12c Cloud Control Repository: How to Modify the Default Retention and Purging Policies for Metric Data? (Doc ID 1405036.1)

To modify the default retention time for the table EM_METRIC_VALUES from 7 partitions to 14 partitions:

1. Use SQL*Plus to connect to the repository database as the SYSMAN user.
2. Check the current value of the retention periods:

select table_name, partitions_retained
from em_int_partitioned_tables
where table_name in ('EM_METRIC_VALUES','EM_METRIC_VALUES_HOURLY','EM_METRIC_VALUES_DAILY');

TABLE_NAME                 PARTITIONS_RETAINED
-------------------------  -------------------
EM_METRIC_VALUES                             7
EM_METRIC_VALUES_HOURLY                     32
EM_METRIC_VALUES_DAILY                      12

3. To modify the default retention time for the table EM_METRIC_VALUES from 7 partitions to 14, execute:

execute gc_interval_partition_mgr.set_retention('SYSMAN', 'EM_METRIC_VALUES', 14);

4. Verify that the retention period has been modified:

select table_name, partitions_retained
from em_int_partitioned_tables
where table_name in ('EM_METRIC_VALUES','EM_METRIC_VALUES_HOURLY','EM_METRIC_VALUES_DAILY');

TABLE_NAME                PARTITIONS_RETAINED
------------------------- -------------------
EM_METRIC_VALUES                           14
EM_METRIC_VALUES_HOURLY                    32
EM_METRIC_VALUES_DAILY                     12
 

Verifying the Partition Maintenance

Login to repository database as the SYSMAN user and execute the below queries:

select count(*) from EM_METRIC_VALUES where collection_time < trunc(sysdate - 7);
select count(*) from EM_METRIC_VALUES_HOURLY where collection_time < trunc(sysdate - 32);
select count(*) from EM_METRIC_VALUES_DAILY where collection_time < add_months(sysdate,-13);
The queries should return 0 rows if the default retention policies are set.


Note: The queries check if there is any data in these tables beyond the default retention periods: 7 days, 32 days, 12 months, respectively. If the retention periods have been modified, then the corresponding numbers should be used.

metric extension

-- 12-AUG-14	12-AUG-14
select min(collection_time), max(collection_time) from sysman.gc$metric_values_latest where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
select * from sysman.gc$metric_values_latest where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
-- 11-JUL-14	11-AUG-14
-- 07-AUG-14	08-SEP-14
select min(collection_time), max(collection_time) from sysman.gc$metric_values_hourly where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
select * from sysman.gc$metric_values_hourly where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
-- 01-JAN-14	11-AUG-14
-- 01-JAN-14	08-SEP-14
select min(collection_time), max(collection_time) from sysman.gc$metric_values_daily where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
select * from sysman.gc$metric_values_daily where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';


desc sysman.gc$metric_values_latest
Name                      Null     Type          
------------------------- -------- ------------- 
ENTITY_TYPE               NOT NULL VARCHAR2(64)  
ENTITY_NAME               NOT NULL VARCHAR2(256) 
TYPE_META_VER             NOT NULL VARCHAR2(8)   
METRIC_GROUP_NAME         NOT NULL VARCHAR2(64)  
METRIC_COLUMN_NAME        NOT NULL VARCHAR2(64)  
COLUMN_TYPE               NOT NULL NUMBER(1)     
COLUMN_INDEX              NOT NULL NUMBER(3)     
DATA_COLUMN_TYPE          NOT NULL NUMBER(2)     
METRIC_GROUP_ID           NOT NULL NUMBER(38)    
METRIC_GROUP_LABEL                 VARCHAR2(64)  
METRIC_GROUP_LABEL_NLSID           VARCHAR2(64)  
METRIC_COLUMN_ID          NOT NULL NUMBER(38)    
METRIC_COLUMN_LABEL                VARCHAR2(64)  
METRIC_COLUMN_LABEL_NLSID          VARCHAR2(64)  
DESCRIPTION                        VARCHAR2(128) 
SHORT_NAME                         VARCHAR2(40)  
UNIT                               VARCHAR2(32)  
IS_FOR_SUMMARY                     NUMBER        
IS_STATEFUL                        NUMBER        
NON_THRESHOLDED_ALERTS             NUMBER        
METRIC_KEY_ID             NOT NULL NUMBER(38)    
KEY_PART_1                NOT NULL VARCHAR2(256) 
KEY_PART_2                NOT NULL VARCHAR2(256) 
KEY_PART_3                NOT NULL VARCHAR2(256) 
KEY_PART_4                NOT NULL VARCHAR2(256) 
KEY_PART_5                NOT NULL VARCHAR2(256) 
KEY_PART_6                NOT NULL VARCHAR2(256) 
KEY_PART_7                NOT NULL VARCHAR2(256) 
COLLECTION_TIME           NOT NULL DATE          
COLLECTION_TIME_UTC                DATE          
VALUE                              NUMBER        


desc sysman.gc$metric_values_hourly
Name                      Null     Type          
------------------------- -------- ------------- 
ENTITY_TYPE               NOT NULL VARCHAR2(64)  
ENTITY_NAME               NOT NULL VARCHAR2(256) 
ENTITY_GUID               NOT NULL RAW(16 BYTE)  
PARENT_ME_TYPE                     VARCHAR2(64)  
PARENT_ME_NAME                     VARCHAR2(256) 
PARENT_ME_GUID            NOT NULL RAW(16 BYTE)  
TYPE_META_VER             NOT NULL VARCHAR2(8)   
METRIC_GROUP_NAME         NOT NULL VARCHAR2(64)  
METRIC_COLUMN_NAME        NOT NULL VARCHAR2(64)  
COLUMN_TYPE               NOT NULL NUMBER(1)     
COLUMN_INDEX              NOT NULL NUMBER(3)     
DATA_COLUMN_TYPE          NOT NULL NUMBER(2)     
METRIC_GROUP_ID           NOT NULL NUMBER(38)    
METRIC_GROUP_LABEL                 VARCHAR2(64)  
METRIC_GROUP_LABEL_NLSID           VARCHAR2(64)  
METRIC_COLUMN_ID          NOT NULL NUMBER(38)    
METRIC_COLUMN_LABEL                VARCHAR2(64)  
METRIC_COLUMN_LABEL_NLSID          VARCHAR2(64)  
DESCRIPTION                        VARCHAR2(128) 
SHORT_NAME                         VARCHAR2(40)  
UNIT                               VARCHAR2(32)  
IS_FOR_SUMMARY                     NUMBER        
IS_STATEFUL                        NUMBER        
NON_THRESHOLDED_ALERTS             NUMBER        
METRIC_KEY_ID             NOT NULL NUMBER(38)    
KEY_PART_1                NOT NULL VARCHAR2(256) 
KEY_PART_2                NOT NULL VARCHAR2(256) 
KEY_PART_3                NOT NULL VARCHAR2(256) 
KEY_PART_4                NOT NULL VARCHAR2(256) 
KEY_PART_5                NOT NULL VARCHAR2(256) 
KEY_PART_6                NOT NULL VARCHAR2(256) 
KEY_PART_7                NOT NULL VARCHAR2(256) 
COLLECTION_TIME           NOT NULL DATE          
COLLECTION_TIME_UTC                DATE          
COUNT_OF_COLLECTIONS      NOT NULL NUMBER(38)    
AVG_VALUE                          NUMBER        
MIN_VALUE                          NUMBER        
MAX_VALUE                          NUMBER        
STDDEV_VALUE                       NUMBER        


desc sysman.gc$metric_values_daily
Name                      Null     Type          
------------------------- -------- ------------- 
ENTITY_TYPE               NOT NULL VARCHAR2(64)  
ENTITY_NAME               NOT NULL VARCHAR2(256) 
ENTITY_GUID               NOT NULL RAW(16 BYTE)  
PARENT_ME_TYPE                     VARCHAR2(64)  
PARENT_ME_NAME                     VARCHAR2(256) 
PARENT_ME_GUID            NOT NULL RAW(16 BYTE)  
TYPE_META_VER             NOT NULL VARCHAR2(8)   
METRIC_GROUP_NAME         NOT NULL VARCHAR2(64)  
METRIC_COLUMN_NAME        NOT NULL VARCHAR2(64)  
COLUMN_TYPE               NOT NULL NUMBER(1)     
COLUMN_INDEX              NOT NULL NUMBER(3)     
DATA_COLUMN_TYPE          NOT NULL NUMBER(2)     
METRIC_GROUP_ID           NOT NULL NUMBER(38)    
METRIC_GROUP_LABEL                 VARCHAR2(64)  
METRIC_GROUP_LABEL_NLSID           VARCHAR2(64)  
METRIC_COLUMN_ID          NOT NULL NUMBER(38)    
METRIC_COLUMN_LABEL                VARCHAR2(64)  
METRIC_COLUMN_LABEL_NLSID          VARCHAR2(64)  
DESCRIPTION                        VARCHAR2(128) 
SHORT_NAME                         VARCHAR2(40)  
UNIT                               VARCHAR2(32)  
IS_FOR_SUMMARY                     NUMBER        
IS_STATEFUL                        NUMBER        
NON_THRESHOLDED_ALERTS             NUMBER        
METRIC_KEY_ID             NOT NULL NUMBER(38)    
KEY_PART_1                NOT NULL VARCHAR2(256) 
KEY_PART_2                NOT NULL VARCHAR2(256) 
KEY_PART_3                NOT NULL VARCHAR2(256) 
KEY_PART_4                NOT NULL VARCHAR2(256) 
KEY_PART_5                NOT NULL VARCHAR2(256) 
KEY_PART_6                NOT NULL VARCHAR2(256) 
KEY_PART_7                NOT NULL VARCHAR2(256) 
COLLECTION_TIME           NOT NULL DATE          
COLLECTION_TIME_UTC                DATE          
COUNT_OF_COLLECTIONS      NOT NULL NUMBER(38)    
AVG_VALUE                          NUMBER        
MIN_VALUE                          NUMBER        
MAX_VALUE                          NUMBER        
STDDEV_VALUE                       NUMBER        

sysman.gc$metric_values_latest, sysman.gc$metric_values_hourly, sysman.gc$metric_values_daily

-- 12-AUG-14	12-AUG-14
select min(collection_time), max(collection_time) from sysman.gc$metric_values_latest where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
select * from sysman.gc$metric_values_latest where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
-- 11-JUL-14	11-AUG-14
-- 07-AUG-14	08-SEP-14
select min(collection_time), max(collection_time) from sysman.gc$metric_values_hourly where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
select * from sysman.gc$metric_values_hourly where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
-- 01-JAN-14	11-AUG-14
-- 01-JAN-14	08-SEP-14
select min(collection_time), max(collection_time) from sysman.gc$metric_values_daily where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';
select * from sysman.gc$metric_values_daily where METRIC_GROUP_NAME = 'ME$CELLSRV_IOPS_ALL' and entity_name like 'x08p%';