------------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------+---------------+----------------+--------+------------+


After some analysis this seems due to the value of "capacity.cluster_id" as set in the final
WHERE-clause not being used in the (nested) previous WHERE clauses like in:

cluster_details.cluster_id=capacity.cluster_id

If I manually update the query by specifying the cluster_id-number it works correctly, e.g.:

SELECT sum(capacity.used_capacity), sum(capacity.reserved_capacity), (case capacity_type when
1 then (sum(total_capacity) * (select value from `cloud`.`cluster_details` where cluster_details.name=
'cpuOvercommitRatio' AND cluster_details.cluster_id=3)) when '0' then (sum(total_capacity)
* (select value from `cloud`.`cluster_details` where cluster_details.name= 'memoryOvercommitRatio'
AND cluster_details.cluster_id=3))else sum(total_capacity) end),((sum(capacity.used_capacity)
+ sum(capacity.reserved_capacity)) / ( case capacity_type when 1 then (sum(total_capacity)
* (select value from `cloud`.`cluster_details` where cluster_details.name= 'cpuOvercommitRatio'
AND cluster_details.cluster_id=3)) when '0' then (sum(total_capacity) * (select value from
`cloud`.`cluster_details` where cluster_details.name= 'memoryOvercommitRatio' AND cluster_details.cluster_id=3))
else sum(total_capacity) end)) percent,capacity.capacity_type, capacity.data_center_id, pod_id,
cluster_id FROM `cloud`.`op_host_capacity` capacity WHERE  total_capacity > 0 AND data_center_id
is not null AND capacity_state='Enabled'  AND capacity.data_center_id = 3 AND capacity.cluster_id
= 3 AND capacity.capacity_type = 0 GROUP BY data_center_id, pod_id, cluster_id, capacity_type

The output then is correct and like this:
+-----------------------------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------+---------------+----------------+--------+------------+
| sum(capacity.used_capacity) | sum(capacity.reserved_capacity) | (case capacity_type when
1 then (sum(total_capacity) * (select value from `cloud`.`cluster_details` where cluster_details.name=
'cpuOvercommitRatio' AND cluster_details.cluster_id=3)) when '0' then (sum(total_capacity)
* (select value from `cloud`.`cluster | percent             | capacity_type | data_center_id
| pod_id | cluster_id |
+-----------------------------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------+---------------+----------------+--------+------------+
|                404750336000 |                               0 |                        
                                                                                         
                                                                                         
                                        810895474688 | 0.49913996147990797 |             0
|              3 |      3 |          3 |
+-----------------------------+---------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+---------------------+---------------+----------------+--------+------------+
1 row in set (0.00 sec)

I don't know if this is an issue with MariaDB or correct SQL to use; the query works on older
MySQL versions.

As a workaround an older MySQL-version can be used. If this needs fixing, then the CS management
server could specify the cluster_id during the query in all the required places.



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