Last updated on DECEMBER 06, 2016
Applies to:
Oracle Database - Enterprise Edition - Version 10.2.0.4 and laterInformation in this document applies to any platform.
***Checked for relevance on 08-Jul-2016***
Symptoms
Tablespace has hit the threshold percentage yet no alert is seen.
The tablespace usage is correctly reported in dba_tablespace_usage_metrics, however
no alert is seen in DBA_OUTSTANDING_ALERTS and hence no alert is reported on
the Grid Control Metric Page.
Example:
Check the tablespace usage
SQL> select * from dba_tablespace_usage_metrics where tablespace_name = 'DUMMY';
TABLESPACE_NAME USED_SPACE TABLESPACE_SIZE USED_PERCENT
DUMMY 23 25 92
TABLESPACE_NAME USED_SPACE TABLESPACE_SIZE USED_PERCENT
DUMMY 23 25 92
Check the current threshold settings
SQL> SELECT "METRICS_NAME",
"WARNING_OPERATOR" WARN_OP, "WARNING_VALUE" WARN_VAL,
"CRITICAL_OPERATOR" CRIT_OP, "CRITICAL_VALUE" CRIT_VAL,
"OBJECT_TYPE" OBJ_TYPE,
"OBJECT_NAME" OBJ_NAME,
"STATUS"
FROM "SYS"."DBA_THRESHOLDS"
WHERE metrics_name like '%Tablespace%';
METRICS_NAME WARN_OP
---------------------------------------------------------------- ------------
WARN_VAL CRIT_OP CRIT_VAL OBJ_TYPE OBJ_NAME STATUS
-------- ------------ -------- ---------- ---------- -------
Tablespace Bytes Space Usage LE
0 LE 0 TABLESPACE VALID
Tablespace Space Usage GE
85 GE 97 TABLESPACE VALID
"WARNING_OPERATOR" WARN_OP, "WARNING_VALUE" WARN_VAL,
"CRITICAL_OPERATOR" CRIT_OP, "CRITICAL_VALUE" CRIT_VAL,
"OBJECT_TYPE" OBJ_TYPE,
"OBJECT_NAME" OBJ_NAME,
"STATUS"
FROM "SYS"."DBA_THRESHOLDS"
WHERE metrics_name like '%Tablespace%';
METRICS_NAME WARN_OP
---------------------------------------------------------------- ------------
WARN_VAL CRIT_OP CRIT_VAL OBJ_TYPE OBJ_NAME STATUS
-------- ------------ -------- ---------- ---------- -------
Tablespace Bytes Space Usage LE
0 LE 0 TABLESPACE VALID
Tablespace Space Usage GE
85 GE 97 TABLESPACE VALID
Check the outstanding alerts
SQL> SELECT "OBJECT_NAME", "OBJECT_TYPE", "REASON",
"SUGGESTED_ACTION", "ADVISOR_NAME",
"METRIC_VALUE", "MESSAGE_TYPE", "MESSAGE_LEVEL",
"INSTANCE_NAME",
"INSTANCE_NUMBER", "ERROR_INSTANCE_ID"
FROM "SYS"."DBA_OUTSTANDING_ALERTS"
WHERE reason_id=9;
No rows selected
"SUGGESTED_ACTION", "ADVISOR_NAME",
"METRIC_VALUE", "MESSAGE_TYPE", "MESSAGE_LEVEL",
"INSTANCE_NAME",
"INSTANCE_NUMBER", "ERROR_INSTANCE_ID"
FROM "SYS"."DBA_OUTSTANDING_ALERTS"
WHERE reason_id=9;
No rows selected
As per threshold settings we should have seen an alert for the tablespace DUMMY however it is not reported in the outstanding alerts.
Cause
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