This topic describes performance metrics related to the query response time in an OceanBase cluster. The query response time metrics collect statistics on the average time consumed by the OBServer in processing an SQL statement. These metrics are all, select, insert, update, replace, delete, and other. They are classified based on the SQL statement types. You can specify a statistical period to query statistics about the query response time in a single zone or on a single OBServer of an OceanBase cluster.
all
Definition
The average time consumed by the OBServer in processing each SQL statement.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| all | sql_all_rt | ms |
Calculation expression
(sum(rate(ob_sysstat{stat_id="40001",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40003",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40005",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40007",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40009",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40019",@LABELS}[@INTERVAL])) by (@GBLABELS)) / (sum(rate(ob_sysstat{stat_id="40000",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40002",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40004",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40006",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40008",@LABELS}[@INTERVAL])) by (@GBLABELS) + sum(rate(ob_sysstat{stat_id="40018",@LABELS}[@INTERVAL])) by (@GBLABELS))
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40001, 40003, 40005, 40007, 40009, 40019, 40000, 40002, 40004, 40006, 40008, 40018) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40001, 40003, 40005, 40007, 40009, 40019, 40000, 40002, 40004, 40006, 40008, 40018) and (con_id > 1000 or con_id = 1) and class < 1000
select
Definition
The average time consumed by the OBServer in processing each SELECT statement.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| select | sql_select_rt | ms |
Calculation expression
sum(rate(ob_sysstat{stat_id="40001",@LABELS}[@INTERVAL])) by (@GBLABELS) / sum(rate(ob_sysstat{stat_id="40000",@LABELS}[@INTERVAL])) by (@GBLABELS)
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40000, 40001) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40000, 40001) and (con_id > 1000 or con_id = 1) and class < 1000
insert
Definition
The average time consumed by the OBServer in processing each INSERT statement.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| insert | sql_insert_rt | ms |
Calculation expression
sum(rate(ob_sysstat{stat_id="40003",@LABELS}[@INTERVAL])) by (@GBLABELS) / sum(rate(ob_sysstat{stat_id="40002",@LABELS}[@INTERVAL])) by (@GBLABELS)
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40002, 40003) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40002, 40003) and (con_id > 1000 or con_id = 1) and class < 1000
update
Definition
The average time consumed by the OBServer in processing each UPDATE statement.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| update | sql_update_rt | ms |
Calculation expression
sum(rate(ob_sysstat{stat_id="40007",@LABELS}[@INTERVAL])) by (@GBLABELS) / sum(rate(ob_sysstat{stat_id="40006",@LABELS}[@INTERVAL])) by (@GBLABELS)
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40006, 40007) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40006, 40007) and (con_id > 1000 or con_id = 1) and class < 1000
replace
Definition
The average time consumed by the OBServer in processing each REPLACE statement.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| replace | sql_replace_rt | ms |
Calculation expression
sum(rate(ob_sysstat{stat_id="40005",@LABELS}[@INTERVAL])) by (@GBLABELS) / sum(rate(ob_sysstat{stat_id="40004",@LABELS}[@INTERVAL])) by (@GBLABELS)
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40004, 40005) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40004, 40005) and (con_id > 1000 or con_id = 1) and class < 1000
delete
Definition
The average time consumed by the OBServer in processing each DELETE statement.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| delete | sql_delete_rt | ms |
Calculation expression
sum(rate(ob_sysstat{stat_id="40009",@LABELS}[@INTERVAL])) by (@GBLABELS) / sum(rate(ob_sysstat{stat_id="40008",@LABELS}[@INTERVAL])) by (@GBLABELS)
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40008, 40009) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40008, 40009) and (con_id > 1000 or con_id = 1) and class < 1000
other
Definition
The average time consumed by the OBServer in processing each of other statements such as data definition language (DDL), data control language (DCL), and data transaction language (DTL) statements.
Description
Metric |
Metric field name |
Unit |
|---|---|---|
| other | sql_other_rt | ms |
Calculation expression
sum(rate(ob_sysstat{stat_id="40019",@LABELS}[@INTERVAL])) by (@GBLABELS) / sum(rate(ob_sysstat{stat_id="40000",@LABELS}[@INTERVAL])) by (@GBLABELS)
SQL statements for metric collection
- If you use OceanBase Database of a version earlier than V4.0, execute the following statement:
select /*+ MONITOR_AGENT READ_CONSISTENCY(WEAK) */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40000, 40019) and (con_id > 1000 or con_id = 1) and class < 1000
If you use OceanBase Database V4.0 or later, execute the following statement:
select /* MONITOR_AGENT */ con_id tenant_id, stat_id, value from v$sysstat where stat_id IN (40000, 40019) and (con_id > 1000 or con_id = 1) and class < 1000