Trend-Reporting Metrics for Teradata Database - Teradata Viewpoint - 16.00

Teradata Viewpoint User Guide

prodname
Teradata Viewpoint
vrm_release
16.00
category
User Guide
featnum
B035-2206-106K

Database Metrics

Metric Description Type
Current Perm Sum of the current amount of permanent space (disk space) used across all vprocs Number
Current Perm Max Maximum permanent space used on a single vproc Number
Current Perm Min Minimum permanent space used on a single vproc Number
Current Spool Sum of the current amount of spool space (disk space) used across all vprocs Number
Current Spool Max Maximum spool space used on a single vproc Number
Current Spool Min Minimum spool space used on a single vproc Number
Current Temp Sum of the current amount of temporary space (disk space) used across all vprocs Number
Current Temp Max Maximum temporary space used on a single vproc Number
Current Temp Min Minimum temporary space used on a single vproc Number
Peak Perm Sum of the largest amount of permanent space used across all vprocs since the last reset of the peak perm value Number
Peak Perm Max Maximum of the largest amount of permanent space used on a single vproc since the last reset Number
Peak Perm Min Minimum of the largest amount of permanent space used on a single vproc since the last reset Number
Peak Spool Sum of the largest amount of spool used across all vprocs since the last reset of the peak perm value Number
Peak Spool Max Maximum of the largest amount of spool used on a single vproc since the last reset Number
Peak Spool Min Minimum of the largest amount of spool used on a single vproc since the last reset Number
Peak Temp Sum of the largest amount of temporary space used across all vprocs since the last reset of the peak perm value Number
Peak Temp Max Maximum of the largest amount of temporary space used on a single vproc since the last reset Number
Peak Temp Min Minimum of the largest amount of temporary space used on a single vproc since the last reset Number
Perm Limit Maximum space available for permanent space storage of all index tables, data tables, subtables, stored procedures, triggers, and permanent journals Number
Spool Limit Maximum space available for storage of spool database objects Number
Temp Limit Maximum space available for storage of temporary database objects Number

Performance Metrics

Metric Description Type
Blocking Duration Total time the heartbeat query is blocked Number
Concurrency Average number of active tasks running on Teradata Database while the heartbeat query is running Number
Response Time Average response time of the selected canary query Number
Retrieve Time Average time to retrieve all results Number
Rows Returned Average number of rows returned by the selected canary query Number
Total Time Combined response time and retrieve time Number

Query Metrics

Metric Description Type
Abort Total Total aborted queries Number
Active AMPs Avg Average number of active AMPs Number
Active AMPs Max Maximum number of active AMPs Number
Active AMPs Min Minimum number of active AMPs Number
Active AMPs Stddev Standard deviation of active AMPs Number
AMP CPU Skew Avg Average percent of AMP CPU skew Percent
AMP CPU Skew Max Maximum percent of AMP CPU skew Percent
AMP CPU Skew Min Minimum percent of AMP CPU skew Percent
AMP CPU Skew Stddev Standard deviation percent of AMP CPU skew Percent
AMP I/O Skew Avg Average percent AMP I/O skew Percent
AMP I/O Skew Max Maximum percent AMP I/O skew Percent
AMP I/O Skew Min Minimum percent AMP I/O skew Percent
AMP I/O Skew Stddev Standard deviation of AMP I/O skew Percent
Cache Total Total queries found in step cache Number
Concurrency Average number of queries executing simultaneously during the hour Number
Delay Time Avg Average query delay time Number
Delay Time Max Maximum query delay time Number
Delay Time Min Minimum query delay time Number
Delay Time Stddev Standard deviation of query delay time Number
First Response Time Avg Average time it takes to receive the first response Number
First Response Time Max Maximum time it takes to receive the first response Number
First Response Time Min Minimum time it takes to receive the first response Number
First Response Time Stddev Standard deviation of time it takes to receive the first response Number
Max Steps in Parallelism Avg Average number of level-2 query steps executed in parallel Number
Max Steps in Parallelism Max Maximum number of level-2 query steps executed in parallel Number
Max Steps in Parallelism Min Minimum number of level-2 query steps executed in parallel Number
Max Steps in Parallelism Stddev Standard deviation of number of level-2 query steps executed in parallel Number
Number of Steps Avg Average number of query steps Number
Number of Steps Max Maximum number of query steps Number
Number of Steps Min Minimum number of query steps Number
Number of Steps Stddev Standard deviation of number of query steps Number
Query Count Queries logged in dbc.QryLog, or the sum of Querycount from dbc.QryLogsummary during the sample period Number
Query Seconds Avg Average query run time Number
Query Seconds Max Maximum query run time Number
Query Seconds Min Minimum query run time Number
Query Seconds Stddev Standard deviation of query run time Number
Result Rows Avg Average number of result rows for the query Number
Result Rows Max Maximum number of result rows for the query Number
Result Rows Min Minimum number of result rows for the query Number
Result Rows Stddev Standard deviation of number of result rows for the query Number
Spool Usage Avg Average amount of spool the query used Number
Spool Usage Max Maximum amount of spool the query used Number
Spool Usage Min Minimum amount of spool the query used Number
Spool Usage Stddev Standard deviation of amount of spool the query used Number
Steps with Parallelism Avg Average number of query steps with parallel steps Number
Steps with Parallelism Max Maximum number of query steps with parallel steps Number
Steps with Parallelism Min Minimum number of query steps with parallel steps Number
Steps with Parallelism Stddev Standard deviation of number of query steps with parallel steps Number
Total CPU Time Avg Average CPU time. CPU time is calculated as the total AMP CPU time plus the total parser and dispatcher CPU time for the query. Number
Total CPU Time Max Maximum CPU time. CPU time is calculated as the total AMP CPU time plus the total parser and dispatcher CPU time for the query. Number
Total CPU Time Min Minimum CPU time. CPU time is calculated as the total AMP CPU time plus the total parser and dispatcher CPU time for the query. Number
Total CPU Time Stddev Standard deviation of CPU time. CPU time is calculated as the total AMP CPU time plus the total parser and dispatcher CPU time for the query. Number
Total I/O Count Avg Average I/O count for the query Number
Total I/O Count Max Maximum I/O count for the query Number
Total I/O Count Min Minimum I/O count for the query Number
Total I/O Count Stddev Standard deviation of I/O count for the query Number
Warning Total Total queries with warnings Number

System Metrics

Metric Description Type
Active Sessions Sessions with active queries Number
AMP CPU Skew Comparison of CPU use on the busiest AMP to the average AMP Percent
AMP I/O Skew Comparison of disk use on the busiest AMP to the average AMP Percent
Average Memory Available Average approximate free memory, as reported by the Linux “free” command, across all nodes Number
AWT Average number of AMP worker tasks in use on each AMP Number
Components Components, such as BYNETs or AMPs, that are down Number
CPU Average node CPU use. CPU is calculated as the sum of the user CPU and system CPU usage percentages. Percent
CPU AWT Processing CPU resources spent processing an AMP worker task. Normalized by multiplying the value returned from Teradata Database by the number of physical CPUs on the associated node of the AWT. Percent
CPU/Disk Ratio Ratio of CPU use to disk use. Calculated as the node CPU time divided by the physical disk usage. Percent
CPU Dispatcher Processing CPU resources spent in PE Dispatcher processing Percent
DBC Disk Space Available DBC disk space in use Percent
Disk I/O Disk I/Os Number
Disk Reads Total physical disk reads per system during the sample period Number
Disk Usage Disk use on the system Percent
Disk Writes Total physical disk writes per system during the sample period Number
FSG Cache Miss Percentage of FSG cache misses. Calculated as physical I/Os divided by logical I/Os. Percent
Host Block Reads Total message blocks (one or more messages sent in one physical group) received from all clients Number
Host Block Writes Total message blocks sent to all hosts Number
Index Ratio Percentage of index hits. Calculated as the index I/Os divided by the data block I/Os. Percent
Logical MB/Sec Logical I/O of the system in megabytes per second Number
Max Disk Space By AMP Available disk space currently in use Percent
Max Spool Space By AMP Available spool space in use Percent
Minimum Memory Available Minimum approximate free memory, as reported by the Linux “free” command, across all nodes. The value is from the node with the least free memory. Number
Net A Usage Percent of BYNET A usage (BYNET receiver usage) Percent
Net Reads Total reads from the BYNET during the sample period Number
Net Writes Total messages written to the BYNET during the sample period Number
Node CPU Skew Comparison of CPU use on the busiest node to the average node Percent
Node CPU Usage Average percent of CPU usage of all online nodes in the configuration Percent
Node I/O Skew Comparison of disk use on the busiest node to the average node Percent
Nodes Down Number of system nodes down Number
Parallelism Percentage of parallelism, calculated as the average CPU usage / maximum CPU usage x 100 Percent
PE CPU Usage Average CPU usage of the PEs. Calculated as the average usage of the parser and the dispatcher (both normalized values). Normalized by multiplying the value by the number of physical CPUs on the associated node of the PE. Percent
Read I/O Percentage of I/O that are reads Percent
Session Login Count Sessions currently logged on to the system Number
Swap Drops Total pages or segments dropped from memory during the sample period due to swapping Number
Swap Reads Total pages or segments read into memory from the disk after a prior write or drop during the sample period Number
Swap Writes Total pages or segments written into swap area from memory during the sample period Number
System CPU Average CPU time spent in System mode Percent
Total AMP CPU Total AMP CPU use Percent
Total Disk Space Total disk space currently in use Percent
Total Node CPU Total node CPU use Percent
User CPU Average CPU time spent in User mode Percent
Vproc CPU Usage Average percent of the CPU usage of all online vprocs in the configuration. Normalized by multiplying the value returned from Teradata Database by the number of physical CPUs in the associated vproc. Percent
Wait I/O CPU Average CPU time spent waiting for I/O Percent

Table Metrics

Metric Description Type
Index Count Total indexes Number
Table Size Table size in bytes, including index, fallback, and journal subtables Number